Possibility of increasing the liquid temperature in the problem of supercompression of a bubble by an acoustic action

Expansions and collapses of a vapor bubble at the pressure antinode of a standing acoustic wave in liquid acetone at temperatures 273 K and 293 K were compared. In the first case, the acoustic excitation amplitude and frequency were 15 bar and 19.3 kHz, whereas in the second case they were varied on the condition that the maximum radius of the bubble is equal to its value in the first case. A hydrodynamic model with realistic equations of state, which takes into account the non-equilibrium evaporation and condensation of vapor at the bubble surface, the unsteady thermal conductivity in vapor and liquid, was used. It was found that the bubble vapor compression in the case of 293 K and the acoustic excitation frequency and amplitude being two and three times higher than in the case of 273 K, respectively, is not less than in the case of 273 K.