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Jonathan Duffy

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Dr Jonathan Duffy

Jonathan Duffy

Senior Lecturer
National Centre for Maritime Engineering and Hydrodynamics

Room B15, Swanson Building, Newnham Campus

+61 3 6324 9899 (phone)

J.Duffy@utas.edu.au

Jonathan has held the following positions at AMC/UTAS:

  • Deputy Director (Research), NCMEH
  • Graduate Research Coordinator, NCMEH
  • Alternate Graduate Research Coordinator, NCMEH
  • Senior Lecturer, NCMEH, UTAS/AMC
  • Acting Manager AMC Towing Tank and Model Test Basin
  • Lecturer, NCMEH, UTAS/AMC
  • Associate Lecturer, NCMEH, AMC
  • Research Associate, National Centre for Maritime Engineering and Hydrodynamics (NCMEH), AMC

Biography

Dr Jonathan Duffy is a Senior Lecturer for the National Centre for Maritime Engineering and Hydrodynamics. He is interested in ship hydrodynamics, particularly ship manoeuvring and ship behaviour in waves. He has received five prestigious awards for his publications and served two terms as a member of the Manoeuvring Committee of an international industry peak body of hydrodynamic test facilities, International Towing Tank Conference. The strong, strategically important links that he has developed with industry have facilitated research income and numerous publications.

Career summary

Qualifications

  • PhD (2008) 'Modelling of ship-bank interaction and ship squat for ship-handling simulation' University of Tasmania - Australian Maritime College, Australia
  • BEng (Naval Architecture) (Hons) (1997) Australian Maritime College, Australia

Memberships

Professional practice

  • Member, Royal Institution of Naval Architects

Other

Appointed as a member and co-editor of the 27th (2012-2014) and 28th (2015-2017) International Towing Tank Conference Committee for ship manoeuvring. The ship manoeuvring committee is responsible for setting policy and procedures for the prediction of hydrodynamic manoeuvring performance of ships and marine installations based on the results of physical and numerical modelling.

Administrative expertise

  • Managing contract research projects
  • Deputy Director (Research) NCMEH (April 2015-June 2018)
  • NCMEH Graduate Research Coordinator (2012-2014)
  • NCMEH Alternate Graduate Research Coordinator (2011 – 2012)
  • Acting Manager AMC Towing Tank and Model Test Basin (Sep 2005–Mar 2006) (Jul 2011–Mar 2012) (Jan–Jun 2010)

Teaching

Ship-handling simulation, Ship and submarine manoeuvring, Seakeeping

Teaching expertise

Research Appointments

Appointed as a member and co-editor of the 27th (2012-2014) and 28th (2015-2017) International Towing Tank Conference Committee for ship manoeuvring. The ship manoeuvring committee is responsible for setting policy and procedures for the prediction of hydrodynamic manoeuvring performance of ships and marine installations based on the results of physical and numerical modelling.

View more on Dr Jonathan Duffy in WARP

Expertise

Jonathan’s research experience is in the field of ship hydrodynamics and ship-handling simulation. His work involves experimental and numerical methods to predict the following:

  • Ship manoeuvring in deep, shallow and restricted water
  • Berthed ship motions and mooring loads due to passing ships, waves, wind and current
  • Ship to ship interaction in deep, shallow and restricted calm water and in waves
  • Hydrodynamic interaction between two submerged underwater bodies
  • Ship motions in waves

Research Themes

Jonathan's research aligns to the University's research theme of Marine, Antarctic and Maritime. His research interests include ship hydrodynamics with focus on the manoeuvring and seakeeping behaviour of surface vehicles and submarines.

One area of focus is predicting berthed ship motions and mooring loads due to wind, current, waves and/or passing ships. The aim of the work is to quantify berthed ship motions and mooring loads to enable optimum port and mooring arrangements to be established, reducing the likelihood of loading/unloading disruptions and/or damage to mooring equipment, which improves port safety, throughput and efficiency. He has conducted numerous contract research projects for key Australian ports to predict berthed ship motions and mooring loads.

Other examples of Jonathan’s work include investigations into ship-to-ship interaction in calm water and waves, ship-bank interaction and ship squat (ship interaction with the seabed). Jonathan has been involved in developing mathematical models on the above topics to improve the accuracy of ship-handling simulators. This work is important because sectors of the maritime industry rely heavily upon ship-handling simulators to improve the safety and efficiency of their operations.

Jonathan is working on a range of collaborative research projects with Defence Science and Technology Group. This involves investigation into manoeuvring and seakeeping behaviour of surface vehicles and submarines using experimental and numerical techniques.

Collaboration

  • Jonathan is currently involved in multiple collaborative research projects with the Defence Science and Technology Group to provide information on the seakeeping and manoeuvring behaviour of various marine vehicles
  • Some of Jonathan's past research collaborations include:
    • Co-CI on an ARC Linkage project with Sea Transport Corporation to investigate novel methods to tranship bulk products
    • Co-CI on an ARC Linkage project with Transport for New South Wales to investigate wave wake
    • Investigation into the operation of catamarans in restricted water with Centre for Marine Science and Technology (CMST), Western Australia
    • Investigation into vessel under keel clearance with O'Brien Maritime Consultants, Melbourne, Australia
    • Improving ship manoeuvring prediction in waves with Kobe University, Japan
    • Predicting ship squat for ship-handling simulation with Mokpo Maritime University, Korea

Awards

  • Walter Atkinson Prize (2016) for the best paper presented at a maritime conference or publication in a journal within Australia;
  • Royal Institution of Naval Architects Calder Prize (2006) for the best paper published by RINA on the subject of small or high-speed craft, by a member under the age of 30;
  • Royal Institution of Naval Architects Ian Telfer Prize (2006) for the best paper published by RINA on the subject of the environment, by a member under the age of 30;
  • Walter Atkinson Prize (2001) for the best paper presented at a maritime conference or publication in a journal within Australia;
  • Permanent International Association of Navigation Congresses Young Author Prize (2001) for the best paper presented at a Coasts and Ports conference by an author under the age of 35.

Current projects

  • Lead Investigator on a collaborative research project with Defence Science and Technology Group titled Naval Platform Behaviour and Performance
  • Lead Investigator on a collaborative research project with Defence Science and Technology Group titled Submarine Hydrodynamics and Manoeuvring
  • Lead Investigator on a collaborative research project with Defence Science and Technology Group titled Mathematical Models for Sea State Representation in Computational Fluid Dynamics
  • Lead Investigator on a collaborative research project with Defence Science and Technology Group titled Submarine Transitional Stability
  • Co-Investigator on a collaborative research project with Defence Science and Technology Group titled Computational Fluid Dynamics Modelling of Experimental Programmes
  • Co-Investigator on a collaborative research project with Defence Science and Technology Group titled Computational Fluid Dynamics-Free Running Model Project
  • Co-Investigator CI on a collaborative research project with Defence Science and Technology Group to develop an underwater collision research facility

Fields of Research

  • Ship and Platform Hydrodynamics (091104)
  • Naval Architecture (091102)
  • Maritime Engineering (091199)
  • Ocean Engineering (091103)
  • Ship and Platform Structures (091105)
  • Special Vehicles (091106)
  • Marine Engineering (091101)
  • Control Systems, Robotics and Automation (090602)
  • Metals and Alloy Materials (091207)
  • Transport Engineering (090507)

Research Objectives

  • Water Transport (880299)
  • Navy (810108)
  • Expanding Knowledge in Engineering (970109)
  • International Sea Freight Transport (excl. Live Animal Transport) (880202)
  • Passenger Water Transport (880204)
  • Oil and Gas Extraction (850203)
  • Port Infrastructure and Management (880205)
  • Emerging Defence Technologies (810104)
  • Coastal Sea Freight Transport (880201)
  • Water Safety (880206)
  • Wave Energy (850508)
  • Nautical Equipment (excl. Yachts) (861303)
  • Defence (810199)
  • Yachts (861305)
  • Fisheries - Wild Caught (830299)
  • Integrated Systems (861604)
  • Organised Sports (950102)
  • Coastal and Estuarine Water Management (960903)
  • Environmentally Sustainable Transport (889899)

Publications

Jonathan’s publications relate to the University's research theme of Marine, Antarctic and Maritime. The focus of the work is ship hydrodynamics, including areas such as manoeuvring and seakeeping behaviour of surface vehicles and submarines.

