Studying the effect of multiple air bubbles on the collapse strength of a cavitation bubble can aid in understanding the mechanism of air entrainment alleviating the cavitation erosion and enhance the aeration effects in hydraulic engineering. A cavitation bubble is generated by the spark-generated system. Air bubbles are arranged in three manners: two air bubbles on the same side, one air bubble on either side, and four air bubbles around. The intensity of the cavitation bubble collapse noise is estimated using a hydrophone. The results show that, in the range in which the air bubbles can interact with the cavitation bubble, the relative distance, size, and number of the air bubbles and cavitation bubble can considerably influence the migration direction, the oscillation time and the collapse sound pressure of the cavitation bubble. For the first time, it is observed that air bubbles split a cavitation bubble into two subcavitation bubbles. In aeration methods, under the same aeration concentration, the air bubbles should be small, numerous, and evenly distributed.

研究多个气泡对空化气泡破裂强度的影响，有助于理解夹带空气的机理，从而减轻空化腐蚀并增强水利工程中的曝气效果。火花产生系统会产生气蚀气泡。气泡以三种方式排列：同一侧的两个气泡，任一侧的一个气泡和周围的四个气泡。使用水听器估计气蚀气泡破裂噪声的强度。结果表明，在气泡与空化气泡相互作用的范围内，气泡与空化气泡的相对距离，大小和数量会极大地影响迁移方向，振荡时间和坍塌声压。的气泡。首次观察到气泡将空化气泡分成两个子空化气泡。在曝气方法中，在相同的曝气浓度下，气泡应小，多且均匀分布。