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EFFECT OF HEAT SUPPLY TO A NARROW BAND OF THE BOUNDARY LAYER ON ITS STABILITY

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Journal of Applied Mechanics and Technical Physics Aims and scope

Abstract

Stability of a subsonic boundary layer with heat supply into its narrow band is studied. The maximum length of the stable boundary layer in the case of heat supply is found to be approximately three times smaller as compared to the case of a thermally insulated wall without heat supply. The frequency range of disturbances and their growth rates are approximately doubled. In contrast to the case without heat supply, three-dimensional disturbances are the most rapidly growing disturbances. In the case of a heated wall, the growth rate of disturbances decreases after heat supply into the boundary layer, which may lead to an increase in the length of the laminar region of the boundary layer.

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  1. Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    S. A. Gaponov

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Gaponov, S.A. EFFECT OF HEAT SUPPLY TO A NARROW BAND OF THE BOUNDARY LAYER ON ITS STABILITY. J Appl Mech Tech Phy 61, 685–692 (2020). https://doi.org/10.1134/S0021894420050016

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  • DOI: https://doi.org/10.1134/S0021894420050016

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