Cavitation inception from transverse waves in a thin liquid gap

It is well known that dielectric breakdown in a liquid generates cavitation bubbles and shock waves. Here we demonstrate that when the liquid is bounded by two solid glass boundaries (10–20-μm separation), rings of microscopic bubbles can be nucleated around the laser-induced cavitation bubble. Whil...

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Main Authors: Rapet, Julien, Quinto-Su, Pedro A., Ohl, Claus-Dieter
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/145441
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1454412023-02-28T19:26:35Z Cavitation inception from transverse waves in a thin liquid gap Rapet, Julien Quinto-Su, Pedro A. Ohl, Claus-Dieter School of Physical and Mathematical Sciences Science::Physics Cavitation Elastic Deformation It is well known that dielectric breakdown in a liquid generates cavitation bubbles and shock waves. Here we demonstrate that when the liquid is bounded by two solid glass boundaries (10–20-μm separation), rings of microscopic bubbles can be nucleated around the laser-induced cavitation bubble. While generally acoustic nucleation is achieved with longitudinal waves of sufficient tension, this work demonstrates that acoustic cavitation can also be generated from transverse waves. Our experiments identify three waves originating at the boundaries: the fastest is the bulk wave in the solid, followed by a leaky Rayleigh wave at the liquid-solid contact, which is trailed by a Lamb-type wave. For the latter, the two solid boundaries act as a wave guide and generate intense and short-lived cavitation activity within the gap. Streak photography and high-speed photography reveal the microsecond-duration cavitation-bubble dynamics, and subpicosecond strobe photography visualizes the mechanism of bubble nucleation from the accelerated surface. Simulations coupling the solid mechanics with the acoustics support the experimentally observed mechanisms of transverse-wave-induced cavitation inception. Published version 2020-12-21T09:21:28Z 2020-12-21T09:21:28Z 2020 Journal Article Rapet, J., Quinto-Su, P. A., & Ohl, C.-D. (2020). Cavitation inception from transverse waves in a thin liquid gap. Physical Review Applied, 14(2), 024041-. doi:10.1103/PhysRevApplied.14.024041 2331-7019 https://hdl.handle.net/10356/145441 10.1103/PhysRevApplied.14.024041 2 14 en Physical Review Applied © 2020 American Physical Society (APS). All rights reserved. This paper was published in Physical Review Applied and is made available with permission of American Physical Society (APS). application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Physics
Cavitation
Elastic Deformation
spellingShingle Science::Physics
Cavitation
Elastic Deformation
Rapet, Julien
Quinto-Su, Pedro A.
Ohl, Claus-Dieter
Cavitation inception from transverse waves in a thin liquid gap
description It is well known that dielectric breakdown in a liquid generates cavitation bubbles and shock waves. Here we demonstrate that when the liquid is bounded by two solid glass boundaries (10–20-μm separation), rings of microscopic bubbles can be nucleated around the laser-induced cavitation bubble. While generally acoustic nucleation is achieved with longitudinal waves of sufficient tension, this work demonstrates that acoustic cavitation can also be generated from transverse waves. Our experiments identify three waves originating at the boundaries: the fastest is the bulk wave in the solid, followed by a leaky Rayleigh wave at the liquid-solid contact, which is trailed by a Lamb-type wave. For the latter, the two solid boundaries act as a wave guide and generate intense and short-lived cavitation activity within the gap. Streak photography and high-speed photography reveal the microsecond-duration cavitation-bubble dynamics, and subpicosecond strobe photography visualizes the mechanism of bubble nucleation from the accelerated surface. Simulations coupling the solid mechanics with the acoustics support the experimentally observed mechanisms of transverse-wave-induced cavitation inception.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Rapet, Julien
Quinto-Su, Pedro A.
Ohl, Claus-Dieter
format Article
author Rapet, Julien
Quinto-Su, Pedro A.
Ohl, Claus-Dieter
author_sort Rapet, Julien
title Cavitation inception from transverse waves in a thin liquid gap
title_short Cavitation inception from transverse waves in a thin liquid gap
title_full Cavitation inception from transverse waves in a thin liquid gap
title_fullStr Cavitation inception from transverse waves in a thin liquid gap
title_full_unstemmed Cavitation inception from transverse waves in a thin liquid gap
title_sort cavitation inception from transverse waves in a thin liquid gap
publishDate 2020
url https://hdl.handle.net/10356/145441
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