On the basis of the open source software OpenFOAM

a bubble-water two-phase flow numerical simulation model under oscillation acceleration condition was established.Validation of this model was conducted and the simulation results agreed well with the experimental results. Then this model was used to investigate the bubble behavior under oscillation acceleration condition.The results show that

with the same oscillation angular frequency

the larger the oscillation amplitude

the greater the bubble's deformation and displacement;with the same oscillation amplitude

the larger the oscillation angular frequency

the greater the bubble's deformation and displacement;when the oscillation angular was larger than a certain value

the serious deformation would cause breakage of the bubble.Comparison of the bubble rising behavior with and without oscillation indicated that

oscillation make the bubble rise with instable shape and position

and confused the flow filed.