Modelling the thermal behaviour of gas bubbles

Guangzhao Zhou, Andrea Prosperetti*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

In most cases, the dominant mechanism of energy dissipation for a bubble in volume oscillations is the thermal energy exchanged with the liquid. The process is subtle and its precise description a matter of some complexity. These features have prevented its ready incorporation in many applications, which forcedly have to rely on the rather inaccurate polytropic pressure-volume relation. This paper develops two approximate models of the thermal interaction, formulated in terms of ordinary differential equations, which can be readily added to standard Rayleigh-Plesset-Type formulations at a modest computational cost.

Original languageEnglish
Article numberR3
JournalJournal of fluid mechanics
Volume901
DOIs
Publication statusPublished - 25 Oct 2020

Keywords

  • UT-Hybrid-D
  • Gas/liquid flow
  • Hydrodynamic noise
  • Bubble dynamics

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