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Published December 3, 2015 | Published
Journal Article Open

Modeling and experimental analysis of acoustic cavitation bubbles for Burst Wave Lithotripsy

Abstract

Cavitation bubbles initiated by focused ultrasound waves are investigated through experiments and modeling. Pulses of focused ultrasound with a frequency of 335 kHz and a peak negative pressure of 8 MPa is generated in a water tank by a piezoelectric transducer to initiate cavitation. The pressure field is modeled by solving the Euler equations and used to simulate single bubble oscillation. The characteristics of cavitation bubbles observed by highspeed photography qualitatively agree with the simulation results. Finally, bubble clouds are captured using acoustic B-mode imaging that works synchronized with high-speed photography.

Additional Information

© 2015 IOP Publishing Ltd. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Accepted papers received: 21 October 2015. Published online: 3 December 2015. 9th International Symposium on Cavitation (CAV2015). The authors thank Dr. Julianna Simon and Barbrina Dunmire for support in the experimental measurements, Prof. Jonathan Freund, Dr. Pooya Movahed, Dr. Vedran Coralic, and Jomela Meng for helpful discussions. The work was supported by the National Institutes of Health under grant 2PO1-DK043881.

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