Total publications

67

Journal Article

(18 outputs)
YearCitationAltmetrics
2018Ashworth Briggs A, Fleming A, Duffy J, Binns JR, 'Tracking the vortex core from a surface-piercing flat plate by particle image velocimetry and numerical simulation', Institution of Mechanical Engineers. Proceedings. Part M: Journal of Engineering for the Maritime Environment pp. 1-16. ISSN 1475-0902 (2018) [Refereed Article]

DOI: 10.1177/1475090218776202 [eCite] [Details]

Co-authors: Ashworth Briggs A; Fleming A; Binns JR

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2018Jin Y, Chai S, Duffy J, Chin C, Bose N, 'Hydrodynamics of a conceptual FLNG system in side-by-side offloading operation', Ships and Offshore Structures pp. 1-22. ISSN 1744-5302 (2018) [Refereed Article]

DOI: 10.1080/17445302.2018.1482041 [eCite] [Details]

Co-authors: Jin Y; Chai S; Chin C; Bose N

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2018Kok Z, Jin Y, Chai S, Denehy S, Duffy J, 'URANS prediction of berthed ship-passing ship interactions', Ships and Offshore Structures, 13, (6) pp. 561-574. ISSN 1744-5302 (2018) [Refereed Article]

DOI: 10.1080/17445302.2018.1429136 [eCite] [Details]

Co-authors: Kok Z; Jin Y; Chai S; Denehy S

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2018Mathew J, Sgarioto D, Duffy J, Macfarlane G, Denehy S, et al., 'An experimental study of ship motions during replenishment at sea operations between a supply vessel and a landing helicopter dock', International Journal of Maritime Engineering, 160, (A2) pp. 97-108. ISSN 1479-8751 (2018) [Refereed Article]

DOI: 10.3940/rina.ijme.2018.a2.427 [eCite] [Details]

Co-authors: Macfarlane G; Denehy S; Cameron A; Eutick N

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2018Jin Y, Chai S, Duffy J, Chin C, Bose N, 'URANS predictions on the hydrodynamic interaction of a conceptual FLNG-LNG offloading system in regular waves', Ocean Engineering, 153 pp. 363-386. ISSN 0029-8018 (2018) [Refereed Article]

DOI: 10.1016/j.oceaneng.2018.01.102 [eCite] [Details]

Co-authors: Jin Y; Chai S; Chin C; Bose N

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2017Jin Y, Chai S, Duffy J, Chin C, Bose N, 'URANS predictions of wave induced loads and motions on ships in regular head and oblique waves at zero forward speed', Journal of Fluids and Structures, 74 pp. 178-204. ISSN 0889-9746 (2017) [Refereed Article]

DOI: 10.1016/j.jfluidstructs.2017.07.009 [eCite] [Details]

Citations: Scopus - 1Web of Science - 1

Co-authors: Jin Y; Chai S; Chin C; Bose N

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2016Jin Y, Chai S, Duffy J, Chin C, Bose N, et al., 'RANS prediction of FLNG-LNG hydrodynamic interactions in steady current', Applied Ocean Research, 60 pp. 141-154. ISSN 0141-1187 (2016) [Refereed Article]

DOI: 10.1016/j.apor.2016.09.007 [eCite] [Details]

Citations: Scopus - 6Web of Science - 7

Co-authors: Jin Y; Chai S; Chin C; Bose N

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2016Jin Y, Duffy J, Chai S, Chin C, Bose N, 'URANS study of scale effects on hydrodynamic manoeuvring coefficients of KVLCC2', Ocean Engineering, 118 pp. 93-106. ISSN 0029-8018 (2016) [Refereed Article]

DOI: 10.1016/j.oceaneng.2016.03.022 [eCite] [Details]

Citations: Scopus - 9Web of Science - 7

Co-authors: Jin Y; Chai S; Chin C; Bose N

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2016Keane JR, Duffy JT, Haase M, Randeni SAT, Hubbert HR, et al., 'Preparing a wave adaptive modular vessel for automation', Royal Institution of Naval Architects. Transactions Part B: International Journal of Small Craft Technology, 158, (B2) pp. 113-121. ISSN 1740-0694 (2016) [Contribution to Refereed Journal]

[eCite] [Details]

Co-authors: Haase M; Randeni SAT; Hubbert HR; Kent RL; Forrest AL

2015Bhosale KA, Duffy JT, 'A case study on stabiliser fin-hull interaction using CFD and model experiments', International Journal of Maritime Engineering, 157, (Part A4) pp. A227-A234. ISSN 1479-8751 (2015) [Refereed Article]

DOI: 10.3940/rina.ijme.2015.a4.333 [eCite] [Details]

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2015Randeni P SAT, Leong ZQ, Ranmuthugala D, Forrest AL, Duffy J, 'Numerical investigation of the hydrodynamic interaction between two underwater bodies in relative motion', Applied Ocean Research, 51 pp. 14-24. ISSN 0141-1187 (2015) [Refereed Article]

DOI: 10.1016/j.apor.2015.02.006 [eCite] [Details]

Citations: Scopus - 15Web of Science - 11

Co-authors: Randeni P SAT; Leong ZQ; Ranmuthugala D; Forrest AL

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2014Denehy S, Duffy JT, Ranmuthugala D, Renilson MR, 'Influence of restricted water on the time domain interaction forces and moment on a berthed ship due to a passing ship', Australian Journal of Civil Engineering, 12, (1) pp. 53-66. ISSN 1448-8353 (2014) [Refereed Article]

DOI: 10.7158/C14-006.2014.12.1 [eCite] [Details]

Citations: Scopus - 1

Co-authors: Denehy S; Ranmuthugala D; Renilson MR

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2014MacFarlane GJ, Bose N, Duffy JT, 'Wave wake: focus on vessel operations within sheltered waterways', Journal of Ship Production and Design, 30, (3) pp. 109-125. ISSN 2158-2866 (2014) [Refereed Article]

DOI: 10.5957/JSPD.30.3.130055 [eCite] [Details]

Citations: Scopus - 2Web of Science - 1

Co-authors: MacFarlane GJ; Bose N

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2014MacFarlane GJ, Duffy JT, Bose N, 'Rapid assessment of boat-generated waves within sheltered waterways', Australian Journal of Civil Engineering, 12, (1) pp. 31-40. ISSN 1448-8353 (2014) [Refereed Article]

DOI: 10.7158/C13-029.2014.12.1 [eCite] [Details]

Citations: Scopus - 1

Co-authors: MacFarlane GJ; Bose N

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2010Thomas G, Duffy J, Lilienthal T, Watts R, Gehling R, 'On the avoidance of parametric roll in head seas', Ships and Offshore Structures, 5, (4) pp. 295-306. ISSN 1744-5302 (2010) [Refereed Article]

DOI: 10.1080/17445300903566199 [eCite] [Details]

Citations: Scopus - 6Web of Science - 4

Co-authors: Thomas G; Lilienthal T

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2007Thomas GA, Duffy JT, MacFarlane GJ, Polmear J, 'Water Stilling for Towing Tank seakeeping experiments', Australian Journal of Mechanical Engineering, 4, (2) pp. 225-223. ISSN 1448-4846 (2007) [Refereed Article]

DOI: 10.1080/14484846.2007.11464528 [eCite] [Details]

Co-authors: Thomas GA; MacFarlane GJ

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2005Gourlay T, Duffy JT, Forbes A, 'The bore produced between the hulls of a high-speed catamaran in shallow water', International Journal of Maritime Engineering, 147 pp. on CD. ISSN 1479-8751 (2005) [Refereed Article]

[eCite] [Details]

