Areas of expertise
Florent Trarieux started his higher education in the
Merchant Marine Academy in Nantes (France) but then eventually graduated with a
Masters in theoretical Physics. He joined University College London in 1998
where he pursued the MSc in Ocean & Subsea Engineering under the
supervision of Prof Minoo Patel for his project on the Cal Dive International
Q4000 semi-submersible platform which compared the theoretical response against
model testing of the vessel fitted with the patented Motion Suppression Tanks
invented by Prof Patel. This was followed by doctoral research with Dr Geoff
Lyons in the area of vortex-induced vibrations (VIV) of subsea risers and
umbilicals (BP Foinaven) which lead to a PhD in Sept 2004 after having been
involved in the STRIDE program which aimed at comparing some of the most widely
used VIV models in the offshore oil industry.
He joined Cranfield University in August 2003 as a Post-Doctoral researcher to create the Offshore Engineering & Naval Architecture Group with Prof Minoo Patel (former Head of School of Engineering) to develop research activities related to novel configuration of high speed marine vehicles having aero and hydrodynamic effectors. He was appointed as a Lecturer in January 2007.
He has contributed largely along with his colleagues in expanding Cranfield University's presence in marine renewable energy R&D through industrial projects. He has been the coordinator for Cranfield University of a DTi funded project (2006-2008) to investigate the performance and layout of a wave energy converter based on the Oscillating Water Column Technology for which he developed a "wave to wire" mathematical model and undertook a series of reduced scale testing in the Wave Tank of IFREMER-Brest. He has been involved in the hydrodynamic assessment and structural design of the Tidal Energy Converter "DeltaStream" along with Tidal Energy Ltd since February 2007 in which he coordinated the design stages of the turbine, the hydrodynamic assessment and the structural design of the supporting frame. He obtained a grant from the Carbon Trust in 2009 for the experimental verification of power shedding turbine technology and interaction between tidal stream turbines in close arrays. He was in charge of the model testing program for DeltaStream from the beginning and particularly in the frame of a major project funded by the Welsh European Funding Office (WEFO) which outcome has been the deployment of a first full scale prototype in 2015 in Ramsey Sound.
Since 2009, alongside managing industrial contracts, Dr Trarieux has managed the design, construction and instrumentation of a wave and towing tank in Cranfield University in the newly created Ocean Systems Test Laboratory specially designed for low cost testing at the early stage of marine renewable projects. The laboratory now offers consultancy to a wide range of clients from small companies to large corporations in experimental marine hydrodynamics.
Before moving to the UK, he has been involved in the construction of high speed sailing yachts in advanced materials. He was a keen sailor for many years in coastal and offshore racing.
Current activitiesFlorent runs the Ocean Systems Test Laboratory and provides a fully integrated range of services in Experimental Hydrodynamics in the following areas:
Marine Renewable Energy Concepts (wave, tidal and offshore wind)
- Power Take Off Performance Testing
- Response of supporting structures in wave and current.
- Sailing yachts
- Aerodynamically Alleviated Marine Vehicles
I can advise on all stages of a rigorous model test campaign (from proof of concept to prototype stage) in our in-house wave-towing tank or in suitable test facilities worldwide:
- Test planning strategy
- Test facility selection
- Model design and manufacture
- Test set-up
- Data Acquisition
- Data Processing
- Professional video recording (including underwater).
ClientsSmall companies to large corporations worldwide.
Articles In Journals
- Gervelas R, Trarieux F & Patel M (2011) A time domain simulator for an oscillating water column in irregular waves at model scale, Ocean Engineering, 38 (8-9) 1007-1013.
- Gervelas R, Trarieux F & Patel M (2011) A time-domain simulator for an oscillating water column in irregular waves at model scale, Ocean Engineering, 38 (8-9) 1007-1013.
- Collu M, Patel MH & Trarieux F (2010) The longitudinal static stability of an aerodynamically alleviated marine vehicle, a mathematical model, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 466 (2116) 1055-1075.
- Sato M, Patel MH & Trarieux F (2008) Static displacement and elastic buckling characteristics of structural pipe-in-pipe cross-sections, Structural Engineering and Mechanics, 30 (3) 263-278.
- Trarieux Florent, Lyons G J & Patel Minoo H (2006) Investigations with a bandwidth measure for fatigue assessment of the Foinaven dynamic umbilical including VIV, Engineering Structures, 28 (12) 1671-1690.
- Brennan F, Falzarano J, Gao Z, Landet E, Le Boulluec M, Whan Rim C, Sirkar J, Sun L, Suzuki H, Thiry A, Trarieux F & Ming Wang C (2012) Offshore Renewable Energy. In: 18th International Ship and Offshore Structures Congress, 2012 (ISSC), Rostock, 10 September 2012.
- Collu M, Williams A, Williams A, Patel M & Trarieux F (2009) Aerodynamically Alleviated Marine Vehicles (AAMV): Development of a Mathematical Framework to Design High Speed Marine Vehicles with Aerodynamic Surfaces. In: 9th Internationnal Conference on High Performance Marine Vessels, 2009 (HPMV 09), Shanghai, 17 April 2009.
- Freeman C, Amaral Teixeira J, Trarieux F & Ayre R (2009) Design of a Gravity Stabilised Fixed Pitch Tidal Turbine of 400kW. In: 8th European Wave and Tidal Energy Conference, Uppsala, 7 September 2009.
- Collu M, Patel MH & Trarieux F (2008) A mathematical model to analyze the static stability of hybrid (aero-hydrodynamically supported) vehicles. In: 8th Symposium on High Speed Marine Vehicles, HSMV 2008, Naples, 21-23 May 2008.
- Collu M, Patel M & Trarieux F (2007)
A unified mathematical model for high speed hybrid (air and waterborne) vehicles
- Lyons GJ, Trarieux F, Vaz M, Patel MH, Garnham S, Cook HH & Sworn A (2006) Developments in assessment of fluid loading regime contributions to fatigue for deepwater flexibles. In: Offshore Technology Conference, Houston, Texas, 1 May 2006.
- Trarieux F, Lyons GJ, Vaz M, Patel MH & Garnham S (2006) Investigation of the influence of waves and vessel motions on the VIV response of flexible risers and umbilicals from a fatigue damage perspective. In: 25th International Conference on Offshore Mechanics and Arctic Engineering Conference (OMAE 2006), Hamburg, 4-9 June 2006.
- Trarieux F & Lyons GJ (2005) Fatigue damage assessment using a bandwidth parameter for VIV applied to the Foinaven dynamic umbilical. In: 24th International Conference on Offshore Mechanics and Arctic Engineering, ASME 2005 (OMAE2005), Halkidiki, 12-17 June 2005.
- Trarieux F & Lyons GJ Detailed analysis of the Vortex Induced Vibration (VIV) frequency content of the Foinaven umbilical. In: 8th International Conference on Flow-Induced Vibration, 2004 (FIV2004), Paris, 6 July 2004.
- Trarieux F & Lyons GJ Novel Use of a Bandwidth Measure For Vortex Induced Vibrations - Case Study: The Foinaven umbilical. In: IUTAM Symposium on Integrated Modeling of Fully Coupled Fluid Structure Interactions Using Analysis, Computations and Experiments, 2003, New Jersey, 2 June 2006.