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RESEARCH PAPERS: Boiling and Condensation

Thickness of the Liquid Film Formed by a Growing Bubble in a Narrow Gap Between Two Horizontal Plates

[+] Author and Article Information
K. Moriyama, A. Inoue

Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, 2-12-1 0-okayama, Meguro-ku, Tokyo 152, Japan

J. Heat Transfer 118(1), 132-139 (Feb 01, 1996) (8 pages) doi:10.1115/1.2824026 History: Received December 01, 1994; Revised July 01, 1995; Online December 05, 2007

Abstract

An experiment was performed to measure the thickness of the liquid film formed by a growing flattened bubble in a narrow gap whose width ranged from 0.1 to 0.4 mm. High-speed photographs were also taken to measure the bubble growth velocity in order to validate an investigation into the mechanism of the liquid film formation. From the experimental results, it was clarified that the liquid film thickness was controlled by the viscous boundary layer thickness or the capillary number according to whether the Bond number was greater or smaller than 2.

Copyright © 1996 by The American Society of Mechanical Engineers
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