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Numerical simulations of the shockwave induced collapse of bubbles near surfaces

Bempedelis, N; Ventikos, Y; (2018) Numerical simulations of the shockwave induced collapse of bubbles near surfaces. In: Katz, Joseph, (ed.) Proceedings of the 10th International Symposium on Cavitation (CAV2018). (pp. pp. 819-822). ASME: Baltimore, Maryland. Green open access

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Abstract

In the study of collapsing bubbles and their relation to surface erosion, two mechanisms are identified as of major significance: the high-speed liquid jet and the water-hammer shock wave that is subsequently formed. In the current work, we suggest that secondary mechanisms such as the emission of shockwaves following the collapse of the bubble remains and the late-time wave interactions may also be of importance when it comes to surface erosion. We examine our hypothesis by considering the collapse of a bubble by a shock wave that runs in a direction that is parallel to a solid surface.

Type: Proceedings paper
Title: Numerical simulations of the shockwave induced collapse of bubbles near surfaces
Event: 10th International Symposium on Cavitation (CAV2018)
Location: Baltimore, Maryland, USA
Dates: 14 May 2019 - 16 May 2018
ISBN-13: 978-0-7918-6185-1
Open access status: An open access version is available from UCL Discovery
DOI: 10.1115/1.861851_ch156
Publisher version: https://doi.org/10.1115/1.861851_ch156
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: cavitation; shock waves; bubble collapse; front tracking;
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/10072077
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