大展弦比飞机翼身Euler绕流计算

给出了用Ｅｕｌｅｒ方程对大展弦比翼身组合体绕流的数值模拟，将Ｋｒｏｌｌ的求解欧拉方程的有限体积法，推广到求解机翼机身流动问题，基本思想是使用保角变换、代数变换和椭圆方程变换混合方法生成机翼机身贴体网格。

Calculation for Large Aspect Ratio Wing-Body Flow Using Euler Code

The finite volume technique used by Kroll to calculate Euler equations is developed in this paper to solve wing-body flow. A hybrid grid generation method composed of a conformal mapping procedure, a topology transformation using elliptic partial differential cquation and algebraic mapping is devclopcd to obtain body-fitted grids. In this paper,an explicit Runge- Kutta tinie-marching finite volume procedure, a combination of second-or forth-order dissipation, yariable-time steps and enthalpy damping is used. The code is effectiye and can be used for complex configuration conveniently.