TECHNICAL PAPERS: Evaporation, Boiling, and Condensation

An Investigation of the Breakup of an Evaporating Liquid Film, Falling Down a Vertical, Uniformly Heated Wall

[+] Author and Article Information
Mohamed S. El-Genk, Hamed H. Saber

Institute for Space and Nuclear Power Studies and Chemical and Nuclear Eng. Dept., The University of New Mexico, Albuquerque, NM 87131

J. Heat Transfer 124(1), 39-50 (Aug 03, 2001) (12 pages) doi:10.1115/1.1420712 History: Received January 03, 2001; Revised August 03, 2001
Copyright © 2002 by ASME
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Grahic Jump Location
Breakup of an evaporating liquid film, falling down a vertical, uniformly heated wall: (a) observed breakup of a falling, evaporating liquid film 3; and (b) cross-section area of the stable, evaporating liquid rivulet at A-A.
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Effect of the evaporation parameter, ξ on the profile of the liquid rivulet for θo=45 deg and 60 deg
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Comparisons of calculated velocity contours within stable evaporating liquid rivulet for θo=45 deg
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Developed expressions for MLFT and MWR for different liquids, when the wall is uniformly heated at its inner surface
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Comparison of calculated values of the MLFT and MWR with developed expressions for a uniformly heated wall at its inner surface
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Effect of the wall thermal conductance and thickness on the MLFT for different liquids
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Comparison of the present predictions of MLFT and MWR with experimental data of Hsu et al. 11
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Comparison of the present predictions of MLFT and MWR with experimental data of Fujita and Ueda 13
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Effect of the equilibrium contact angle, θo and the evaporation parameter, ξ on the effective contact angle, θeff of the liquid rivulet
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Comparison of the values of the liquid film thickness at breakup for water and pentane at Tv=333 K and θo=45 deg versus the wall heat flux



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