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改进致动面模型(IASM)是将致动模型与黏性无黏耦合模型结合提出的一种新型的风力机流场计算模型.为了进一步验证模型的准确性和适用性,以NREL Phase Ⅵ风力机为例在OpenFOAM平台上,对比分析了相同工况下ALM模型、IASM模型和CFD模型计算得到的三维流场信息,研究表明,IASM模型计算精度比之ALM模型有了明显的提高,能够较准确地预测叶片近壁区域的流场信息.在IASM模型基础上对不同入流工况下风力机尾流特性进行了分析,为风力机的设计以及风场数值模拟提供了参考.“,”Improved Actuator Surface Model (IASM) is a newcomputational model for horizontal axis wind turbine which is built based on actuator model and viscous and inviscid interaction method.This model set up blade surface force based on the three dimensional (3D)actual blade geometry model,simulate the error resulted by amusing body force and improve the accuracy of actuator model.In this paper the accuracy of Improved Actuator Surface Model (IASM) is verified by analyze the wake velocity and wake vortex structure characteristic of Actuator Line Model (ALM),Improved Actuator Surface Model (IASM) and Computational Fluid Dynamics (CFD) model.Then study the wake characteristic of horizontal axis wind turbine in different situation.Doing above works can prove reference for horizontal axis wind turbine design and numerical simulation of wind filed.