航空学报 > 1994, Vol. 15 Issue (5): 601-603

运动激波绕射的数值模拟

蔡罕龙, 李素循   

  1. 北京空气动力研究所,北京,100074
  • 收稿日期:1992-11-14 修回日期:1993-05-31 出版日期:1994-05-25 发布日期:1994-05-25

A NUMERICAL SIMULATION OF NORMAL SHOCK WAVE DIFFRACTION OVER AN OBSTACLE

Cai Hanlong, Li Suxun   

  1. Beijing Institute of Aerodynamics,Beijing,100074
  • Received:1992-11-14 Revised:1993-05-31 Online:1994-05-25 Published:1994-05-25

摘要: 用高分辨率的TVD格式对复杂的激波反射过程做数值模拟。激波斜壁反射计算结果与实验干涉照片、压力分布、密度分布均符合得很好。通过对运动激波绕射凸起物的数值模拟,得到非定常反射流场发展过程及复杂流场间断的清晰图谱。

关键词: 激波, 非定常流, 高分辨率

Abstract: high resolution TVD scheme is used to simulate the complex shock reflection phe-nomenon,The computation results of normal shock impinging on a wedge is compared with experi-mental results that include interferogram,isopycnics,pressure distribution,etc,and good agree-ment is shown,Agroup of simulation results of unsteady flow field of moving normal shock wave diffraction over a wavy wall are obtained, The density contours are shown clearly in the process of the flow field developed.

Key words: shock waves, unsteady flow, high resolution

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