Numerical simulations of dynamics in the vibration of single cavitation bubble

According to the dynamical equation of the micro-bubble,the ultrasonic cavitation phenomenon of single bubble was numerically analyzed by an adjusted initial radius.The analysis indicated that the bubble vibration was very sensitive to some parameters.With the increase of bubbles′ initial radius,the collapse velocity of the bubble becomes higher,the vibration of cavitation bubble could keep on a steady process in a range of initial bubble radius.The strongest cavitation was estimated at the initial radius of 1.6 μm,and would weaken or vanish when kept the initial bubble radius increasing.Moreover,by comparing the calculated results with the published experimental data,it was found that the boundaries of the best cavitation could be improved greatly by considering the effect of compressible liquid model.