计算物理 ›› 1993, Vol. 10 ›› Issue (3): 359-363.

• 论文 • 上一篇    下一篇

无粘性和粘性流体通过收缩喷管内外流场的数值解

邵继锋1, 温功碧1, 吴望一1, 董松野2   

  1. 1.北京大学力学系, 北京 100871;
    2. 航空航天部31所 100074
  • 收稿日期:1991-10-30 修回日期:1992-10-30 出版日期:1993-09-25 发布日期:1993-09-25

THE NUMERICAL SOLUTION OF INTERNAL AND EXTERNAL FIELD OF INVISCID AND VISCOUS FLOW THROUGH CONVERGENT NOZZLES

Shao Jifeng1, Wen Gongbi1, Wu Wangyi1, Dong Songye2   

  1. 1.Dept. of Mechanics, Peking Univ. Beijing, 100871;
    2. Institute 31, M in. of Aeronaut, and Astronaut. Beijing, 100074
  • Received:1991-10-30 Revised:1992-10-30 Online:1993-09-25 Published:1993-09-25

摘要: 本文从欧拉方程和雷诺平均N-S方程出发,采用Mac Cormack格式,数值模拟了收缩喷管出口边缘奇异性带来的不稳定。计算例子与现有实验符合很好。

关键词: 喷管流, 区域分裂, 欧拉方程解, N-S方程解

Abstract: The numerical solution of inviscid and viscous flow through convergent nozzles is presented from Euler equation and N-S equation. MacCormack explicit difference scheme is used with an improved artificial viscous term. The method employs the split of zone to overcome the instability near exit of the nozzeles. The results of a typical calculation are in good agreement with experimental data.

Key words: the flow through nozzles, separation of zone, the solution of Euler Equation, the solution of N-S equation