Труды Института механики им. Р.Р. Мавлютова
Электронный научный журнал | Electronic Scientific Journal
Proceedings of the Mavlyutov Institute of Mechanics
Deviation of the bubble shape from the spherical one during supercompression of a bubble in liquid is considered. The main attention is focused on determining the law of the initial bubble nonsphericity distribution in the spherical harmonics. The most probable one is that with the amplitude reducing as the harmonics number increases. Such distribution is confirmed by the analysis of the bubble sphericity perturbation evolution at the bubble collapse near a solid wall and at coalesce of two identical bubbles. The influence of the bubble sphericity distortion during bubble compression on the deformation of a shock wave arising in the bubble and the dependence of the bubble nonsphericity evolution on the nonlinear interaction between the distortions in the form of different harmonics are also discussed.