Numerical simulation of the wake of marine current turbines with a particle method

RENEWABLE ENERGY

卷:46

Article

Pinon, Gregory¹  Mycek, Paul^1,2  Germain, Gregory²  Rivoalen, Elie^1,3 

[1] Univ Havre 53, CNRS, UMR 6294, Lab Ondes & Milieux Complexes, F-76058 Le Havre, France

[2] IFREMER, Hydrodynam & Metocean Serv 150, F-62321 Boulogne Sur Mer, France

[3] Lab Optimisat & Fiabilite Mecan Struct, EA 3828, F-76801 St Etienne, France

关键词: Numerical computations;    Marine current turbine;    Hydrodynamic;    Power and thrust coefficients;    Wake;   

DOI  :  10.1016/j.renene.2012.03.037

来源: Elsevier

【 摘 要 】

This paper presents numerical computations of three bladed horizontal axis marine current turbines in a uniform free upstream current. The unsteady evolution of the turbine wake is taken into account by some three-dimensional software, developed to assess the disturbances generated in the sea. An unsteady Lagrangian method is considered for these computations using Vortex Method: a velocity-vorticity numerical implementation of the Navier-Stokes equations. The vortex flow is discretised with particles carrying vorticity, which are advected in a Lagrangian frame. The present paper aims at presenting results on both power and thrust coefficient (C-p and C-T) predictions and wake characterisation, up to ten diameters downstream of the turbine. Moreover, two different marine current turbines configurations are considered: one is taken from literature [1] and the second one is an open-modified version of turbine inspired from previous works [2]. (C) 2012 Elsevier Ltd. All rights reserved.

【 授权许可】

Free