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力学与实践 ›› 2000, Vol. 22 ›› Issue (3): 0-0.doi: 10.6052/1000-0879-f2000-073

• 论文 •    

欠膨胀高速射流的压力均一化过程

戚隆溪 江先金   

  1. 中科院力学所 100080
  • 收稿日期:2008-01-15 修回日期:1900-01-01 出版日期:2000-06-10 发布日期:2000-06-10

PRESSURE UNIFORMIZATION OF THE UNELEREXPANDED HIGH SPEED JETS

  • Received:2008-01-15 Revised:1900-01-01 Online:2000-06-10 Published:2000-06-10

摘要: 发展了分析欠膨胀高速湍流射流近场特性的数值方法,计算了不同背压比条件下声速喷管出口附近膨胀区的激波胞格结构,揭示了压力均一比过程的机制.

Abstract: In this paper, the numerical simulationmethod of the near-field fiow properties of under-expanded high-speed jets was developed. The re-sults of shock-cell structure in the expansion regionnear nozzle-exit at several static pressure ratios weregiven, and the mechanism of pressure uniformationwas analyzed.