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Updated: Jul 13, 2026
08:19
Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
Published on: May 9, 2021
Dynamics of a single cavitating and reacting bubble
Guillermo Hauke1, Daniel Fuster, Cesar Dopazo
1Departmento de Mecanica de Fluidos, Centro Politecnico Superior, C/Maria de Luna 3, 50.018 Zaragoza, Spain. ghauke@unizar.es
Summary
This study enhances cavitating bubble dynamics models by including radial fluid variations, chemical reactions, and heat/mass transfer. Realistic predictions require considering water evaporation, condensation, and boundary layers for accurate dissociation reactions.
Area of Science:
- Fluid dynamics
- Chemical kinetics
- Thermodynamics
Background:
- Simplified models of cavitating bubbles often neglect internal fluid properties, chemical reactions, and interfacial transport.
- Existing research lacks comprehensive models that account for radial variations and complex phenomena within bubbles.
Purpose of the Study:
- To develop a more realistic model for cavitating bubble dynamics.
- To investigate the impact of radial fluid property dependence, chemical reactions, and interfacial transport phenomena.
Main Methods:
- Incorporating radial dependence of fluid variables within the bubble.
- Modeling chemical reactions occurring inside the gas bubble.
- Accounting for heat and mass transfer across the bubble interface.
Main Results:
- Water evaporation and condensation are critical for estimating water dissociation into OH radicals.
- Thermal and mass boundary layers significantly influence bubble dynamics.
- Radial variations in chemical concentrations are essential for accurate predictions.
Conclusions:
- A comprehensive model including radial variations and interfacial transport provides more realistic insights into cavitating bubble dynamics.
- Accurate prediction of dissociation reactions necessitates detailed consideration of phase change and boundary layer effects.
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