Numerical simulation of instability of two-dimensional convergent shock wave propagating in gas

LIU Jin-hong; TAN Duo-wang; ZHANG Xu; ZOU Li-yong; HUANG Wen-bin

doi:10.11883/1001-1455(2009)06-0601-06

Volume 29 Issue 6

Sep. 2014

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Article Navigation > Explosion And Shock Waves > 2009 > 29(6): 601-606

LIU Jin-hong, TAN Duo-wang, ZHANG Xu, ZOU Li-yong, HUANG Wen-bin. Numerical simulation of instability of two-dimensional convergent shock wave propagating in gas[J]. Explosion And Shock Waves, 2009, 29(6): 601-606. doi: 10.11883/1001-1455(2009)06-0601-06

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LIU Jin-hong, TAN Duo-wang, ZHANG Xu, ZOU Li-yong, HUANG Wen-bin. Numerical simulation of instability of two-dimensional convergent shock wave propagating in gas[J]. Explosion And Shock Waves, 2009, 29(6): 601-606. doi: 10.11883/1001-1455(2009)06-0601-06

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Numerical simulation of instability of two-dimensional convergent shock wave propagating in gas

doi: 10.11883/1001-1455(2009)06-0601-06

1.
National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China

Publish Date: 2009-11-25

Abstract

Abstract

The discontinuity instability and wave front evolution of a cylindrical convergent shock wave propagating in gas were simulated by the CE/SE scheme. The evolution of the interface between the high-pressure driving gas and the low-pressure driven gas was revealed by the level set method. Both the typical spire and bubble discontinuity patterns due to Rayleigh-Taylor (RT) and Richtmyer-Meshkov (RM) instability, and the polygon and petal patterns developed from the initial sine convergent shock wave were obtained. Results demonstrate that the CE/SE scheme is feasible in numerical simulation involving convergent shock wave propagation.
- fluid mechanics,
- Rayleigh-Taylor instability,
- CE/SE scheme,
- convergent shock wave,
- level set equation

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