The cavitation is directly related to the safety of many large water conservancy projects.There are two types of cavitation bubbles,one is generated by the gas nucleus,called the non gas-beating cavitation bubble,and another is generated by the gas bubble,called the gas-bearing cavitation bubble.They have significantly different collapsing characteristics.This paper studies the cavitation bubbles,generated by a high voltage pulse bubble generation system,and discusses the gas-bearing cavitation bubble's characteristics a from the aspects of the collapse process,the cycle,the size and the collapse strength.It is shown that:(1) the collapse of the gas-bearing cavitation bubbles can be divided into two types:the centripetal collapse and the bisected collapse,(2) the cycle period and the size of the gas-bearing cavitation bubble increase significantly,and the increase norm has a certain relationship with the bubble diameter ratio,(3) the collapse strength of the gas-bearing cavitation bubble decreases significantly.The larger the bubble diameter ratio,the greater the effect will be.
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