title: Memory effect and redistribution of cavitation nuclei in a thin liquid layer.
abstract: Temporal evolution and spatial distribution of acoustic cavitation structures in a thin liquid layer were investigated experimentally with high-speed photography. The inception and disappearance processes of cavitation bubble cloud revealed that the metastable cavitaton structures formed in the thin liquid layer caused a long-term "memory effect". A factor which weakens the memory effect was identified. The distribution of cavitation nuclei was investigated by changing the temporal decay of the memory effect.
authors.affiliation: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China. Electronic address: blx@mail.ioa.ac.cn.
authors.forename: Lixin
authors.initials: L
authors.lastname: Bai
authors.affiliation: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Weijun
authors.initials: W
authors.lastname: Lin
authors.affiliation: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Pengfei
authors.initials: P
authors.lastname: Wu
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: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Dong
authors.initials: D
authors.lastname: Wang
authors.affiliation: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Lishuo
authors.initials: L
authors.lastname: Chen
keywords: Cavitation structure; Memory effect; Nuclei; Ultrasonic cavitation