基于CST参数化方法的风电叶片翼型建模及软件实现  

Modeling and Software Realization of Wind Turbine Blade Airfoil Based on CST Parameterization Method

作　　者：马铁强[1] 张宁辉 崔晓森 孙传宗 单光坤[1] MA Tieqiang;ZHANG Ninghui;CUI Xiaosen;SUN Chuanzong;SHAN Guangkun(School of Mechanical Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]沈阳工业大学机械工程学院,沈阳110870

出　　处：《机械工程师》2024年第6期41-46,共6页Mechanical Engineer

基　　金：国家自然科学基金面上项目“串联式笼条辅助磁障转子无刷双馈风力发电机与基于代理模型的优化设计方法研究”(52007124)。

摘　　要：在风电叶片翼型的气动设计优化研究过程中,CST参数化方法能够通过较少的几何设计变量来表现出翼型的几何形状。为提高该参数化方法的拟合精度,分别针对CST参数化方法中形函数在选择不同次数时的拟合精度进行计算和讨论,并通过计算机编程语言完整地实现CST参数化。以叶片NACA4412为例,将利用CST参数化方法处理后的翼型导入CFD软件进行气动仿真,将其结果和原始翼型气动仿真结果进行比较,结果表明,两种翼型呈现近似的气动性能,验证了形函数最优次数的准确性及CST参数化方法的编程可行性。In the process of aerodynamic design optimization of wind turbine blade airfoil,CST parameterization method can show the geometry of the airfoil through fewer geometric design variables.In order to improve the fitting accuracy of the parameterization method,the fitting accuracy of the form function in the CST parameterization method is calculated and discussed respectively when different times are selected,and the CST parameterization is completely implemented by computer programming language.Taking blade NACA4412 as an example,the airfoil processed by CST parameterization method is imported into CFD software for aerodynamic simulation.The results are compared with the original airfoil aerodynamic simulation results.The simulation results show that the two airfoils show approximate aerodynamic performance,which verifies the accuracy of the optimal number of shape functions and the programming feasibility of CST parameterization method.

关 键 词：CST 参数化建模 CFD仿真 

分 类 号：TM315[电气工程—电机]