Work

On the criteria of jet types during a bubble collapse near the tissue-mimicking boundary

Year: 2025

Type: article

Abstract: The collapse of a cavitation bubble near a tissue membrane generates intense microscopic flows, emits shock wave, and can lead to membrane damage. Experimental works show that the collapse of a cavitation bubble leads to more violent two axial jets flow with decreasing bubble–boundary distance. The critical stand-off distance for the formation of such a jet flow varies largely under different material properties. We investigate the evolution of cavitation induced jet flow experimentally and theoretically comprehensively. A dimensionless impulse is proposed based on image-source model, considering the influence of boundary. A regime map is constructed, revealing a unique law for various materials. The current work may offer insight into the application of cavitation bubbles in biomedical engineering.

Source: Applied Physics Letters

DOI: 10.1063/5.0288620

Authors: Jianlin Huang, Yuxue Zhong, Yuzhe Fan, Jingzhu Wang, Yiwei Wang

Institutions: Chinese Academy of Sciences, Institute of Mechanics, University of Chinese Academy of Sciences, Otto-von-Guericke-Universität Magdeburg

Language: English

Topic: Ultrasound and Cavitation Phenomena

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Natural Science Foundation of China, Youth Innovation Promotion Association of the Chinese Academy of Sciences

Awards: G3321013484, G6141858082, G6531065145, G7880049001