太鼓山風力発電所のナセル落下事故に対する数値流体力学的アプローチによる一考察

Translated title of the contribution: Numerical Investigation of Terrain-Induced Turbulence in Taikoyama Wind Farm

Research output: Contribution to journalArticle

Abstract

Because a significant portion of the topography in Japan is characterized by steep, complex terrain, which results in a complex spatial distribution of wind speed, great care is necessary for selecting a site for the construction of Wind Turbine Generators (WTGs). We have developed a Computational Fluid Dynamics (CFD) model for unsteady flow called Research Institute for Applied Mechanics, Kyushu University, COMputational Prediction of Airflow over Complex Terrain (RIAM-COMPACTR). The RIAM-COMPACTR CFD model is based on Large-Eddy Simulation (LES) technique. In this paper, the numerical wind simulation over the Taikoyama wind farm was executed using the high resolution elevation data. As a result, the numerical results obtained suggest that all the six WTGs in the Taikoyama wind farm are subject to significant influence from separated flow (terrain-induced turbulence) which is due to the topographical irregularity in front of WTGs. The new reproduction proposal was also done.
Translated title of the contributionNumerical Investigation of Terrain-Induced Turbulence in Taikoyama Wind Farm
Original languageJapanese
Pages (from-to)A_6-A_13
Journal風力エネルギー
Volume39
Issue number1
DOIs
Publication statusPublished - 2015

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