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Effects of Adiabatic Exponent on Richtmyer--Meshkov Instability |
| TIAN Bao-Lin;FU De-Xun;MA Yan-Wen |
| Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080 |
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| Cite this article: |
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TIAN Bao-Lin, FU De-Xun, MA Yan-Wen 2004 Chin. Phys. Lett. 21 1770-1772 |
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Abstract We present a systematical numerical study of the effects of adiabatic exponent γ on Richtmyer--Meshkov instability (RMI) driven by cylindrical shock waves, based on the γ model for the multi-component problems and numerical simulation with high-order and high-resolution method for compressible Euler equations. The results show that the RMI of different γ across the interface exhibits different evolution features with the case of single γ. Moreover, the large γ can hold back the development of nonlinear structures, such as spikes and bubbles.
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| Keywords:
47.20.Ma
47.20.-k
47.40.-x
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Published: 01 September 2004
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| PACS: |
47.20.Ma
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(Interfacial instabilities (e.g., Rayleigh-Taylor))
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47.20.-k
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(Flow instabilities)
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47.40.-x
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(Compressible flows; shock waves)
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