计算物理 ›› 1990, Vol. 7 ›› Issue (3): 355-362.

• 论文 • 上一篇    下一篇

向前台阶分离流的数值模拟

王力1, 傅德薰2   

  1. 1. 北京空气动力研究所 100074;
    2. 中国科学院力学研究所 100080
  • 收稿日期:1990-02-07 出版日期:1990-09-25 发布日期:1990-09-25
  • 基金资助:
    国家自然科学资金的资助

NUMERICAL SIMULATION OF VISCOUS FLOW AROUND FORWARD FACED STEP

wang Li1, Fu Dexun2   

  1. 1. Beijing Institute of Aerodynamics;
    2. Academy of Science Institute of Mechanics
  • Received:1990-02-07 Online:1990-09-25 Published:1990-09-25

摘要: 本文利用文献[1~3]中提出的差分格式,数值求解了二维向前台阶分离流的问题。着重研究了流体粘性和流体可压缩性对流动的影响。给出M=0.2,0.8,2.3,Re=720和M=2.3,Re=72,720,7220的流动结果。在M=0.8,Re=720流动中计算结果给出了台阶后有一个小分离泡的现象。所得M=2.3,Re=7220的计算结果和文献[5]中的实验结果进行了比较。

关键词: 数值模拟, 分离流动, 激波附面层干扰

Abstract: Laminar compressible flow near a farward faced step is sumulated numerically using the Navier-Stokes equations. Influence of Mach number and Reynolds number on flow character is studied. The computed results are compared with experiments, and agreement is satisfactory.

Key words: numerical simulation, flow separation, shock-boundary interaction