Shock wave reflection from the axis of symmetry in a nonuniform flow with the formation of a circulatory flow zone

Autor: O. B. Bocharova, I. V. Fryazinov, I. V. Popov, V. V. Sitnik, M. G. Levedev
Rok vydání: 2014
Předmět:
Zdroj: Mathematical Models and Computer Simulations. 6:142-154
ISSN: 2070-0490
2070-0482
DOI: 10.1134/s2070048214020033
Popis: Two supersonic axisymmetric flows, in which the incidence of a shock wave on the axis of symmetry leads to the formation of return (circulatory) flow zones, are numerically modeled. The former of these flows is of the wake type with a ram pressure deficit in the vicinity of the axis of symmetry. The numerical results obtained are in qualitative and quantitative agreement with the available experimental data. The latter flow is generated by a hypersonic spherically-symmetric source placed on the axis of a cylindrical channel. An analysis of the obtained solutions, together with their comparison with the data in the literature, suggests that the formation of the above-mentioned circulatory flow zones is physical, rather than computational, in nature. There is also reason to believe that the phenomenon under consideration is hydrodynamic, rather than dissipative, in nature.
Databáze: OpenAIRE
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