采用动网格与滑移网格技术的垂直轴风力机启动性能计算  

The numerical simulation of VAWT starting performance using dynamic mesh and sliding mesh methods

作　　者：史亮[1] 钱潇如 韩万金[1] 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001

出　　处：《可再生能源》2016年第10期1509-1516,共8页Renewable Energy Resources

摘　　要：针对垂直轴风力机的启动问题,采用动网格和滑移网格技术进行数值模拟和比较分析,并与公开发表文献的风洞实验数据进行了对比验证。文章通过对风力机启动的非定常过程进行研究,获得了风力机启动性能,并分析了计算所得的速度场。通过分析和综合对比显示,被动型动网格更适于风力机的启动性能模拟,得到的速度场与文献研究结果更接近。该模拟方法更符合流场的实际状态,为垂直轴风力机启动性能数值模拟提供了新思路。To investigate the starting process of vertical axis wind turbine,dynamic mesh method and sliding mesh method were adopted and compared in numerical simulation,and the simulated results are compared with the experimental data of the published literatures. In this paper,the starting performance of wind turbine are obtained through the numerical investigation on its unsteady starting process,then the calculated velocity field are analyzed. An analysis of results indicates that the simulation using passive dynamic mesh performs better during the starting progress. The simulated flow field using passive dynamic mesh is much closer to realistic flow field. A new idea, using passive dynamic mesh, is provided for the starting performance numerical simulation of VAWT.

关 键 词：垂直轴风力机 动网格 滑移网格 启动性能计算 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]