复杂地形风场绕流数值模拟方法  

Simulation Method of Flow Over Complex Terrain

作　　者：梁思超[1] 张晓东[1] 康顺[1] 

机构地区：[1]华北电力大学电站设备状态监测与控制教育部重点实验室,北京102206

出　　处：《工程热物理学报》2011年第6期945-948,共4页Journal of Engineering Thermophysics

基　　金：国家国际科技合作计划资助(No.2010DFA64600)

摘　　要：与一般的工业问题相比,风电场近地面的流动总是充分发展的湍流边界层流动。为了把已广泛应用于工业问题分析的CFD软件包FINE/TURBO和带有壁面函数的k-ε湍流模型用于复杂地形地貌风电场大气流动的数值模拟,本文首先以平板地形为几何模型,探索湍流模型及壁面函数模型中的一些参数对模拟沿流动方向均匀大气边界层的影响。然后采用合适的湍流模型参数对Askervein山进行模拟并与实验测风数据比较,验证模型参数的合理性。The flow over wind farms is always fully developed turbulent boundary layer flow, comparing with the normal industrial flow.Firstly,in order to use the CFD package FINE/TURBO and standard k-e turbulence model with wall function,which is widely used in industry,in the simulation of wind farm with the complex terrain,wind flow over a flat terrain is simulated,to investigate the influence of some parameters in the standard k-e turbulence model with standard wall functions on the simulation of homogenous atmosphere.Then,Askervein hill is numerically simulated with the modified parameters in turbulence model and the results are compared with experiment.

关 键 词：大气边界层 湍流模型 微观选址 数值模拟 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程]