The pressure field in the liquid column in the tube-arrest method  

作　　者：应崇福 李超 徐德龙 邓京军 

机构地区：[1]Institute of Acoustics,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2008年第7期2580-2589,共10页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No 10434070)

摘　　要：We have been using the method of tube-arrest as a means of producing transient single cavitation bubble. In the present paper we seek to comprehend the mechanism of production and inquire into the structure of the ab initio pressure field in the arrested liquid column. The generated pressure wave is shown by combining the theoretical analysis with the experimental observation to be a slightly varied version of water hammer. With relatively clean liquid, the magnitude of the tension peak generating the TSB is likely to reach of several millions Pa. It is also shown that the so generated cavitation bubble originating from the gas-containing bulk liquid is in ‘violent’ motion.We have been using the method of tube-arrest as a means of producing transient single cavitation bubble. In the present paper we seek to comprehend the mechanism of production and inquire into the structure of the ab initio pressure field in the arrested liquid column. The generated pressure wave is shown by combining the theoretical analysis with the experimental observation to be a slightly varied version of water hammer. With relatively clean liquid, the magnitude of the tension peak generating the TSB is likely to reach of several millions Pa. It is also shown that the so generated cavitation bubble originating from the gas-containing bulk liquid is in ‘violent’ motion.

关 键 词：tube-arrest method original pressure wave water hammer origin of violent cavitation bubble 

分 类 号：O427.4[理学—声学]