Journal article
Effect of surfactants on single bubble sonoluminescence behavior and bubble surface stability
T Leong, K Yasui, K Kato, D Harvie, M Ashokkumar, S Kentish
Physical Review E Statistical Nonlinear and Soft Matter Physics | AMER PHYSICAL SOC | Published : 2014
Abstract
The effect of surfactants on the radial dynamics of a single sonoluminescing bubble has been investigated. Experimentally, it is observed that an increase in the surfactant concentration leads to a decline in the oscillation amplitude and hence light emission intensity. Numerical simulations support this result, showing that under the driving pressures required to achieve single bubble sonoluminescence (SBSL), the surface properties, namely, the surface elasticity and dilatational viscosity, contribute to the damping of the radial amplitude in the bubble oscillation. In most cases this stabilizes the bubble surface, and contributes to a decreased light intensity. A stronger driving pressure ..
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Grants
Awarded by Australian Research Council
Funding Acknowledgements
The authors would like to acknowledge the Postgraduate Overseas Research Experience Scheme awarded by the University of Melbourne, the Research Travel Conference Assistance Scheme awarded by the School of Engineering (The University of Melbourne), the Travel Scholarship awarded by the Particulate Fluids Processing Centre (The University of Melbourne) and a Discovery grant from the Australian Research Council (DP0771094), which provided the funding that enabled this work to be performed. The National Institute of Advanced Industrial Science and Technology Chubu branch is also acknowledged for hosting the work.