Shock Focusing upon Interaction with Heavy Gas Bubble of Different DensityстатьяЭлектронная публикация
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Дата последнего поиска статьи во внешних источниках: 3 июля 2019 г.
Аннотация:7th International Conference on Mathematical Modeling in Physical Sciences, IC-MSQUARE 2018; Moscow; Russian Federation; 27 August 2018 31 August 2018; Код 143487
https://doi.org/10.1088/1742-6596/1141/1/012084
https://iopscience.iop.org/article/10.1088/1742-6596/1141/1/012084
Scopus eid=2-s2.0-85059409154
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Interaction of a shock with round area of heavy gas is simulated using two-dimensional plane and axisymmetrical Euler's equations. Plane formulation describes interaction of a shock with heavy gas cylinder and axisymmetrical models interaction with heavy gas bubble. Incident shock refraction and focusing processes are described including two different interaction patterns – external and internal. Three consecutive pressure peaks are found to occur at symmetry axis (or plane) inside and outside of the shocked inhomogeneity. A dependence of peak pressure values on initial gas density in the inhomogeneity is determined for three different shock Mach numbers. The highest pressure for plane and axisymmetric cases is shown to be reached in different interaction patterns.
This study is performed in the Institute of Mechanics of Moscow State University using computational resources of MSU “Lomonosov” cluster with financial support of the Ministry of Education and Science of Russian Federation (contract No.14.G39.31.0001 from 13.02.2017).