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2001Duffy JT, Renilson MR, 'An Investigation into the Effect of Propulsion on Ship Squat', Oceanic Engineering International, 4, (1) pp. 1-12. ISSN 1718-3200 (2001) [Refereed Article]

[eCite] [Details]

Co-authors: Renilson MR

Conference Publication

(49 outputs)
YearCitationAltmetrics
2018Elhanafi A, Duffy J, Macfarlane G, Binns J, Keough SJ, 'Experimental validation of a CFD model for inline force and bow wave height on a vertical cylinder moving in waves', Technical Program for the Thirteenth (2018) ISOPE Pacific-Asia Offshore Mechanics Symposium, 14-17 October 2018, Jeju Island, Korea, pp. 191-197. ISBN 9781880653869 (2018) [Refereed Conference Paper]

[eCite] [Details]

Co-authors: Elhanafi A; Macfarlane G; Binns J

2018Kianejad SS, Enshaei H, Duffy J, Ansarifard N, 'Calculation of restoring moment in ship roll motion through numerical simulation', Proceedings of the 13th International Conference on the Stability of Ships and Ocean Vehicles (STAB 2018), 16-21 September 2018, Kobe, Japan, pp. 429-442. (2018) [Refereed Conference Paper]

[eCite] [Details]

Co-authors: Kianejad SS; Enshaei H; Ansarifard N

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2017Clarke L, MacFarlane G, Penesis I, Duffy J, Matsubara S, et al., 'Safety analysis of a new and innovative transhipping concept: a comparison of two Bayesian network models', Marine Navigation: Proceedings of the 12th International Conference on Marine Navigation and Safety of Sea Transportation (TransNav 2017), 21-23 June 2017, Gdynia, Poland, pp. 347-354. ISBN 978-1-138-29768-5 (2017) [Refereed Conference Paper]

DOI: 10.1201/9781315099088-61 [eCite] [Details]

Co-authors: Clarke L; MacFarlane G; Penesis I; Matsubara S

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2017Furukawa Y, Delefortrie G, Duffy JT, Guillerm P-E, Kim S-H, et al., 'Final Report and recommendations of the Manoeuvring Committee', Proceedings of the 28th International Towing Tank Conference (ITTC), 17-23 September 2017, Wuxi, China, pp. 131-212. ISBN 978-7-5027-9917-5 (2017) [Non Refereed Conference Paper]

[eCite] [Details]

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2017Kok Z, Jin Y, Chai S, Denehy SP, Duffy J, 'URANS prediction of berthed ship - passing ship interactions', Proceedings of the 36th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2017), 25-30 June 2017, Trondheim, Norway, pp. 1-7. ISBN 978-0-7918-5766-3 (2017) [Refereed Conference Paper]

[eCite] [Details]

Co-authors: Kok Z; Jin Y; Chai S; Denehy SP

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2017Binns JR, Ashworth Briggs A, Fleming A, Duffy J, Haase M, et al., 'Unlocking hydrofoil hydrodynamics with experimental results', Proceedings of the 4th International Conference on Innovation in High Performance Sailing Yachts, 28-30 June 2017, Lorient, France, pp. 2-8. (2017) [Non Refereed Conference Paper]

[eCite] [Details]

Co-authors: Binns JR; Ashworth Briggs A; Fleming A; Haase M

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2017Clarke LJ, Macfarlane G, Penesis I, Duffy JT, Matsubara S, et al., 'A risk assessment of a novel bulk cargo ship-to-ship transfer operation using the functional resonance analysis method', Proceedings of the ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, 25-30 June, 2017, Trondheim, Norway, pp. V03BT02A019-1- 9. ISBN 978-0-7918-5766-3 (2017) [Refereed Conference Paper]

DOI: 10.1115/OMAE2017-61535 [eCite] [Details]

Co-authors: Clarke LJ; Macfarlane G; Penesis I; Matsubara S

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2016Denehy SP, Duffy JT, Ranmuthugala D, Renilson MR, 'Squat in berthed ship - passing ship interaction for restricted water cases', Proceedings of the 4th International Conference on Ship Manoeuvring in Shallow and Confined Water with Special Focus on Ship Bottom Interaction, 23-25 May 2016, Hamburg, Germany, pp. 107-114. ISBN 978-3-939230-38-0 (2016) [Refereed Conference Paper]

DOI: 10.18451/978-3-939230-38-0_14 [eCite] [Details]

Co-authors: Denehy SP; Ranmuthugala D; Renilson MR

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2016Jin Y, Chai S, Duffy J, Chin C, Bose N, 'Experimental study of wave induced loads and motions on FLNG in head and oblique sea waves', Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2016), 19-24 June 2016, Busan, South Korea, pp. 1-10. ISBN 978-0-7918-4993-4 (2016) [Refereed Conference Paper]

DOI: 10.1115/OMAE2016-54811 [eCite] [Details]

Citations: Scopus - 1

Co-authors: Jin Y; Chai S; Chin C; Bose N

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2016Jin Y, Chai S, Duffy J, Chin C, Bose N, et al., 'URANS prediction of ship hydrodynamics in head sea waves at zero forward speed with model testing validation', Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2016), 19-24 June 2016, Busan, South Korea, pp. 1-9. ISBN 978-0-7918-4993-4 (2016) [Refereed Conference Paper]

DOI: 10.1115/OMAE2016-54295 [eCite] [Details]

Citations: Scopus - 2

Co-authors: Jin Y; Chai S; Chin C; Bose N

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2016Carette N, Turner T, Mathew J, Sgarioto D, Hallmann R, et al., 'Physical testing of rigid hull inflatable boat and mother ship interactions for launch and recovery simulation validation', Proceedings of the 2016 Launch and Recovery Symposium (ASNE), 16-17 November 2016, MITAGS, Linthicum Heights, MD, USA, pp. 1-9. (2016) [Refereed Conference Paper]

[eCite] [Details]

Co-authors: Denehy S; MacFarlane G

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2015Denehy SP, Duffy JT, Ranmuthugala D, Renilson MR, 'Mooring arrangement design to minimise berthed ship motions due to a passing ship', Proceedings of the Pacific International Maritime Conference 2015, 6-8 October, Sydney Exhibition Centre, Glebe Island, Sydney, pp. 1-15. (2015) [Refereed Conference Paper]

[eCite] [Details]

Co-authors: Denehy SP; Ranmuthugala D

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2015Denehy SP, Duffy JT, Renilson MR, Ranmuthugala D, 'Channel width effects on berthed ship - passing ship interaction from experiments and CFD predictions', Proceedings of the 2015 International Conference on Ship Manoeuvrability and Maritime Simulation, 8-11 September 2015, Newcastle University, United Kingdom, pp. 30-31. (2015) [Refereed Conference Paper]

[eCite] [Details]

Co-authors: Denehy SP; Renilson MR; Ranmuthugala D

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2015Jin Y, Chai S, Duffy J, Chin C, Bose N, 'Scale effects on hydrodynamic manoeuvring force prediction', Proceedings of the 25th International Offshore and Polar Engineering Conference, 21-27 June 2015, Kona, Hawaii, pp. 1577-1582. ISBN 978-1-880653-89-0 (2015) [Refereed Conference Paper]

[eCite] [Details]

Co-authors: Jin Y; Chai S; Chin C; Bose N

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2015Keane J, Forrest A, Battle D, Duffy JT, Johannsson H, et al., 'Homing for autonomous multi-platform docking', Proceedings of the Pacific International Maritime Conference 2015, 6-8 October, Sydney Exhibition Centre, Glebe Island, Sydney, pp. 1-14. (2015) [Refereed Conference Paper]

[eCite] [Details]

Co-authors: Forrest A

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2015Denehy S, Duffy JT, Ranmuthugala D, Renilson MR, 'Restricted water effects on berthed ship - passing ship interaction', Proceedings of the 2015 Coasts and Ports Conference, 15-18 September, Auckland, New Zealand, pp. 1-7. ISBN 9781922107794 (2015) [Refereed Conference Paper]

