TY - JOUR A2 - Apte, Sourabh V. AU - Zhu，简阳AU - Tian，Changbin PY - 2019 DA - 2019/08/01 TI -旋转摩擦的影响比功率提取性能的被动旋转VAWT SP - 6580345六世- 2019 AB -本文执行系统的数值研究调查的影响旋转摩擦系数的功率提取性能被动旋转屏蔽垂直轴风turbine (H-VAWT). In contrast to the previous literature, the present work does not impose rotation velocity on the turbine, and the rotation friction ratio which reflects the effect of external load characteristics on the turbine is introduced to the governing equation of the turbine. During each iteration, the rotation velocity of the turbine is computed after having determined the aerodynamic torque exerted on the blade of the turbine. This is more consistent with the actual working environment of the H-VAWT. A novel numerical coupling model was developed to simulate the interaction between the fluid and the passive rotation of the H-VAWT; then, the power extraction performance of the turbine with different rotation friction ratio was systematically analyzed. The results demonstrate that the power extraction performance of H-VAWT will be enhanced when the H-VAWT has appropriate rotation friction ratio. It is also found that the flow separation induced by large angle of attack is alleviated essentially if the H-VAWT has appropriate rotation friction ratio, which makes the H-VAWT have better energy extraction performance. SN - 1023-621X UR - https://doi.org/10.1155/2019/6580345 DO - 10.1155/2019/6580345 JF - International Journal of Rotating Machinery PB - Hindawi KW - ER -