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Vapor bubbles in flow and acoustic fields.

Andrea Prosperetti1, Yue Hao

  • 1Department of Mechanical Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA. prosperetti@jhu.edu

Annals of the New York Academy of Sciences
|November 26, 2002
PubMed
Summary
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This review examines how bubbles in hot liquids interact with acoustic and flow fields. It details phenomena like condensation, heat diffusion, and forces acting on vapor-filled bubbles.

Area of Science:

  • Fluid dynamics
  • Acoustics
  • Thermodynamics

Background:

  • Bubbles in hot liquids, primarily filled with vapor, exhibit complex behaviors when subjected to acoustic and flow fields.
  • Understanding these interactions is crucial for applications involving boiling and phase change.

Purpose of the Study:

  • To review the multifaceted interactions between bubbles and acoustic/flow fields in hot liquids.
  • To elucidate the mechanisms governing bubble behavior, including condensation, heat transfer, and forces.

Main Methods:

  • Literature review of theoretical and experimental studies on bubble dynamics.
  • Analysis of phenomena such as translation effects on condensation, pressure gradient actions, and rectified heat diffusion.
  • Examination of the influence of permanent gases and Bjerknes forces.

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Main Results:

  • Translation significantly impacts condensation rates in subcooled liquids.
  • Pressure gradients and rectified heat diffusion play key roles in bubble dynamics.
  • Permanent gases and pressure-radiation forces modify bubble behavior.

Conclusions:

  • Bubble behavior in hot liquids is governed by a combination of thermal, hydrodynamic, and acoustic effects.
  • The presence of permanent gas and Bjerknes forces introduces further complexity to bubble dynamics.
  • Further research is needed to fully model these interactions for various applications.