流体騒音の数値シミュレーション

抄録

Fluid noise is what always happens in the windmill. Therefore, the purpose of this study is to analyze the fluid noise induced around horizontal cylinder using numerical simulation. The tubulence models used in the numerical simulation are SST k-ω model，LES (Large Eddy Simulation) model and Dynamic-LES (Dynamic-Large Eddy Simulation) model. The acoustic model is FW-H model. The caluclation target is the cylinder. Characteristics of the fluid noise is revealed by the FFT analysis and wavelet analysis.