EXPERIMENTAL INVESTIGATION OF THE MECHANISM OF CAVITATION EMULSIFICATION EMPLOYING HIGH-SPEED PHOTOGRAPHY
Chenghao Wang, Dejun Zhang, ZONG JIAN, (1)中国科学院物理研究所; (2)中国科学院物理研究所,中国科学院湖北物理研究所
Abstract
Chenghao Wang, Dejun Zhang, ZONG JIAN, (1)中国科学院物理研究所; (2)中国科学院物理研究所,中国科学院湖北物理研究所
Abstract
In this work results are given for the experimental investigation of the me-chanism of cavitation emulsification by means of high-speed photography. The results show that: 1) Two fundamental types of cavitation emulsification occur simultaneously at the moment of a single cavitation bubble collapse. It thus appears that: emulsifica-tion is induced by the shock waves generated in liquids at the moment of cavitation bubble collapse; 2) In contrast with the "suction" model suggested by Nedouzhii, the process of cavitation emulsification would be better described by a "crushing" model.
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In this work results are given for the experimental investigation of the me-chanism of cavitation emulsification by means of high-speed photography. The results show that: 1) Two fundamental types of cavitation emulsification occur simultaneously at the moment of a single cavitation bubble collapse. It thus appears that: emulsifica-tion is induced by the shock waves generated in liquids at the moment of cavitation bubble collapse; 2) In contrast with the "suction" model suggested by Nedouzhii, the process of cavitation emulsification would be better described by a "crushing" model.
Key concepts: Cavitation, High-speed photography, Bubble, Mechanics, Materials science, Shock (circulatory), Suction, Moment (physics)