Abstract
The cumulation effects inside a shock layer in the case of the interaction of blunt bodies with local density inhomogeneities—gas bubbles in a supersonic ambient flow are investigated. Low density and high density bubbles of different size and geometrical shape are examined. Euler equations are used for the numerical modeling of an unsteady axially symmetric supersonic flow past blunt bodies. Both for low density and high density gas bubbles the shock focusing effect in small region along the symmetry axes inside a shock layer is detected. The consequence of these effect is fast implosion-type phenomena inside a shock layer which lead to appearing of intensive pressure and density jumps localized in the critical point of a body.
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Acknowledgements
The investigations have been supported by the Russian Foundation for Basic Research (projects 14-01-00891-a, 16-29-01092-ofi) and the Russian Science Foundation (project 14-11-00773).
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Georgievskiy, P., Levin, V., Sutyrin, O. (2017). Shock Focusing Effect for The Interaction of Blunt Bodies with Gas Bubbles in a Supersonic Flow. In: Ben-Dor, G., Sadot, O., Igra, O. (eds) 30th International Symposium on Shock Waves 2. Springer, Cham. https://doi.org/10.1007/978-3-319-44866-4_42
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DOI: https://doi.org/10.1007/978-3-319-44866-4_42
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