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Comparative study of the dynamics of laser and acoustically generated bubbles in viscoelastic media

Wilson, Chad T. and Hall, Timothy L. and Johnsen, Eric and Mancia, Lauren and Rodriguez, Mauro and Lundt, Jonathan E. and Colonius, Tim and Henann, David L. and Franck, Christian and Xu, Zhen and Sukovich, Jonathan R. (2019) Comparative study of the dynamics of laser and acoustically generated bubbles in viscoelastic media. Physical Review E, 99 (4). Art. No. 043103. ISSN 2470-0045. https://resolver.caltech.edu/CaltechAUTHORS:20190410-092338329

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Abstract

Experimental observations of the growth and collapse of acoustically and laser-nucleated single bubbles in water and agarose gels of varying stiffness are presented. The maximum radii of generated bubbles decreased as the stiffness of the media increased for both nucleation modalities, but the maximum radii of laser-nucleated bubbles decreased more rapidly than acoustically nucleated bubbles as the gel stiffness increased. For water and low stiffness gels, the collapse times were well predicted by a Rayleigh cavity, but bubbles collapsed faster than predicted in the higher stiffness gels. The growth and collapse phases occurred symmetrically (in time) about the maximum radius in water but not in gels, where the duration of the growth phase decreased more than the collapse phase as gel stiffness increased. Numerical simulations of the bubble dynamics in viscoelastic media showed varying degrees of success in accurately predicting the observations.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/physreve.99.043103DOIArticle
ORCID:
AuthorORCID
Mancia, Lauren0000-0003-4366-1944
Colonius, Tim0000-0003-0326-3909
Additional Information:© 2019 American Physical Society. Received 27 August 2018; revised manuscript received 24 January 2019; published 10 April 2019. The authors thank Alice Lux Fawzi for her help in organizing this project. This work supported by ONR Grant No. N00014-17-1-2058 (under Dr. T. Bentley) and the Focused Ultrasound Foundation Grant No. 24332.
Funders:
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-17-1-2058
Focused Ultrasound Foundation24332
Issue or Number:4
Record Number:CaltechAUTHORS:20190410-092338329
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190410-092338329
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94614
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:10 Apr 2019 17:53
Last Modified:09 Mar 2020 13:19

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