Numerical Simulation of Bubbly Cavitating Flow in Shock Wave Lithotripsy

Tanguay, Michel and Colonius, Tim (2001) Numerical Simulation of Bubbly Cavitating Flow in Shock Wave Lithotripsy. In: CAV 2001: Fourth International Symposium on Cavitation, June 20-23, 2001, California Institute of Technology, Pasadena, CA USA.

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Abstract

The bubbly cavitating .ow generated by a lithotriptor is computed using an ensemble averaged two-phase .ow model. The time-dependent, compressible .ow computation is divided into two separate calculations: the refocusing of a spherical pulse by an ellipsoidal re.ector, and the evolution of the steepening wave including the cavitating bubble cloud it generates. The .rst computation is single phase and is done in prolate spheroidal coordinates in order to have the surface of the ellipsoidal re.ector aligned with the computation grid. The output of this simulation is then fed to the two-phase cylindrical coordinates domain. Preliminary results and qualitative comparison to experimental observation are presented.

EPrint Type:	Conference or Workshop Item (Lecture)
Uncontrolled Keywords:	numerical simulation bubble cavitation shock wave lithotripsy
Subjects:	All Records Session A7 Bubbly Flows 3
ID Code:	350
Deposited By:	Michel Tanguay
Deposited On:	29 May 2001
Record Number:	CAV2001:sessionB6.004
Official Persistent URL:	http://resolver.caltech.edu/CAV2001:sessionB6.004
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