title: Generation and control of acoustic cavitation structure.
abstract: The generation and control of acoustic cavitation structure are a prerequisite for application of cavitation in the field of ultrasonic sonochemistry and ultrasonic cleaning. The generation and control of several typical acoustic cavitation structures (conical bubble structure, smoker, acoustic Lichtenberg figure, tailing bubble structure, jet-induced bubble structures) in a 20-50 kHz ultrasonic field are investigated. Cavitation bubbles tend to move along the direction of pressure drop in the region in front of radiating surface, which are the premise and the foundation of some strong acoustic cavitation structure formation. The nuclei source of above-mentioned acoustic cavitation structures is analyzed. The relationship and mutual transformation of these acoustic cavitation structures are discussed.
authors.affiliation: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China. Electronic address: lixin.bai@gmail.com.
authors.forename: Lixin
authors.initials: L
authors.lastname: Bai
authors.affiliation: Sichuan University, Chengdu 610065, China.
authors.forename: Weilin
authors.initials: W
authors.lastname: Xu
authors.affiliation: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Jingjun
authors.initials: J
authors.lastname: Deng
authors.affiliation: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Chao
authors.initials: C
authors.lastname: Li
authors.affiliation: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Delong
authors.initials: D
authors.lastname: Xu
authors.affiliation: Liaoning Technical University, Hu Ludao 123000, China.
authors.forename: Yandong
authors.initials: Y
authors.lastname: Gao
keywords: Bubble structure; Control of cavitation; Ultrasonic cavitation