The dynamics of a bubble under acoustic field and a magnetic field is researched by regarding magnetic liquid as a working medium. The effects of the dimensionless frequency and strength of acoustic field and the dimensionless strength of magnetic field on bubble dynamical behaviors by Rayleigh-Plesset equation are numerically simulated. The results show that the existence of the magnetic field affects the movement characteristics of a bubble under acoustic wave, and low magnetic field intensity is helpful to improve the effect of acoustic cavitation process. But if the bubble collapse stage applied magnetic field, results show that the stronger the magnetic field, the more conducive to cavitation occurs. This is of important theoretical significance not only for further research bubble movement characteristic by acoustic and magnetic field interaction but also enhancing and improving the cavitation degration of organic pollutant technology.

acoustic field; magnetic field; bubble; bifurcation