Development of cellular instability of liquid film under gas-dynamic stream

A. P. Drozhzhin

Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk

Abstract: The stability loss of a thin liquid shell, when taking a spheroid shape, has been first found experimentally. The shaping of the shell followed by its breakdown is developed under high-temperature gas stream consisting of combustion products. The stability loss of the thin shell leads to forming of staggered areas. The shell in these areas thin synchronously up to its rupture resulting to the formation of cellular structure. The obtained results can be used in developing the model of combustion of water-base foam resulting from the suppression of liquid fuel fire.

Keywords: stability loss, thin liquid film, gas-dynamic stream, foam combustion.

Received: 04.04.2025
Revised: 04.04.2025
Accepted: 24.04.2025

DOI: 10.61011/PJTF.2025.14.60771.20335

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