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

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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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Authors and Affiliations

  1. Institute of Mechanics of Lomonosov Moscow State University, Moscow, 119192, Russia

    P. Yu. Georgievskiy, V. A. Levin & O. G. Sutyrin

Authors
  1. P. Yu. Georgievskiy
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  2. V. A. Levin
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  3. O. G. Sutyrin
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Corresponding author

Correspondence to O. G. Sutyrin.

Additional information

Original Russian Text © P.Yu. Georgievskiy, V.A. Levin, O.G. Sutyrin, 2018, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2018, Vol. 44, No. 20, pp. 3–12.

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Georgievskiy, P.Y., Levin, V.A. & Sutyrin, O.G. Spatial Effects of Interaction of a Shock with a Lateral Low-Density Gas Channel. Tech. Phys. Lett. 44, 905–908 (2018). https://doi.org/10.1134/S1063785018100231

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  • DOI: https://doi.org/10.1134/S1063785018100231

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