[eCite] [Details]

Co-authors: Denehy S; Ranmuthugala D; Renilson MR

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2014Quadvlieg F, Delefortrie G, Duffy J, Furukawa Y, Guillerm P, et al., 'Report of the Manouvring Committee', Proceedings of the 27th International Towing Tank Conference, 31 August - 5 September, Copenhagen, Denmark, pp. 1-74. (2014) [Non Refereed Conference Paper]

[eCite] [Details]

2014Renilson MR, Polis C, Ranmuthugala D, Duffy J, 'Prediction of the hydroplane angles required due to high speed submarine operations near the surface', Proceedings of Warship 2014: Naval Submarines & UUVs Conference, 18-19 June 2014, Bath, United Kingdom, pp. 147-155. (2014) [Refereed Conference Paper]

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Co-authors: Renilson MR; Polis C; Ranmuthugala D

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2013Denehy S, Duffy JT, Ranmuthugala D, Renilson MR, 'The effect of berthed ship bow and stern blockage on berthed ship - passing ship interaction', Proceedings of the Coast and Ports 2013 Conference, 11-13 September, Manly, NSW, pp. 1-6. ISBN 978-1-9221-070-53 (2013) [Refereed Conference Paper]

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Co-authors: Denehy S; Ranmuthugala D; Renilson MR

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2013Duffy JT, Denehy S, Ranmuthugala D, Renilson MR, 'The effect of berth blockage on berthed ship - passing ship interaction', Conference Proceedings, 3rd International Conference on Ship Manoeuvring in Shallow and Confined Water, 3-5 June, Ghent, Belgium, pp. 237-247. ISBN 9781909024175 (2013) [Refereed Conference Paper]

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Co-authors: Denehy S; Ranmuthugala D; Renilson MR

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2013Duffy JT, Stringer D, Aberle R, Atkins T, Denehy S, 'The effect of breakwater length on berthed LNG carrier motions and mooring loads', Proceedings of the 2013 coast and ports conference, 11-13 September 2013, Manly, NSW, pp. 1-6. ISBN 978-1-9221-070-53 (2013) [Refereed Conference Paper]

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Co-authors: Denehy S

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2013Leong ZQ, Saad K, Ranmuthugala SD, Duffy JT, 'Investigation into the Hydrodynamic Interaction Effects on an AUV Operating Close to a Submarine', Proceedings of the Pacific 2013 International Maritime Conference, 7-9 October 2013, Darling Harbour, Australia, pp. 1-11. (2013) [Refereed Conference Paper]

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Co-authors: Leong ZQ; Ranmuthugala SD

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2013MacFarlane GJ, Duffy JT, Bose N, 'Assessing boat generated waves within sheltered waterways', Proceedings of the 2013 coasts and ports conference, 11-13 September 2013, Sydney, Australia, pp. 1-6. ISBN 9781922107053 (2013) [Refereed Conference Paper]

[eCite] [Details]

Co-authors: MacFarlane GJ; Bose N

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2013Polis CD, Ranmuthugala SD, Duffy JT, Renilson MR, 'Enabling the prediction of manoeuvring characteristics of a submarine operating near the free surface', Proceedings of the Pacific 2013 International Maritime Conference, 7-9 October 2013, Darling Harbour, Australia, pp. 1-11. (2013) [Refereed Conference Paper]

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Co-authors: Polis CD; Ranmuthugala SD; Renilson MR

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2013Polis CD, Ranmuthugala SD, Duffy JT, Renilson MR, 'Characterisation of near surface effects acting on an underwater vehicle within the vertical plane', Transforming Naval Capabilities - Riding the Next Technology Wave - Proceedings of the International Naval Engineering Conference 2013, 14-16 May 2013, Singapore, pp. 1-5. (2013) [Non Refereed Conference Paper]

[eCite] [Details]

Co-authors: Polis CD; Ranmuthugala SD; Renilson MR

2012Dawson E, Morris B, Duffy J, 'Developing Australia's indigenous marine vehicle manoeuvring analysis and evaluation capability', Proceedings of Pacific 2012 International Maritime Conference, 31 January - 2 February 2012, Sydney, NSW, pp. 554-565. ISBN 978-93-80689-08-1 (2012) [Refereed Conference Paper]

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2012Denehy S, Duffy J, Renilson M, Ranmuthugala D, 'The effect of berthed ship size and berth occupancy on berthed ship-passing ship interaction forces and moments', Proceeding of Joint 19th International Conference on Hydrodynamics in Ship Design and 4th International Symposium on Ship Manoeuvring, 19-21 September, Ilawa, Poland, pp. 70-78. ISBN 978-83-9229-352-1 (2012) [Refereed Conference Paper]

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Co-authors: Denehy S; Renilson M; Ranmuthugala D

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2012Hutchison C, Binns J, Duffy J, Brandner P, 'Model Testing - What is the point? A review of yacht testing and the implications for yacht designers', Proceedings of the 4th International High Performance Yacht Design Conference, 12-14 March 2012, Auckland, New Zealand, pp. 119-125. ISBN 978-1-905040-97-1 (2012) [Refereed Conference Paper]

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Co-authors: Hutchison C; Binns J; Brandner P

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2012Macfarlane GJ, Bose N, Duffy JT, 'Wave wake: focus on vessel operations within sheltered waterways', Proceedings of the 2012 SNAME Annual Meeting & Expo and Ship Production Symposium, 24-26 October 2012, Providence, RI, USA, pp. 27-47. (2012) [Refereed Conference Paper]

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Co-authors: Macfarlane GJ; Bose N

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2012Macfarlane GJ, Bose N, Duffy JT, 'Predicting the effects of boat generated waves within sheltered waterways', Proceedings of the 4th International Conference on Estuaries and Coasts, 8-11 October, Hanoi, Vietnam, pp. 1-8. (2012) [Refereed Conference Paper]

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Co-authors: Macfarlane GJ; Bose N

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2012Mat Saad KA, Ranmuthugala D, Duffy J, Leong ZQ, 'The hydrodynamic effects on an underwater vehicle in close proximity to a larger moving vehicle', Proceedings of the 11th International Naval Engineering Conference and Exhibition, 15-17 May 2012, Edinburgh, UK, pp. 1-13. (2012) [Refereed Conference Paper]

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Co-authors: Mat Saad KA; Ranmuthugala D; Leong ZQ

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2012Duffy JT, Renilson MR, Denehy S, 'Predicting berthed ship - passing ship interaction for different channel geometries', Proceedings of Pacific 2012 International Maritime Conference, 31 January - 2 February 2012, Sydney, NSW, pp. 586-596. ISBN 978-162276120-3 (2012) [Refereed Conference Paper]

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Citations: Scopus - 2

Co-authors: Renilson MR; Denehy S

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2011Duffy JT, Renilson MR, Denehy S, 'The influence of channel geometry on berthed ship-passing ship interaction', Coasts and Ports 2011: Proceedings 20th Australian Coastal and Ocean Engineering Conference, 28 - 30 September 2011, Perth, pp. 6. ISBN 9780858258860 (2011) [Refereed Conference Paper]

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Co-authors: Renilson MR; Denehy S

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2011Duffy JT, Renilson MR, 'The Importance of the form of Time Domain Forces on Berthed Ship Interaction', Proceedings of The Second International Conference on Manoeuvring in Shallow & Confined Waters: Ship to Ship Interaction, May 18 -20 2011, Trondhiem Norway, pp. 107 - 116. ISBN 978-1-905040-83-4 (2011) [Refereed Conference Paper]

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Co-authors: Renilson MR

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2010Letter B, Ranmuthugala S, Duffy J, Tso Y, 'Numerical and experimental analysis of a surfaced submarine in beam seas', PACIFIC '10, 27 -29 January 2010, Sydney, Australia, pp. CD Rom. ISBN 1-877040-78-9 (2010) [Non Refereed Conference Paper]

