风力机黏性无黏耦合气动模型研究  

The Viscous and Inviscid Interaction Aerodynamic Model for HAWT

作　　者：王强[1,2] 徐宇[1,3] 王胜军[1,2] 徐建中[1,3] 

机构地区：[1]中国科学院工程热物理研究所,北京100190 [2]中国科学院研究生院,北京100049 [3]中国科学院风能利用重点实验室,北京100190

出　　处：《工程热物理学报》2013年第4期646-649,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50876105)

摘　　要：三维面元法利用面网格实现三维势流流场的求解,不但可以准确地计算压力系数分布等叶片三维流场信息,又不需要耗费过多的计算时间,为分析风力机三维流场提供了有效的途径。边界层模型可以有效地计算近壁黏性区,从而补充面元法的不足。基于三维面元法和二维边界层模型建立黏性无黏耦合模型,并以Joukowsky翼型为案例验证面元法模型准确性。利用黏性无黏耦合模型对NREL Phase Ⅵ风力机叶片的三维流场进行了具体的分析。计算结果表明黏性无黏耦合模型具有效率高计算准确等特点,适合于风电叶片气弹耦合问题的研究。The 3D Panel Method can obtain the 3D potential flow field just by the surface mesh attached to the wind turbine blade and give accurate pressure coefficient distribution et. 3D flow information without consuming too much computational time. So the 3D Panel Method provides an efficient access to the analysis of 3D flow field of HAWT. The boundary layer model is an efficient method for analyzing the viscous flow near the blade, which provides suitable complimentary for the Panel Method. Based on the 3D Panel Method and the 2D boundary layer model, a viscous and inviscid interaction model is created in this paper. After validating the accuracy of 3D Panel Method by the case of the potential flow field around the Joukowsky airfoil, a detailed analysis of the 3D flow field of NREL Phase VI wind turbine blade is carried out. The results show that the interaction model is efficient and accurate, so that it is suitable for the study of aeroelastic problem of HAWT.

关 键 词：水平轴风力机 三维面元法 边界层方法 黏性无黏耦合模型 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]