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Updated: May 27, 2026

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
Published on: May 9, 2021
[Finite element analysis of the dynamic behaviour of a microbubble within a rigid micro-tube]
Xiaohui Qiu1, Yuanyuan Shen, Chienting Chin
1Department of Biomedical Engineering, Shenthen University, Shenzhen 518060, China.
Abstract:
The dynamic behaviour of a microbubble confined within a rigid micro-tube was studied using finite element method. The results indicated that the microbubble oscillation was limited when constrained within the micro-tube. Both the expansion ratio of its effective radius and natural frequency decreased with the decrease of the tube radius. Meanwhile, the deformation of the microbubble was non-spherical and became more significant when the ultrasound pressure amplitude increased. The dynamic behaviour in micro-tube was different from that in infinite liquid.
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