Abstract
The problem of strong point explosion in a nonuniform atmosphere is analytically solved. The earlier numerical solution of a similar task obtained by us shows that already at the initial stage of the process in a spherical gas layer in the area of an explosion, adjacent to the front of the shock wave, vortex structures are formed. Since for these small times the solution slightly differs from the exact solution by L.I. Sedov, by the perturbation method the theoretical research of a current in the internal area of an explosion, which allows the emergence of such vortex formations to be explained, is conducted.
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Funding
The work of V. A Andrushchenko and I. V. Murashkin was carried out within the framework of the State Assignment of the Institute for Computer Aided Design of the Russian Academy of Sciences; the work of V. A. Goloveshkin was performed within the framework of the State Assignment of the Institute of Applied Mechanics of the Russian Academy of Sciences.
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Translated by E. Seifina
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Andrushchenko, V.A., Goloveshkin, V.A., Murashkin, I.V. et al. Formation of Vortex Structures in an Area of Strong Explosion in a Nonuniform Atmosphere at Its Early Stage. Fluid Dyn 57, 944–953 (2022). https://doi.org/10.1134/S0015462822070035
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DOI: https://doi.org/10.1134/S0015462822070035