ISSN 2542–0380
Труды Института механики им. Р.Р. Мавлютова
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Proceedings of the Mavlyutov Institute of Mechanics


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Toporkov D.Yu. Evolution of small sphericity distortion of a bubble in deuterated acetone with allowing for the vapor density effect Proceedings of the Institute of Mechanics of Ufa Branch of RAS. 5 (2007). 295–300.
2007. Vol. 5. Issue 1, Pp. 295–300
URL: http://proc.uimech.org/uim2007.1.038
DOI: 10.21662/uim2007.1.038
Evolution of small sphericity distortion of a bubble in deuterated acetone with allowing for the vapor density effect
Toporkov D.Yu.
Institute of Mechanics and Engineering, Kazan

Abstract

The evolution of a small distortion of the spherical shape of a vapor bubble during its single superstrong expansion and compression in deuterated acetone is studied. The spherical component of the vapor and liquid motion is governed by the hydrodynamics equations, allowing for nonequilibrium evaporation and condensation on the interphase surface. The non-spherical component of the interphase boundary motion is calculated taking into account approximate influence of the vapor density and inhomogeneity of the spatial distribution of the vapor pressure. It is found that the Rayleigh-Taylor instability is practically not appeared in the case with account of the vapor density influence whereas it has a significant effect on the shape of the bubble in the final part of its compression in the case with neglecting this influence.

Keywords

stability of the spherical shape,
vapor bubble,
distortion,
deuterated acetone