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Numerical simulation of bubble dynamics in deformable vessels

Coralic, Vedran and Colonius, Tim (2011) Numerical simulation of bubble dynamics in deformable vessels. In: 161st Meeting of the Acoustical Society of America, 23-27 May 2011, Seattle, WA.

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The growth and collapse of cavitation bubbles has been implicated as a potential damage mechanism leading to the rupture of blood vessels in shock wave lithotripsy (SWL) [Bailey et al., in The Fifth International Symposium on Cavitation, Osaka, Japan (2003)]. While this phenomenon has been investigated numerically, the resulting simulations have often assumed some degree of symmetry and have often failed to include a large number of influential physics, such as viscosity, compressibility, surface tension, phase change, and fluid‐structure interactions (FSI). We present here our efforts to explore the role that cavitation bubbles play in the rupture of blood vessels in SWL and to improve upon the current state of the numerical approach. We have developed a 3‐D, high‐order accurate, shock‐ and interface‐capturing, multicomponent flow algorithm that accounts for the effects of surface tension and FSI. The preliminary results for the case of a bubble collapse, induced by a shock wave lithotripter pulse and occurring inside a deformable vessel, are presented.

Item Type:Conference or Workshop Item (Paper)
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URLURL TypeDescription Program
Colonius, Tim0000-0003-0326-3909
Additional Information:© 2011 Acoustical Society of America. Published Online: 08 April 2011. This research was supported by the NIH (Grant No. 2PO1DK043881.
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Subject Keywords:Cardiovascular system; Computer simulation; Shock waves; Cavitation bubbles; Bubble dynamics; Medical diagnosis
Record Number:CaltechAUTHORS:20190717-102319126
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97202
Deposited By: Melissa Ray
Deposited On:18 Jul 2019 16:38
Last Modified:16 Nov 2021 17:29

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