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A Reduced-Order Model of Heat Transfer Effects on the Dynamics of Bubbles

[+] Author Affiliations
Al Preston, Tim Colonius, Christopher E. Brennen

California Institute of Technology, Pasadena, CA

Paper No. FEDSM2002-31026, pp. 479-484; 6 pages
doi:10.1115/FEDSM2002-31026
From:
  • ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
  • Volume 1: Fora, Parts A and B
  • Montreal, Quebec, Canada, July 14–18, 2002
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3615-0 | eISBN: 0-7918-3600-2
  • Copyright © 2002 by ASME

abstract

The Rayleigh-Plesset equation has been used extensively to model spherical bubble dynamics, yet it has been shown that it cannot correctly capture damping effects due to mass and thermal diffusion. Radial diffusion equations may be solved for a single bubble, but these are too computationally expensive to implement into a continuum model for bubbly cavitating flows since the diffusion equations must be solved at each position in the flow. The goal of the present research is to derive reduced-order models that account for thermal and mass diffusion. We present a model that can capture the damping effects of the diffusion processes in two ODE’s, and gives better results than previous models.

Copyright © 2002 by ASME

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