基于滑移网格的垂直轴风力机非定常数值模拟  

Numerical Simulation on Unsteady Rotated Flow of a Vertical Axis Wind Turbine Based on Moving Meshes

作　　者：杨从新[1] 巫发明[1] 张玉良[1] 

机构地区：[1]兰州理工大学风能技术研究中心,兰州730050

出　　处：《农业机械学报》2009年第6期98-102,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金：甘肃省省长专项基金资助项目(Z06200601)

摘　　要：采用滑移网格技术对直叶片垂直轴风力机进行了非定常数值模拟,得到尾流速度、特定过流断面的速度分布规律,并与经典的多流管理论计算出的尾流速度、特定过流断面速度进行了对比,数值模拟结果与理论计算值吻合较好。结果表明,采用滑移网格技术对直叶片垂直轴风力机进行非定常的数值模拟能够较好地反映流场特性。Numerical simulation on unsteady rotated flow of a straight-blade vertical axis wind turbine （VAWT） is done based on moving meshes by means of the software Fluent. The wake velocity and the variation of velocity at the special cross-section are obtained. The results of unsteady flow are compared with ones solved by the multiple stream-tube model, and good coincidence is obtained. The conclusion can be made that the numerical simulation on unsteady rotated flow of a straight-blade VAWT based on moving meshes can represent its flow field.

关 键 词：垂直轴风力机 滑移网格 多流管模型 非定常流 数值模拟 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]