S0503-4-2 直線翼縦軸風車における性能評価の数値解析([S0503-4]自然の流体エネルギー利用技術(4))
詳細
The final goal of this investigation is to develop high performance Vertical Axis Wind Turbines for clean energy supply systems. In this study, the flow-field around a VAWT was analyzed by numerical simulation. As the turbulence model DES was used and sliding-mesh scheme was applied to express rotation. The result is compared with the former analysis by RANS. RANS cannot accurately reproduce separation. On the other hand, DES showed reasonable separation performance in the current results. We found that 4 time steps per mesh length were suitable to analyze the sliding scheme. After this, the performance of VAWT will be evaluated quantitatively. Then, the numerical analysis will be compared with the field experiments of VAWT.
