欧拉方程多段翼型绕流计算的嵌套网格方法

本文采用嵌合体埋入技术，将主段翼型和襟翼分成两子域，对多段翼型的复杂构型进行了分区迭代求解，在有限体体积离散的基础上，求解欧拉方程计算各子域流场的解，通过各流场的耦合迭代到多段翼型绕流的解，典型的带３０％襟翼ＧＡ（Ｗ）－１翼型算例表明，该计算方法稳定，能较地模拟多段翼型中主段翼型与襟翼交接处的复杂流动现象计算结果与实验值有较好的一致性。

A Method of Using Chimera Grid and Euler Equations for Calculation of the Flow around Multi element Airfoils

The Chimera embedding tecnique is presented for the multi element configuration.It divides the whole region into many subdomains according to main airfoil,slat and flap.Euler equations are used for every subregion with the finite volume method.Through couple iterating,the solution of whole field is obtained by exchanging information between subregions.The result of GA(W) 1 Airfoil with 30% flap shows that the results of the present method are in agreement with the experiment data and that the complicational flow mechanism near the joint of main airfoil and flap can be simutaled very well.