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Co-authors: Ranmuthugala S

2009Duffy JT, Pike M, 'Investigation into bank effect at port of Townsville', Coasts and Ports 2009, 16 -18 September, Wellington, NZ, pp. on CD. (2009) [Refereed Conference Paper]

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2009Duffy JT, Renilson MR, Thomas GA, 'Simulation of ship manoeuvring in laterally restricted water', International Conference on Ship Manoeuvring in Shallow and Confined Water: Bank effects, 13-15 May, Antwerp, Belgium, pp. 85-94. ISBN 978-1-905040-46-9 (2009) [Refereed Conference Paper]

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Co-authors: Renilson MR; Thomas GA

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2008Thomas GA, Gehling R, Duffy JT, Lilienthal T, Watts R, 'Parametric rolling in head seas - an Australian perspective', The 6th Osaka colloquium on seakeeping and stability of ships : OC 2008 seakeeping & stability, proceedings, 26 - 29 March 2008, Osaka, pp. 312-317. (2008) [Refereed Conference Paper]

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Co-authors: Thomas GA; Lilienthal T

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2006Thomas GA, Duffy JT, MacFarlane GJ, Polmear J, 'Water Stilling for Towing Tank Experiments of High Performance Craft', Proceedings of the 5th International Conference on High Performance Marine Vehicles (Hiper06), 8-10 November 2006, Launceston, Australia, pp. 153-163. (2006) [Refereed Conference Paper]

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Co-authors: Thomas GA; MacFarlane GJ

2005Duffy JT, 'Prediction of bank induced sway force and yaw moment for ship-handling simulation', SimTecT 2005, May, Sydney, pp. on CD. (2005) [Non Refereed Conference Paper]

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2005Duffy JT, 'Prediction of mooring line loads on cape size vessels berthed at Cape Lambert', Coasts and Ports 2005: Coastal Living - Living Coast, September, Adelaide, Australia, pp. 323-327. ISBN 0646451308 (2005) [Refereed Conference Paper]

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2003Duffy JT, Webb G, 'Berthed ship-passing ship interaction: A case study for the port of Newcastle', Coasts and Ports 2003, September, Aukland, New Zealand, pp. on CD. ISBN 0473098326 (2003) [Refereed Conference Paper]

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2003Miao Q, Xia J, Chwang A, Duffy JT, 'Numerical study of bank effects on a ship travelling in a channel', 8th International Conference on Numerical Ship Hydrodynamics, 22-25 September 2003, Busan, Korea, pp. 1-8. (2003) [Refereed Conference Paper]

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2002Duffy JT, 'The Effect of Channel Geometry on Ship Operation in a Port', High Speed Craft Technology and Operation, October, Fremantle, Australia, pp. on CD. (2002) [Non Refereed Conference Paper]

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2002Duffy JT, 'The Effect of Channel Geometry on Ship Operation in a Port', Proceeding of 30th PIANC-AIPCN Congress, September 2002, Sydney, pp. CD. ISBN 1877040096 (2002) [Refereed Conference Paper]

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2001Duffy JT, Renilson MR, 'The effect of channel design on ship operation in a port', Proceedings of Coasts and Ports Conference, 26-28 September (2001) [Refereed Conference Paper]

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Co-authors: Renilson MR

2000Duffy JT, Renilson MR, 'The Hydrodynamics of Berth Design', Proceedings from Maritime Structures 2000, November, Sydney, pp. on CD. (2000) [Refereed Conference Paper]

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Co-authors: Renilson MR

1999Hatch T, O'Brian T, Berwick B, Wood L, Duffy JT, et al., 'Ship-Bank Interaction Effects: A Case Study - Port of Townsville', Proceedings of the 14th Australasian Coastal and Ocean Engineering Conference and the 7th Australasian Port and Harbour Conference, 14-16 April, Perth, Austrlaia, pp. 268-271. ISBN 0858256975 (1999) [Refereed Conference Paper]

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Co-authors: Renilson MR

1998Duffy JT, Renilson MR, 'The Effect of Bank Geometry on the Simulation of Ship Manoeuvring in Restricted Water', Proceedings of the International Conference Safe Navigation Beyond 2000, 2-3 September, Gdynia, Poland, pp. on CD. ISBN 8386703792 (1998) [Refereed Conference Paper]

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Co-authors: Renilson MR

Grants & Funding

Jonathan’s links with industry stakeholders have facilitated ARC Linkage funding and a range of contract research projects (in collaboration with other NCMEH researchers). Jonathan has also received funding through research collaborations with Defence Science and Technology Group.

