计算物理 ›› 1994, Vol. 11 ›› Issue (3): 362-366.

• 论文 • 上一篇    下一篇

膨胀不足超音速自由射流的数值模拟

马大为, 乐贵高, 余世海   

  1. 南京理工大学, 南京 210014
  • 收稿日期:1993-01-12 修回日期:1993-07-30 出版日期:1994-09-25 发布日期:1994-09-25
  • 基金资助:
    国防科技预研基金

NUMERICAL SIMULATION OF UNDEREXPANDED SUPERSONIC FREE-JET FLOW

Ma Dawei, Le Guigao, Yu Shihai   

  1. Nanjing University of Institute & Technology, Naming 210014
  • Received:1993-01-12 Revised:1993-07-30 Online:1994-09-25 Published:1994-09-25

摘要: 微波自喷管口出射到低压滞止大气中所形成的流场可简化为轴对称非定常流动问题。本文采用二阶精度迎风TVD格式对膨胀不足超音速自由射流进行了数值模拟,并获得令人满意的时间相关解。

关键词: 气体动力学, 激波, 射流, 数值模拟

Abstract: When a shock wave propagates into a quiescent atmosphere of low pressure from a nozzle orifice, the flow can be simplied by solving a axisymmetric unsteady flow problem. In this paper second order accurate upwind schemes in total variation diminishing (TVD) type is employed for numerically simulating underexpanded supersonic free jet. A satisfactory time-dependent solution has been achieved.

Key words: gasdynamics, shock wave, jet flow, numerical simulation

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