OS2-1 非定常流れ解析による縦軸風車の性能評価(OS2 自然エネルギー利用技術,分散と集中の共存)

概要

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In order to improve the performance of vertical axis wind turbines, numerical investigation was carried out. Since the angles of attack of VAWT are widely changed during rotor rotation, unsteady flow simulations are necessary for this purpose. A large eddy simulation and unsteady RANS were tested to simulate the flow around a VAWT. The numerical results showed the large separated flow can be observed with LES. On the other hand, RANS was not suitable to simulate the flow around a VAWT. The torque coefficient of VAWT reduced at the upstream region. In this region, uniform flow hit on the suction side of the airfoil. To improve the aerodynamic performance of VAWT, control of the angle of attack is required in this region.
一般社団法人日本機械学会の論文
2006-06-28