Home Books eBooks Journals References & Proceedings Authors, Editors, Reviewers A-Z Product Index Awards
Transport Phenomena in Thermal Engineering. Volume 2

ISBN:
1-56700-015-0 (Print)

AN ANALYTICAL STUDY ON THE BEHAVIOR OF A BUBBLE IN A MICRO TWO-PHASE CLOSED THERMOSYPHON

Yoon Pyo Lee
Thermal/Fluid Engineering Laboratory, Korea Institute of Science and Technology, Seoul 130-650, KOREA

Young-Soo Lee
Waste Heat Utilization Research Team, Korea Institute of Energy Research, Taejon 305-343, KOREA

Y. P. Lee
Department of Mechanical Engineering, University of Ottawa, Ottawa, Ontario, Canada, KIN 6N5

Abstract

The rise of a large gas bubble or slug in a micro two-phase closed thermosyphon with a thin wire insert has been analyzed by the potential flow theory. The effect of the interfacial surface tension is explicitly accounted by application of the Kelvin-Laplace equation and solved for the bubble shape. The solution is expressed in terms of the Stokes stream function which consists of infinite series of Bessel functions.
The conditions of the bubble movement in a micro two-phase closed thermosyphon were theoretically ascertained.