Modelling the wake of a tidal turbine with upstream turbulence

LBM-LES versus Navier-Stokes LES

  • Mikaël Grondeau
  • Jean-Charles Poirier SIREHNA
  • Sylvain Guillou University of Caen
  • Yann M´ear CNAM-INTECHMER
  • Philippe Mercier University of Caen
  • Emmanuel Poizot CNAM-INTECHMER
Keywords: Tidal turbine, Turbulence, Computational Fluid Dynamics, Large Eddy Simulation, Lattice Boltzmann method, Navier-Stokes equations

Abstract

Tidal turbines are entering an industrial phase and farms will soon be installed. In order to optimize the power output of tidal farms, a good understanding of the interactions between the ambient turbulence and a single turbine is crucial. Computational Fluid Dynamics, and more precisely Large Eddy Simulation, is one way of acquiring such knowledge. This study proposed a comparison between a Lattice Boltzmann Method LES approach and a Navier-Stokes LES approach to model the wake of a tidal turbine. Numerical results are compared with experimental results and a relatively good concordance is observed. Differences inherent to the approaches are then pointed out.

Published
2020-09-16
How to Cite
Grondeau, M., Poirier, J.-C., Guillou, S., M´earY., Mercier, P., & Poizot, E. (2020). Modelling the wake of a tidal turbine with upstream turbulence. International Marine Energy Journal, 3(2), 83-89. https://doi.org/10.36688/imej.3.83-89