Study on the effect of turbulence on the wake velocity field of the horizontal axis wind turbine

DOI Web Site

Bibliographic Information

Other Title
  • 水平軸風車後流速度場に及ぼす乱れの影響に関する研究

Description

<p>In the wind farm, the wake velocity of the upstream wind turbine flows into the downstream wind turbine. In order to design more efficient layout of the wind farm, it is necessary to estimate more accurate velocity distribution of the turbine wake. The wake velocity, however, can be affected by the turbulent intensity of the inflow wind, due to turbulent diffusion of the momentum. Therefore, consideration of the inflow turbulence effects is imperative for the accurate estimation of the wake velocity. CFD is the most powerful tool for the wake analysis, however, its computational load sometimes becomes too heavy to obtain far wake velocity distribution. The present study proposes the calculation methods for the wake velocity of the wind turbine, by adopting panel method for the fluid analysis. For the consideration of the inflow turbulence, Veers model is used for the turbulence generation. The obtained calculation results are compared with the experimental results and the results from the engineering models, such as NEDO model, in order to evaluate the validity of the proposed method.</p>

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top