Transient Multidimensional Analysis of Nonconventional Heat Pipes With Uniform and Nonuniform Heat Distributions

[+] Author and Article Information
Y. Cao, A. Faghri

Wright State University, Department of Mechanical and Materials Engineering, Dayton, OH 45435

J. Heat Transfer 113(4), 995-1002 (Nov 01, 1991) (8 pages) doi:10.1115/1.2911233 History: Received September 27, 1990; Revised April 11, 1991; Online May 23, 2008


A numerical analysis of transient heat pipe performance including nonconventional heat pipes with nonuniform heat distributions is presented. A body-fitted grid system was applied to a three-dimensional wall and wick model, which was coupled with a transient compressible quasi-one-dimensional vapor flow model. The numerical results were first compared with experimental data from cylindrical heat pipes with good agreement. Numerical calculations were then made for a leading edge heat pipe with localized high heat fluxes. Performance characteristics different from conventional heat pipes are illustrated and some operating limits concerning heat pipe design are discussed.

Copyright © 1991 by The American Society of Mechanical Engineers
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