Numerical Simulation of Bubbly Cavitating Flow in Shock Wave Lithotripsy
- Creators
- Tanguay, Michel
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Colonius, Tim
Abstract
The bubbly cavitating flow generated by a lithotriptor is computed using an ensemble averaged two-phase flow model. The time-dependent, compressible flow computation is divided into two separate calculations: the refocusing of a spherical pulse by an ellipsoidal reflector, and the evolution of the steepening wave including the cavitating bubble cloud it generates. The first computation is single phase and is done in prolate spheroidal coordinates in order to have the surface of the ellipsoidal reflector 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.
Additional Information
We would like to thank the PPG investigators, particularly Murtuza Lokhandwalla and Mike Bailey for their insightful comments on this work as well as for sharing their experimental data. This paper is dedicated to the memory of Professor Brad Sturtevant, who provided the "spark" for this work as well as a myriad of useful suggestions; we miss him greatly. This work was supported by NIH under grant PO1 DK43881.Attached Files
Accepted Version - TanguayColonius2001.pdf
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Additional details
- Eprint ID
- 97450
- Resolver ID
- CaltechAUTHORS:20190726-104729308
- PO1 DK43881
- NIH
- Created
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2019-07-31Created from EPrint's datestamp field
- Updated
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2019-10-03Created from EPrint's last_modified field