| Abstract: | The evolution of small perturbations of the spherical shape of a vapor bubble in the process of its single strong expansion
and compression in deuterated acetone is studied. In the mathematical model used the motion of vapor and liquid is broken
down into the spherical component and its small nonspherical perturbation. The spherical component is described by the fluid
dynamics equations with account for time-dependent heat conduction and evaporation and condensation on the liquid-vapor interface
using equations of state constructed from experimental data. In describing the nonspherical component the liquid viscosity
and the surface tension are taken into account, while the effect of the bubble content is disregarded. Certain simple analytical
formulas are presented which describe the bubble radius at the moment of maximum expansion, its variation in the compression
stage, and the evolution of the bubble sphericity distortion in compression. |
