Analysis of Film Boiling on Vertical Surfaces

[+] Author and Article Information
J. C. Y. Koh

Aero Space Division, Boeing Airplane Company, Seattle, Wash.

J. Heat Transfer 84(1), 55-62 (Feb 01, 1962) (8 pages) doi:10.1115/1.3684293 History: Received March 14, 1961


The two phase flow problem in laminar film boiling on a vertical flat plate is analyzed. The shear stress and vapor velocity at the vapor-liquid interface are taken into account. The problem is treated by solving simultaneously the boundary-layer equations for the vapor and liquid phases. In contrast to the film-condensation problem where the heat transfer is independent of the ρμ ratio, and where the interfacial shear can be neglected for a Prandtl number of unity or larger, it is shown that the ρμ ratio is an important parameter in the film-boiling heat transfer, and that the interfacial shear is quite different from zero.

Copyright © 1962 by ASME
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