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research article

Rebounds of deformed cavitation bubbles

Supponen, Outi  
•
Obreschkow, Danail  
•
Farhat, Mohamed  
October 16, 2018
Physical Review Fluids

Presented here are experiments clarifying how the deformation of cavitation bubbles affects their rebound. Rebound bubbles carry the remaining energy of a bubble following its initial collapse, which dissipates energy mainly through shock waves, jets, and heat. The rebound bubble undergoes its own collapse, generating such violent events anew, which can be even more damaging or effective than at first bubble collapse. However, modeling rebound bubbles is an ongoing challenge because of the lack of knowledge on the exact factors affecting their formation. Here we use single-laser-induced cavitation bubbles and deform them by variable gravity or by a neighboring free surface to quantify the effect of bubble deformation on the rebound bubbles. Within a wide range of deformations, the energy of the rebound bubble follows a logarithmic increase with the bubble's initial dipole deformation, regardless of the origin of this deformation.

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Type
research article
DOI
10.1103/PhysRevFluids.3.103604
Web of Science ID

WOS:000447469200002

Author(s)
Supponen, Outi  
Obreschkow, Danail  
Farhat, Mohamed  
Date Issued

2018-10-16

Publisher

AMER PHYSICAL SOC

Published in
Physical Review Fluids
Volume

3

Issue

10

Article Number

103604

Subjects

Physics, Fluids & Plasmas

•

Physics

•

intensity focused ultrasound

•

shock-wave emission

•

collapse

•

dynamics

•

liquid

•

sonoluminescence

•

luminescence

•

surface

•

jets

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LMH  
Available on Infoscience
December 13, 2018
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/152327
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