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分别采用CFD计算软件数值模拟和一维流管模型法对垂直轴风力机气动性能进行计算。数值模拟采用Fluent软件,流场计算使用添加附面层的非结构网格,通过计算得到垂直轴风力机非定常流动特性。通过引入能量损失模型修正,建立新的垂直轴风力机一维流管气动性能计算方法。分别使用两种方法对叶轮的气动性能进行计算对比,结果表明:两种方法所得结果一致性较好,均具有一定的计算准确性。
The aerodynamic performance of vertical axis wind turbine was calculated by CFD numerical simulation software and one-dimensional flow tube model respectively. The numerical simulation uses Fluent software. The flow field calculation uses unstructured grids with attached surface layers and the unsteady flow characteristics of the vertical axis wind turbine are calculated. By introducing the energy loss model correction, a new method of calculating the aerodynamic performance of a one-dimensional flow tube of a vertical axis wind turbine is established. The aerodynamic performance of the impeller is calculated and compared respectively by two methods. The results show that the results obtained by the two methods are in good agreement and all have certain accuracy.