Funding Summary

Number of grants

46

Total funding

$6,268,058

Projects

Underwater Collision Research Facility - Phase II (2018 - 2020)$700,000
Description
Establishment of an Underwater Collision Research Facility for Future Submarine Program to produce empirical modelling for different types of underwater collisions.
Funding
Defence Science and Technology Group ($700,000)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Ojeda Rabanal RE; Duffy JT
Period
2018 - 2020
Naval Platform Behaviour and Performance (2018 - 2020)$229,381
Description
The project is divided into 3 core areas: (1) hydrodynamic loading of a surfaced vessel, (2) submarine performance and (3)propulsion modelling. The aims of these projects are included in the Research Agreement.
Funding
Defence Science and Technology Group ($229,381)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; MacFarlane GJ; Denehy S; Ranmuthugala SD
Period
2018 - 2020
Computational Fluid Dynamics Modelling of Experimental Programmes (2018 - 2020)$281,860
Description
This agreement will research, develop and improve the Computational Fluid Dynamics Large Captive and Free Running Modelsof the BB2 and other unclassified geometries, with validation against physical experimental data from MARIN, QinetiQ UK, and other facilities.
Funding
Defence Science and Technology Group ($281,860)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Binns JR; Leong ZQ; Duffy JT; Kim H
Period
2018 - 2020
Naval Platform Performance (2017 - 2018)$112,539
Description
The project is divided into three core areas: 1) hydrodynamic loading of a surfaced vessel; 2) performance of a submarine operating on the surface, and 3) submarine propulsion inflow modelling. The aims of these project are included in the research agreements.
Funding
Defence Science and Technology Group ($112,539)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; MacFarlane GJ; Denehy S; Turner T; Ranmuthugala SD
Period
2017 - 2018
Submarine Hydrodynamics and Manoeuvring (2017 - 2019)$671,736
Description
The project will focus on developing Computational Fluid Dynamic (CFO) simulations to predict the hydrodynamic coefficientsand the behaviour of submarines under a range of conditions and configurations. This will include bare and appended submarine hull forms, deep, near surface, and on surface operations, submarine manoeuvres, and appendages. These simulation models are to be validated and supplemented through captive scaled model experiments conducted in AMC's towing tank using the Horizontal Planar Motion Mechanism (HPMM).
Funding
Defence Science and Technology Group ($671,736)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; Leong ZQ; MacFarlane GJ; Binns JR; Wright Gregory; Ranmuthugala SD
Period
2017 - 2019
Mathematical models for sea state representation in computational fluid dynamics (2017 - 2018)$201,212
Description
DST have been developing a computational fluid dynamics model which is capable of predicting the wake generated by a vertical surface piercing cylinder moving at a predetermined speed through a free surface. It is desirable to modify the computational model in order to predict the wake from a cylinder moving through a free surface that better represents a range of sea states as would be experienced in a real ocean environment. The aim of this project is to enable the existing CFD model to be upgraded so as to include realistic sea states and to validate the addition of waves to the simulated wake model against towing tank data collected from experiments of a vertical cylinder travelling through waves.
Funding
Defence Science and Technology Group ($201,212)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; MacFarlane GJ; Binns JR; Ranmuthugala SD
Period
2017 - 2018
Computational Fluid Dynamics - Free Running Model Project (2017 - 2018)$88,301
Description
This project will improve the BB2 CFO FRM model currently being developed jointly by AMC and DST, with validation againstphysical experimental data from MARIN. The validated CFO model will then be converted to a format that is compatible to the software operational environment of the Hydroacoustics STC at DST Melbourne.
Funding
Defence Science and Technology Group ($88,301)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Binns JR; Leong ZQ; Duffy JT; Kim H
Period
2017 - 2018
Berthed ship-passing ship interaction study (2017)$170,100
Description
The aim of this study is to investigate the ship to ship interaction between a passing ship and a ship berthed for specific site conditions at the Port of Newcastle. The interaction forces created by the passing ship will influence the motions and mooring loads of the berthed vessel for the loading and/or discharging of bulk carriers. By quantifying these motions and loads, and comparing them against suitable criteria, the acceptable conditions for ship operations can be determined. The motions and mooring loads on the berthed ship due to the passing ship for the site specific conditions are determined for numerical (CFD) predictions.
Funding
Port of Newcastle Operations Pty Ltd ($170,100)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; Denehy S; Woodward MD; MacFarlane GJ
Year
2017
Slamming load measurement techniques using pressure sensors and hydro-elastic segmented models (2016)$120,000
Description
A collaborative project is proposed to gain a better understanding into the use of piezo-resistive pressure sensors and hydro-elastic segmented models to measure slamming loads for naval vessels. This will involve the design and construction of a hydro-elastic segmented model of a generic destroyer hull-form. Each segment of this flexible model will be instrumented with load cells to record shear forces and bending moments, accelerometers to measure vertical acceleration and flexural response, and pressure sensors to capture the hydrodynamic loading on bow section.
Funding
Defence Science and Technology Group ($120,000)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; MacFarlane GJ; Denehy S
Year
2016
Rigid hull inflatable boat seakeeping during towing and lifting operations (2016)$90,000
Description
collaborative project is proposed to investigate the seakeeping behaviour of a Rigid Hull Inflatable Boat (RHIB) during a variety of towing and lifting evolutions commensurate with L&R operations. A series of systematic tests be undertaken in the towing tank to characterise the seakeeping behaviour of a RHIB when under tow and raised for a variety of forward speeds (4-10 knots), loading conditions (light and heavy) and sea conditions (wave height and period). Several tow connection options (stag horn, bow ring, short and long tow lines) and lifting arrangements (short and long lifting lines) will be explored to ascertain their influence on the dynamic behaviour of the RHIB during L&R-type operations.
Funding
Defence Science and Technology Group ($90,000)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; MacFarlane GJ; Denehy S
Year
2016
Underwater Collision Research Facility (2016 - 2017)$110,000
Description
Design of an Underwater Collision Research Facility for Future Submarine Program to produce empirical modelling for different types of underwater collisions.
Funding
Defence Science and Technology Group ($110,000)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Ojeda Rabanal RE; Duffy JT
Period
2016 - 2017
Vessel Vessel Interaction Phase 2 (2016)$46,000
Description
A multi-phase collaborative project has been proposed to investigate vessel-vessel interaction. Phase 1 of this project focussed onhydrodynamic performance of the LHD during Replenishment at Sea (RAS) operations and has now been completed. The next phase of the project will focus onhydrodynamic performance of vessels during RAS operations involving the Cantabria Replenishment Oiler. The primary aims of this second phase are to (a) construct asuitable scale model of the Cantabria, (b) develop and commission modifications to multi-vessel test rig in the AMC UTAS Model Test Basin (MTB). These modificationswill facilitate the use of the Qualisys non-contact motion measurement system to quantify the motions of the two ship models during RAS experiments. The current workprogram will conclude with a limited number of commissioning RAS trials of the complete system.
Funding
Defence Science and Technology Group ($46,000)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; MacFarlane GJ; Sgarioto D; Turner T
Year
2016
Mooring analysis for the Air Warfare Destroyer (2016)$18,000
Description
AMC predicted, through numerical modelling, the motions and mooring line and fender loads for two berthed Air Warfare Destroyersdue to the effect of wind and current. These predictions were compared against suitable safety criteria and manufacturersspecifications.
Funding
Air Warfare Destroyer Alliance ($18,000)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; Denehy S
Year
2016
Hydrodynamic performance of novel multihull vessels (2016)$42,420
Description
AMC was requested to develop and conduct a series of scale model experiments to quantify the calm water performance of threenovel multi-hulled vessels: a fast catamaran, an expedition catamaran and a trimaran. This required the conduct of experiments in theAMC towing tank and modifications to each of the three scale models. To aid the research, tests were also undertaken to quantify theperformance of the centre hull of the trimaran as a monohull. This project required the conduct of applied research to conduct anoriginal series of experiments on several dedicated scale models of multi-hulled vessels.
Funding
LOMOcean Design ($42,420)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Year
2016
Hydrodynamic performance of a Motor Yacht (2016)$39,060
Description
AMC was requested to develop and conduct a series of scale model experiments to quantify the calm water performance andseakeeping ability for a monohull motor yacht. This required the conduct of scale model experiments in the AMC towing tank for arange of speeds and load conditions in both calm water and a variety of wave conditions (regular waves and irregular wave spectra) .
Funding
Riviera Australia Pty Ltd ($39,060)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Year
2016
Postdoctoral on submarine manoeuvring (2015 - 2016)$187,000
Description
This is a postdoctoral position in submarine manoeuvring modelling. The Postdoc will undertake computational fluid dynamic simulations and model scale experiments to support the prediction of manoeuvring characteristics of generic submarine geometry.
Funding
Defence Science and Technology Group ($187,000)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Ranmuthugala SD; Duffy JT; Binns JR; MacFarlane GJ; Leong ZQ
Period
2015 - 2016
Study into Vessel-Vessel Interaction (Phase 1) (2015)$115,000
Description
A multi-phased collaborative project is proposed to investigate vessel-vessel interaction. The focus of Phase 1 of this project is the hydrodynamic performance of the LHD during Replenishment at Sea (RAS) operations. The primary aims of this initial phase are to (a) construct a suitable scale model of the LHD, (b) characterise the roll decay characteristics of the scale model LHD and (c) to develop and commission new equipment that will facilitate scale model experiments to quantify the motions of the LHD and replenishment ship whilst undergoing Replenishment at Sea operations. This will require modifications to the existing ship model towing carriage in the UTAS/AMC Model Test Basin to enable multi vessel testing in both head and oblique seas. The current work program will conclude with a limited number of commissioning trials of the complete system and initial RAS tests, from which the Project Team will develop a suitable test matrix to be performed in Phase 2 of the project.This research will develop a novel technique to measure motions and loads on vessels during replenishment at sea operations in both head and oblique seas.
Funding
Defence Science and Technology Group ($115,000)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; MacFarlane GJ; Denehy S
Year
2015
Hydrodynamic performance of a stern landing vessel (2015)$22,200
Description
AMC was requested to develop and conduct a series of scale model experiments to quantify the calm water performance of a novel stern landing vessel. This required the conduct of experiments in the AMC towing tank and modifications to the hull model. Analysis of the raw experimental data was undertaken by AMC personnel. A written report was provided which included details of the test program, model particulars, facility and instrumentations details, experimental test rig and procedures, video and photographs, results and discussion. This project required the conduct of applied research to conduct an original series of experiments on a dedicated scale model of a novel stern landing vessel.
Funding
Sea Transport Corporation ($22,200)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Matsubara S; Duffy JT
Year
2015
Berthed ship-passing ship interaction study for Hay Point (2015)$108,960
Description
The aim of this study is to investigate the ship to ship interaction between a passing ship and a ship berthed for the specific site conditions at Hay Point. The interaction forces created by the passing ship will influence the motions and mooring loads of the berthed vessel for the loading and/or discharging of bulk carriers. By quantifying these motions and loads, and comparing them against suitable criteria, the acceptable conditions for ship operations can be determined.The motions and mooring loads on the berthed ship due to the passing ship for the site specific conditions are determined through a combination of physical scale model experiments and numerical predictions.
Funding
BHP Billiton Mitsubishi Alliance ($108,960)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; Denehy S; MacFarlane GJ
Year
2015
Marine vessel wave wake: Ferry operations in sheltered waterways (2015 - 2018)$265,942
Description
This project aims to address one of the biggest risk factors when commencing any new ship/boat operations by ensuring the waves that the new vessels generate are minimised, thereby reducing the impact on other users of the waterway or damage to the surrounding infrastructure or environment. The intended outcome is a new method for predicting this complex phenomenon that will be a significant advance on conventional technologies. Once developed, using model and full scale experimentation, the method will allow more comprehensive and accurate assessments of any proposed ferry operation to be made in a timely manner during early planning stages.
Funding
Australian Research Council ($192,767)
Scheme
Grant-Linkage Projects Round 1
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Period
2015 - 2018
Grant Reference
LP150100502
Manoeuvring properties of a surfaced submarine (2014)$158,100
Funding
Defence Science and Technology Group ($158,100)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; Denehy S; MacFarlane GJ; Ranmuthugala SD
Year
2014
Motions of bulk carrier ships moored in open water berths (2014)$88,000
Description
The aims of this study are to assess the viability of open water berths for the loading and/or discharging of bulk carriers. This requires the motions of berthed ships at an open water berth and associated mooring loads due to the environmental effect of wind, irregular waves and current to be predicted and the results compared against suitable criteria.The motions and mooring loads on a Cape class ship with a generic mooring configuration (based on past research conducted by AMC)are predicted using numerical simulations. For this numerical study the wave direction, height and period that results in the safetycriteria being exceeded will be identified based on a 12 hour irregular seaway sample. The wind and wave direction will be coupled to produce the likely worst case scenarios. Five wind and wave directions are analysed. Additionally, for a selected case the effect of wind and current strength will be investigated. The motions and mooring loads are compared to Permanent International Association of Navigation Congress (PIANC) and Oil Companies International Marine Forum (OCIMF) criteria to determine whether it is viable to perform loading and/or discharging operations of bulk carriers at open water berths.
