Tidal and wind turbine simulation with the simulation code DOROTHY

Abstract

In the context of diversification toward renewable energies, wind and tidal turbines are set to play an important role. To this end, the simulation code DOROTHY uses the Vortex Particle Method, which offers a good compromise between physical realism and computational times. A possibility has recently been added for the account of ambient turbulence in the surrounding flow, using modules based on the Synthetic Eddy Method (SEM) and its divergence-free adaptation (DFSEM). Two representations are now available for the representation of the turbines: the historical option using boundary integral methods or a lifting line model. Thanks to all these developments, wakes and wake interactions of multiple turbines, with a possibility to account for ambient turbulence is now possible with DOROTHY. Furthermore, with the addition of the lifting line, performances evaluation and possible performance losses in realistic tidal or wind turbine farms conditions can now be treated.