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Research Papers: Multiphase Flows

Modeling of Cavitation Bubble Dynamics in Multicomponent Mixtures

[+] Author and Article Information
Si Huang

College of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou 510641, China

A. A. Mohamad

Department of Mechanical Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada

J. Fluids Eng 131(3), 031301 (Feb 04, 2009) (5 pages) doi:10.1115/1.3077138 History: Received September 25, 2007; Revised November 16, 2008; Published February 04, 2009

Investigation on cavitation in multicomponent (solid-liquid and liquid-liquid) mixtures has many applications in the industries and engineering. In this paper, for simulation of multicomponent mixtures, a set of equations with first-order bubble-wall Mach number is derived for a single spherical bubble in quasihomogeneous mixtures. Cavitation bubble behaviors in several kinds of liquid-liquid and solid-liquid mixtures are numerically calculated based on the current model, including the temporal variations in the bubble radius, pressure, and temperature inside the bubble. Specifically, the analysis is focused on the impact of pressure and temperature, while the bubble collapses in the mixtures. The computed results are compared with the previously reported experimental ones to demonstrate the validity of the current model and the numerical procedures.

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Copyright © 2009 by American Society of Mechanical Engineers
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Figures

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Figure 4

Comparison of computed pc¯ and measured W¯ in liquid-liquid mixtures: (a) water-acetone, (b) water-ethanol, and (c) water-glycerol

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Figure 5

Comparison of computed pc¯ and measured W¯ in quartz-water-glycerol (x=0.2, ds=10 μm)

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Figure 3

Bubble collapse pressure pc in water-glycerol mixtures

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Figure 2

Bubble collapse pressure pc in quartz-water mixtures

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Figure 1

Variation in bubble radius, pressure, and temperature

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