Funding
GHD Pty Ltd ($88,000)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; Denehy S; MacFarlane GJ
Year
2014
A comparative study into the calm water performance of two hull forms (2014)$40,800
Description
The aims of this study were to make significant improvements to the calm water performance of a high-speed monohedron hull form when operating at speed in calm water. This involved the manufacture of a scale model of the existing hull form and performing a series of benchmark experiments in the AMC Towing Tank. Suggestions of modifications to the hull form that could provide potential improvements were provided by several sources, including the industry participants and hydrodynamicists from AMC and external organisations. The revised hull form had significant differences in hull shape to the original. A second physical model was constructed of the revised hull form and a further series of experiments were performed, including an investigation of dynamic effects from the use of a pair of interceptors. It was found that these hull form changes resulted in significant improvements in powering performance.
Funding
Southerly Design ($40,800)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Year
2014
HPMM Manoeuvring Research and Structural Analysis Capability (2013)$115,000
Funding
Defence Science and Technology Group ($115,000)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Ojeda Rabanal RE; Ranmuthugala SD; Duffy JT; Denehy S
Year
2013
Hydrodynamic performance of a SOLAS passenger ship for Tokelau (2013)$27,500
Description
The project involves the development and conduct of a series of scale model experiments to quantify the calm water and head sea performance of a proposed SOLAS passenger vessel to service the South Pacific island of Tokelau.
Funding
Stronach & Associates Pty Ltd ($27,500)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Year
2013
Hydrodynamic performance comparison of a trimaran, catamaran and stabilised monohull (2013)$29,880
Description
This is an investigation into the comparative performance of several vessels when operating in calm water and in specific seaways. Design and scale model experiments, analysis, presentation, and a written report will be produced.
Funding
Sea Transport Solutions ($29,880)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Year
2013
The ship within a ship: new-generation transhipment of bulk ore products (2013 - 2015)$420,000
Description
With Australia's mining boom already reaching its high point, the industry will increasingly rely on cost-efficiency to compete with emerging sources around the world. The project will develop one of the most significant advances in the technology of bulk ore transhipment in decades. The concept of a floating harbour transhipper involves a large covered floating storage vessel incorporating a well dock that interfaces with a feeder vessel. This would allow Australia's mining export industry, particularly smaller companies in remote locations, to adopt much smaller harbours, reduce capital expenditure on dredging and infrastructure, and boost environmental sustainability.
Funding
Australian Research Council ($270,000)
Scheme
Grant-Linkage Projects Round 1
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Bose N; Penesis I; Duffy JT
Period
2013 - 2015
Grant Reference
LP130100962
Ship Interaction and Ship Mooring Study (2012)$318,360
Description
This project aimed to predict motions of berthed ships in a proposed shipping channel and associated mooring loads due to the effect of a passing ship and compare the predictions to suitable criteria. The work was undertaken in two stages. In Stage I the interaction forces experienced by berthed ships due to the effect of a passing ship were measured using model scale experiments in the Model Test Basin. An innovative test rig and new procedures were developed to obtain new knowledge on the novel berth arrangements. In Stage 2 the berthed ship motions, mooring line loads and fender loads were predicted using numerical simulations. These accounted for the hydrodynamic and mooring forces and moments acting on the hull. The limiting passing vessel speeds were identified for a range of ship sizes, berth occupancy scenarios and water depths. The new knowledge arising from this work was summarised in a comprehensive report, which included: I) Study objectives 2) Project methodology 3) Input parameters for the prediction of berthed ship motion and mooring loads 4) Details concerning the experimental modelling techniques 5) Details concerning the numerical simulation techniques 6) Maximum and minimum berthed ship motions, maximum mooring line loads and maximum fender loads. It addressed the research question: What is the influence of passing ship velocity, channel and berth pocket geometry, berthed ship size, passing ship size and berth pocket occupancy on interaction forces and moments due to a passing ship. In turn, how does this influence berthed ship motions and mooring loads for the specific scenarios faced? Its innovation lay in conducting novel physical experiments to obtain previously unavailable data on the influence of a range of variables on passing ship interaction forces and moments and berthed ship motions and mooring loads.
Funding
Newcastle Port Corporation ($318,360)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; Denehy S; MacFarlane GJ
Year
2012
Research and Physical Experiments to Investigate Marine Renewable Energy Concepts (2012 - 2013)$26,620
Description
This project developed and conducted a comprehensive series of scale model experiments on a novel near-shore bentduct type OWe. Basic analysis of the raw experimental data was also undertaken. Written reports were provided which included details of the test program, model particulars, facility and instrumentations details, experimental test rig and procedures, video and photographs. This project required the conduct of applied research to conduct an original series of experiments on a number of scale models of a novel owe wave energy converter. It addressed the research question: What are the loads experienced by a near-shore bent-duct type OWe when subject to large storm waves? In addition, what is the efficiency of this specific wave energy converter, and how does this vary with changes to orifice damping, water depth and incident wave conditions? Innovation was in conducting a novel series of physical experiments to obtain previously unavailable data on the efficiency of a novel near-shore wave energy converter.
Funding
OceanLinx ($26,620)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Fleming AN; Duffy JT
Period
2012 - 2013
Motions of a dive support vessel in a seaway (2012)$57,240
Description
This project involved developing and conducting a comprehensive series of scale model experiments to quantify the motions of a proposed dive support vessel when travelling at speed and moored in a seaway. This required the conduct of experiments in both towing tank and model test basin, using specialist test rigs. Analysis of the raw experimental data was also undertaken. A written report was provided which included details of the test program, model particulars, facility and instrumentations details, experimental test rig and procedures, video and photographs, results and discussion. This project required the conduct of applied research to conduct an original series of experiments on a dedicated scale model of a proposed dive support vessel. It addressed the research question: What are the motions experienced by a dive support vessel when subject to a variety of incident wave conditions under two scenarios: while travelling at speed, and when moored using a 4-point mooring system (directly above the archaeological dive site)? Its innovation lay in the conduct of a novel series of physical experiments to obtain previously unavailable data on the motions of a proposed dive support vessel for multiple operational scenarios.
Funding
Incat Crowther ($57,240)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Year
2012
The re-righting of a capsized pilot boat (2012)$6,660
Description
This project developed and conducted a series of scale model experiments to investigate the re-righting of a capsized pilot boat. This required the conduct of experiments in the AMC towing tank using a specially built scale model, including all superstructure and topsides. Analysis of the experimental data was undertaken by AMC personnel. A written report was provided which included details of the test program, model particulars, facility and instrumentations details, experimental test rig and procedures, video and photographs, results and discussion. This project required the conduct of applied research to conduct an original series of re-righting experiments on a dedicated scale model of pilot boat. It addressed the following question: How do the mass properties and above-water shape of a pilot boat affect its re-righting ability in calm water and in a seaway?
Funding
Norman R Wright & Sons ($6,660)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Year
2012
Calm water performance of a novel barge hull form for high-speed operation (2012)$22,279
Description
This project involved developing and conducting a series of scale model experiments to quantify the calm water performance of a novel barge-type hull form for high-speed operation. This required the conduct of experiments in the towing tank and modifications to the hull model. Analysis of the raw experimental data was undertaken. A written report was provided which included details of the test program, model particulars, facility and instrumentations details, experimental test rig and procedures, video and photographs, results and discussion. This project required the conduct of applied research to conduct an original series of experiments on a dedicated scale model of a novel high-speed barge. It addressed the research question: How do changes in the loading conditions and modifications to the hull form affect the powering, sinkage and trim of a novel barge when travelling at a range of speeds. Its innovation lay in the conduct of a novel series of physical experiments to obtain previously unavailable data on the calm water performance of a novel barge hull form for high-speed operation.
Funding
Global Marine Design ($22,279)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Year
2012
Hydrodynamics of new ferry terminals for the Brisbane River during flood events (2012 - 2013)$42,770
Description
This project developed and conducted a series of scale model experiments to quantify the loads experienced by the piers that will anchor several new designs of ferry terminals proposed for the Brisbane River. Of particular interest are the extreme loads expected during major flood events. Work involved the design of a suitable test rig and programme of experiments, construction of a series of physical models of various different floating terminals. The experiments were conducted in the AMC towing tank and analysis of the raw experimental data was performed by AMC personnel. A written report, including details of the test program, model particulars, facility and instrumentations details, experimental test rig and procedures, video and photographs, results and discussion, was provided. This project required the conduct of applied research to an original series of experiments on dedicated scale models of the proposed new designs of river ferry terminals. It addressed the research question: What are the loads experienced by the piers designed to anchor various new designs of ferry terminals proposed for the Brisbane River? It conducts a novel series of physical experiments to obtain previously unavailable data on the loads due to flood conditions on a series of river ferry terminals.
Funding
Aurecon Australia ($42,770)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Period
2012 - 2013
Calm water performance of a novel ROPAX catamaran (2012)$18,120
Description
AMC was requested to develop and conduct a series of scale model experiments to quantify the calm water performance of a novel ROP AX catamaran. This required the conduct of experiments in the AMC towing tank and modifications to the hull model. Analysis of the raw experimental data was undertaken by AMC personnel. A written report was provided which included details of the test program, model particulars, facility and instrumentations details, experimental test rig and procedures, video and photographs, results and discussion. This project required the conduct of applied research to conduct an original series of experiments on a dedicated scale model of a novel ROP AX catamaran. It addressed the research question: How do changes in the loading conditions and modifications to the hull form affect the powering, sinkage and trim of a novel ROP AX catamaran when travelling at a range of speeds? Its innovation lay in the conduct of a novel series of physical experiments to obtain previously unavailable data on the calm water performance of a novel ROP AX catamaran hull form for operation over a range of speeds.
Funding
Sea Transport Solutions ($18,120)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT; Penesis I
Year
2012
An Investigation into the Motions of a Landing Craft Operating in Both Deep and Shallow Water (2011 - 2012)$171,181
Funding
Defence Science and Technology Group ($171,181)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Period
2011 - 2012
A Characterisation of the Hydrodynamic Forces in an Underwater Two Body Interaction Scenario (2011 - 2013)$20,000
Funding
Defence Science and Technology Group ($20,000)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Ranmuthugala SD; Duffy JT
Period
2011 - 2013
Ship Interaction and Ship Mooring Study (2011)$333,600
Funding
Newcastle Port Corporation ($333,600)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; MacFarlane GJ
Year
2011
Resistance Tests, Powering Estimates and Seakeeping Tests for the LCH-R for Directorate of Navy Platform Systems (2011)$51,360
Funding
Department of Defence ($51,360)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Year
2011
Hydrodynamic Testing on an OWC Model (2011)$19,320
Funding
OceanLinx ($19,320)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Year
2011
Surface streamlines and CFD - changing the way engineers predict hydrodynamic energy requirements (2011)$20,662
Funding
University of Tasmania ($20,662)
Scheme
Grant-Institutional Research Scheme
Administered By
University of Tasmania
Research Team
Binns JR; Duffy JT
Year
2011
Model tests on a self-propelled model of a landing craft in shallow water (2010)$20,000
Funding
Defence Science and Technology Group ($20,000)
Scheme
Consultancy
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Year
2010
Research and Physical Experiments to Investigate Marine Renewable Energy Concepts (2010)$196,500
Funding
OceanLinx ($196,500)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Year
2010
A Preliminary Investigation into the Relative Motions of a Novel Floating Harbour Transhipper and Shuttle Vessel (2010)$57,840
Funding
Sea Transport Solutions ($57,840)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
MacFarlane GJ; Duffy JT
Year
2010
Powering of Medium Speed Catamarans in Shallow and Deep Water (2009 - 2010)$54,500
Funding
Revolution Design Pty Ltd ($54,500)
Scheme
Contract Research
Administered By
University of Tasmania
Research Team
Duffy JT; Thomas GA; MacFarlane GJ
Period
2009 - 2010
Investigation into the Influence of Waves on Berthed Ship Motions (2008)$13,855
Funding
Australian Maritime College ($13,855)
Scheme
Grant-Institutional Grant Scheme
Administered By
University of Tasmania
Research Team
Duffy JT
Year
2008
Investigation into Berthed Vessel Motions and Mooring Lines (2007 - 2008)$318,200
Funding
Rio Tinto Iron Ore Expansion Projects ($318,200)
Scheme
Consultancy
Administered By
University of Tasmania
Research Team
Duffy JT
Period
2007 - 2008

