CFD在复杂地形风能开发中的应用研究

APPLICATION OF CFD ON THE SIMULATION OF THE WIND ENERGY OVER COMPLEX TERRAIN

利用计算流体力学(CFD)技术将高分辨地形高程资料建立成精细网格模拟复杂地形风场流动,用于支撑复杂地形的风能开发。以江西鄱阳湖矶山附近区域为例,表明湍流方案的设置显著影响复杂地形的风场模拟;并将中尺度天气模式输出当做边界条件输入给CFD,初步显示中尺度天气模式结合CFD的方法可更好地模拟复杂地形的大气边界层运动。

To support wind energy development over complex terrain, finer mesh grids are established by using high-resolution terrain elevation data, and computational fluid dynamics （CFD） technology is utilized to simulate wind flow over complex terrain. We present a case of wind flow over the small hills JiShan near Poyang Lake in Jiangxi province of China. It is indicated that turbulence scheme setting significant affects the simulation of wind field over complex terrain. Taking mesoscale weather model output as the boundary conditions input of CFD prelimi- narily demonstrates that the method CFD combined with mesoscale weather model could be a better way to simulate atmospheric boundary layer movement over complex terrain.