EMO-Ocean wave and marine renewable energy

The research of the Ocean Wave and Marine Renewable Energy group focuses on the deterministic propagation of ocean waves and complex sea states, on their interaction with marine structures on large time and space scales and on the performance of wave energy converters and floating offshore wind turbines.
Our research is performed using numerical and experimental approaches. We develop and use:
  • Numerical wave tank (numerical simulation)
  • Centrale Nantes experimental facilities
  • Centrale Nantes offshore test site SEM-REV
Two of our software programmes are now available in Open source: NEMOH and(HOS-OCEAN/HOS-NWT).
 

Research areas

Ocean waves and complex sea states

This research axis is dedicated to the understanding of the physics of sea states in oceanic and coastal environments.

It deals mainly with deterministic wave prediction, wave turbulence, ocean-atmosphere interactions, wave current interactions and wave propagation and dissipation.

Our refined ocean waves models (HOS-OCEAN and HOS-NWT) can be coupled with wave-structure interaction solvers for seakeeping analysis.

We have collaborated on these topics with MIO, the University of Rhodes Island, the MSC lab, Ifremer and the DAUC and the other research groups at LHEEA.

Large scale modeling of wave power systems and floating wind turbines


In this axis, our research is dedicated to the development of innovative modeling techniques capable of delaing with hydrodynamic peculiarities of wave energy converters and offshore wind turbines (large amplitude motion, wave interactions in large arrays, aero-hydro-servo experimental modeling of floating wind turbines, simulation of floating multibody systems with complex kinematic chain).

Our BEM software NEMOH is now available in open-source (NEMOH).

In collaboration with other teams of the LHEEA and further, we investigate the effects of the multi-physical couplings on the dynamics response of marine energy systems and their components (aerodynamic interactions between floating wind turbines, dynamic response of marine cables, aero-hydro-servo couplings). We have collaborated on these topics with DAUC research group at LHEEA, the LHSV lab., the IRPHE lab., the Edinburgh University or NTU Athens.

Energy performance, optimization and control of marine energy converters

In this axis, we focus on the performance of marine energy converters. We perform benchmarks for the energy performance and/or the economical viability. We investigate control strategies for wave energy converters and wind turbine; and we touch upon power smoothing and power management.

We have collaborated with LS2N, SATIE, NREL, NUI Maynooth.

Projects & partnerships

The group has been involved in collaborative projects with academic and industrial partners in France and over the world.

Actions to promote science

The research group is regularly involved in actions to promote science among the general public. In 2015, we organized the 11th edition of EWTEC in 2015 in Nantes (600 participants of 42 nationalities). We initiated the French academic network on Marine Renewable Energy (GDR CNRS 3763 EMR).

National Research Group: Marine Renewable Energy"

The team is also at the initiative of the National Research Group:
"Marine Renewable Energy" (CNRS GDR 3763 EMR).
Published on March 27, 2017 Updated on January 25, 2021