Research Supervision

Current

9

Completed

5

Current

DegreeTitleCommenced
PhDDeveloping a Desktop Prediction of Berthed Ship-passing Ship Interaction Forces and Moments2012
PhDAn Investigation of the Hydrodynamic Issues for a Novel Transhipment Concept2014
PhDThe Floating Harbour Transhipper: Well dock hydrodynamics of a novel transhipment concept2014
MastersVentillation behaviour on T-foil hydrofoils2014
PhDFree Surface Interaction of a 'T-Foil' Hydrofoil2016
PhDMarine Vessel Wave Wake: Vessel Operations in Sheltered Waterways2016
PhDBetter Understanding of Dynamic Stability Through Ships Motion Responses2017
PhDNumerical Investigation of Berthed Ship: Swinging ship interaction2017
PhDHolographic Augmented Reality to Enhance Ship Pilotage and Docking Manoeuvers2018

Completed

DegreeTitleCompleted
PhDHydrodynamic Interaction During Tug-Ship Operations
Candidate: Buddhika Nirman Jayarathne Sembukutti Vidanelage
2018
PhDPredictions of Hydrodynamics of a Conceptual FLNG-LNG Offloading System
Candidate: Yuting Jin
2018
PhDNumerical Calculation of Manoeuvring Coefficients for Modelling the Effect of Submarine Motion Near the Surface
Candidate: Christopher David Polis
2018
PhDThe Hydrodynamic Effects on a Smaller Underwater Body in Close Proximity to a Larger Moving Body
Candidate: Khairul Anuar Mat Saad
2016
PhDMarine Vessel Wave Wake: Focus on Vessel Operations within Sheltered Waterways
Candidate: Gregor John Macfarlane
2012