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Effects of bulk viscosity in non-linear bubble dynamics

Moshaii, A ; Sharif University of Technology | 2004

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  1. Type of Document: Article
  2. DOI: 10.1088/0953-8984/16/10/001
  3. Publisher: 2004
  4. Abstract:
  5. The non-linear bubble dynamics equations in a compressible liquid have been modified by considering the effects of compressibility of both the liquid and the gas at the bubble interface. A new bubble boundary equation has been derived, which includes a new term resulting from the liquid bulk viscosity effect. The influence of this term has been numerically investigated by considering the effects of water vapour and chemical reactions inside the bubble. The results clearly indicate that the new term has an important damping role at the collapse, so that its consideration dramatically decreases the amplitude of the bubble rebounds after the collapse. This damping feature is more remarkable for higher driving pressures
  6. Keywords:
  7. Approximation theory ; Viscosity of liquids ; Vapors ; Nonlinear equations ; Interfaces (materials) ; Computer simulation ; Compressible flow ; Boundary conditions
  8. Source: Journal of Physics Condensed Matter ; Volume 16, Issue 10 , 2004 , Pages 1687-1694 ; 09538984 (ISSN)
  9. URL: https://iopscience.iop.org/article/10.1088/0953-8984/16/10/001