小迎角轴对称体跨声速绕流的一种 Euler 解法

An Euler Solution of Transonic Flow for an Axis Symmetric Body at Small Attack

应用小迎角展开的方法将小迎角下旋成体绕流Ｅｕｌｅｒ方程进行摄动展开，对零阶和一阶方程分别采用了隐式ＮＮＤ格式进行了计算，与实验进行比较得到了较为满意的结果。该方法采用二维的计算得到了三维的结果，大大提高了计算的效率。

The Euler equations are extended for a revolutional body on small attack the zero order and first order equations are calculated by an implicite NND scheme.The results are satisfactory in comparison with experimental results.This method is that using the two dimensional calculation to obtain the three dimensional results.It increases greatly calculational efficency.