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JOURNALS // Zhurnal Tekhnicheskoi Fiziki // Archive

Zhurnal Tekhnicheskoi Fiziki, 2023 Volume 93, Issue 2, Pages 202–206 (Mi jtf6933)

Gases and Fluids

Anomalous response of a stratified medium to volume heat release

L. Kh. Ingel'ab

a Institute of Experimental Meteorology, Scientific and Production Association "Typhoon", 249038 Obninsk, Russia
b Obukhov Institute of Atmospheric Physics, Russian Academy of Science 119017 Moscow, Russia

Abstract: A linear stationary problem of the response of a semi-bounded stably stratified fluid/gaseous medium to volumetric spatially inhomogeneous heat release in the Boussinesq approximation is theoretically investigated. The most important similarity parameters are the analogue of the Rayleigh number and the aspect ratio of the source of buoyancy. For a perturbation in the form of a single horizontal harmonic, an analytical solution has been found that makes it possible to analyze a number of significant regularities. The nontrivial possibility of an intense hydrothermodynamic response to a weak heat release at a certain ratio of the mentioned parameters is found.

Keywords: stratified medium, volume heat release, convection, density flows, analytical solution, intense response, instability.

Received: 11.09.2022
Revised: 06.11.2022
Accepted: 13.11.2022

DOI: 10.21883/JTF.2023.02.54493.222-22



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