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 language | English |
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Article number | R3 |
Journal | Journal of fluid mechanics |
Volume | 901 |
Early online date | 24 Aug 2020 |
DOIs | |
Publication status | Published - 25 Oct 2020 |
Keywords
- UT-Hybrid-D
- Gas/liquid flow
- Hydrodynamic noise
- Bubble dynamics