There is a need to clarify the coupling characteristics of terrain-induced wind fields and wind turbine-induced wake in wind farm micrositing. However, research investigating the effect of hill shape on this interaction is lacking. In addition, during the optimization of the layout of the turbines over topographies, the flow behind the turbines should be predicted in a fast way. After obtaining the wake flow of the turbine mounted on flat terrain and the flow over the topographies, there are mainly two superposition methods to predict the turbine wake flow over the topographies. One is to add the wind deficit following the location with a vertical distance of the hub height (D-line). The other is to add the wind deficit following the streamline starting from the turbine center (B-line). It remains unknown to what extent these two superposition methods can be adopted. Therefore, the effects of hill shape, wind turbine size, and turbine location are investigated. When the wind deficit, obtained from modeling the wake flow of the turbine mounted on flat terrain, is superposed following B-line, the results are overall better than those when following D-line.

中文翻译：

---

典型复杂地形中风力涡轮机尾流的大涡模拟

需要明确风电场微选址中地形诱发风场和风力机诱发尾流的耦合特性。然而，缺乏调查山丘形状对这种相互作用的影响的研究。此外，在涡轮机布局优化过程中，应快速预测涡轮机后面的流量。在获得平地水轮机尾流和地形上的流后，主要有两种叠加方法来预测水轮机在地形上的尾流。一种是在与轮毂高度（D 线）垂直距离的位置之后添加风差。另一种是沿着从涡轮中心（B 线）开始的流线添加风量赤字。这两种叠加方法可以采用到什么程度，目前还不得而知。因此，研究了山体形状、风力涡轮机尺寸和涡轮机位置的影响。当通过模拟安装在平坦地形上的涡轮机的尾流建模获得的风亏沿 B 线叠加时，结果总体上优于沿 D 线的结果。