Enhancement of shock waves

D. Igra; O. Igra

doi:10.1007/s00193-006-0060-z

Enhancement of shock waves

D. Igra, O. Igra

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The flow field developed behind a shock wave propagating inside a constant cross-section conduit is solved numerically for two different cases. First, when the density of the ambient gas into which the shock propagates has a logarithmic change with distance. In the second, and the more practical case, the ambient gas is composed of pairs of air-helium layers having a continually decreasing width. It is shown that in both cases meaningful pressure amplification can be reached behind the transmitted shock wave. It is especially so in the second case. By proper choice of the number of air-helium layers and their width reduction ratio, pressure amplification as high as 7.5 can be obtained.

Original language	English
Pages (from-to)	199-207
Number of pages	9
Journal	Shock Waves
Volume	16
Issue number	3
DOIs	https://doi.org/10.1007/s00193-006-0060-z
State	Published - 1 Feb 2007

Keywords

Pressure amplification
Shock wave
Shock wave interaction with gas layers

ASJC Scopus subject areas

Mechanical Engineering
General Physics and Astronomy

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10.1007/s00193-006-0060-z

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abstract = "The flow field developed behind a shock wave propagating inside a constant cross-section conduit is solved numerically for two different cases. First, when the density of the ambient gas into which the shock propagates has a logarithmic change with distance. In the second, and the more practical case, the ambient gas is composed of pairs of air-helium layers having a continually decreasing width. It is shown that in both cases meaningful pressure amplification can be reached behind the transmitted shock wave. It is especially so in the second case. By proper choice of the number of air-helium layers and their width reduction ratio, pressure amplification as high as 7.5 can be obtained.",

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N2 - The flow field developed behind a shock wave propagating inside a constant cross-section conduit is solved numerically for two different cases. First, when the density of the ambient gas into which the shock propagates has a logarithmic change with distance. In the second, and the more practical case, the ambient gas is composed of pairs of air-helium layers having a continually decreasing width. It is shown that in both cases meaningful pressure amplification can be reached behind the transmitted shock wave. It is especially so in the second case. By proper choice of the number of air-helium layers and their width reduction ratio, pressure amplification as high as 7.5 can be obtained.

AB - The flow field developed behind a shock wave propagating inside a constant cross-section conduit is solved numerically for two different cases. First, when the density of the ambient gas into which the shock propagates has a logarithmic change with distance. In the second, and the more practical case, the ambient gas is composed of pairs of air-helium layers having a continually decreasing width. It is shown that in both cases meaningful pressure amplification can be reached behind the transmitted shock wave. It is especially so in the second case. By proper choice of the number of air-helium layers and their width reduction ratio, pressure amplification as high as 7.5 can be obtained.

KW - Pressure amplification

KW - Shock wave

KW - Shock wave interaction with gas layers

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VL - 16

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JO - Shock Waves

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IS - 3

ER -

Enhancement of shock waves

Abstract

Keywords

ASJC Scopus subject areas

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