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Technical Physics Letters

, Volume 44, Issue 10, pp 905–908 | Cite as

Spatial Effects of Interaction of a Shock with a Lateral Low-Density Gas Channel

  • P. Yu. Georgievskiy
  • V. A. Levin
  • O. G. Sutyrin
Article
  • 9 Downloads

Abstract

Three-dimensional interaction of a shock with lateral low-density gas channel of round, elliptic or rectangular cross-section is numerically studied using Euler’s equations. The structure of formed shock wave precursor is described in detail. Internal shear layer instabilities in three-dimensional flow are shown to develop faster than in axisymmetric case. Moderate amplification of high-pressure jet cumulation effect is noted for elliptic and rectangular channel cases. Dependence of precursor growth rate on cross-section shape is studied. It is found that stretching of cross-section shape significantly increases the duration of linear precursor growth phase.

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • P. Yu. Georgievskiy
    • 1
  • V. A. Levin
    • 1
  • O. G. Sutyrin
    • 1
  1. 1.Institute of Mechanics of Lomonosov Moscow State UniversityMoscowRussia

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