DYNAMICS OF A VARIABLE IN WIDTH GAS SUSPENSION LAYER ACCELERATED BY A PASSING SHOCK WAVE
Using the hybrid large-particle method, the regularities of the interaction of a shock wave when it impacts a gas suspension layer with curved boundaries are studied. Two-dimensional effects of double von Neumann refraction, focusing or divergence of the refracted shock wave, and baroclinic instabil...
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| Format: | Article |
| Language: | English |
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Peter the Great St.Petersburg Polytechnic University
2021-06-01
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| Series: | St. Petersburg Polytechnical University Journal: Physics and Mathematics |
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| Online Access: | https://physmath.spbstu.ru/article/2021.52.05/ |
| Summary: | Using the hybrid large-particle method, the regularities of the interaction of a shock wave when it impacts a gas suspension layer with curved boundaries are studied. Two-dimensional effects of double von Neumann refraction, focusing or divergence of the refracted shock wave, and baroclinic instability at the gas-suspension interface with the formation of mushroom-shaped or ring-shaped vortex structures are established. The features of the nonequilibrium flow are identified. These features associated with a decrease in the intensity of the passing shock wave and the splitting of the initial separation of the media into two contact discontinuities – a jump in porosity and a contact discontinuity in the gas phase |
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| ISSN: | 2405-7223 |