Dynamic Behavior of Bubble Interface During Boiling
Journal
Journal of Thermal Science
Journal Volume
11
Journal Issue
4
Pages
308-319
Date Issued
2002
Author(s)
Abstract
A brief review with discussions is conducted for some pertinent works, done and ongoing in the Laboratory of Phase-Change and Interfacial Phenomena at Tsinghua University, on interfacial behavior of vapor bubbles and interfacial transport phenomena during liquid nucleation boiling. From a sequence of experimental investigations, some new phenomena, particularly, the visually observed interfacial transport phenomena or processes including jet-like flows, bubble interaction and spatial scale effect, were described in this article. The interracial effects and transport phenomena associated with surface tension gradients caused by temperature and concentration variations were theoretically analyzed to reveal the marked influence on bubble interfacial shape and dynamic behavior, the bubble dynamics including nucleation, bubble motion and coalescence. Several theoretical models and methods were proposed to describe the dynamic characteristics and explain the physics of interfacial phenomena/processes. The special emphases were addressed on the mass and heat transfer occurring at the interface of bubbles.
Subjects
Boiling
Bubble
Interfacial phenomena
Phase change
Transport process
Type
journal article