采用高速摄影机对不同声压和频率作用下接触气泡的融合时间进行了实验研究,运用实验和数值计算相结合的方法分析了次Bjerknes力和最大径向振动速度对气泡融合时间的影响,结果表明在不同的超声声压和频率作用下,气泡的融合时间会随着次Bjerknes力和最大径向振动速度的增大而增大,对两个因素进行对比分析得到次Bjerknes力是影响气泡融合的关键因素。 A high-speed camera was used to study the fusion time of bubbles under different sound pressures and frequencies. The effects of sub-Bjerknes force and maximum radial vibration velocity on bubble fusion time were analyzed by means of experiments and numerical calculations. The results show that Under the different ultrasonic pressure and frequency, the bubble fusion time will increase with the increase of secondary Bjerknes force and the maximum radial vibration velocity. Comparing the two factors, the secondary Bjerknes force is the influence of bubble fusion The key factor.