应用自由变形法的翼型几何外形参数化研究  

Geometry Representation Method of Airfoil Based on Free Form Deformation

作　　者：高民[1] 

机构地区：[1]西北工业大学航空学院,陕西西安710072

出　　处：《飞行力学》2009年第5期44-46,50,共4页Flight Dynamics

摘　　要：对一种新的基于NURBS方法的自由变形参数化方法进行了研究,该方法继承了NURBS方法的优点并避免了其缺点。利用该方法对两副翼型分别进行了参数化和优化设计、反设计,流动控制方程为N-S方程,目标函数梯度计算方法采用了离散共轭方法。算例表明,自由变形参数化方法能够满足设计需要。This paper studied a new geometry representation method： free form deformation method based on NURBS method.This method inherits the merit of NURBS method and avoids the defect.Two airfoils are parameterized by this method and optimized,and revised designed.The flow governing equations are N-S equations,and the gradient of objective functions are calculated by discrete adjoint method.The cases show that the new geometry representation method meets the need of design.

关 键 词：自由变形法 N-S方程 翼型 气动优化设计 反设计 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]