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research article

Confined shocks inside isolated liquid volumes: A new path of erosion?

Obreschkow, D.  
•
Dorsaz, N.  
•
Kobel, P.  
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2011
Physics of Fluids

The unique confinement of shock waves inside isolated liquid volumes amplifies the density of shock–liquid interactions. We investigate this universal principle through an interdisciplinary study of shock-induced cavitation inside liquid volumes, isolated in 2 and 3 dimensions. By combining high-speed visualizations of ideal water drops realized in microgravity with smoothed particle simulations, we evidence strong shock-induced cavitation at the focus of the confined shocks. We extend this analysis to ground-observations of jets and drops using an analytic model and argue that cavitation caused by trapped shocks offers a distinct mechanism of erosion in high-speed impacts (>rsim100ms-1).

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Type
research article
DOI
10.1063/1.3647583
Web of Science ID

WOS:000296528000002

Author(s)
Obreschkow, D.  
•
Dorsaz, N.  
•
Kobel, P.  
•
De Bosset, A.
•
Tinguely, M.  
•
Field, J.
•
Farhat, M.  
Date Issued

2011

Publisher

American Institute of Physics

Published in
Physics of Fluids
Volume

23

Issue

10

Article Number

101702

Subjects

cavitation

•

drops

•

shockwave

•

collapse

•

bubble

Note

FNS ; Flash and Splash

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LMH  
Available on Infoscience
October 22, 2011
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/71839
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