Phase Change Problems With Temperature-Dependent Thermal Conductivity

[+] Author and Article Information
S. H. Cho

Department of Mechanical Engineering, Korea Military Academy, Seoul, Korea

J. E. Sunderland

Department of Mechanical and Aerospace Engineering, University of Massachusetts, Amherst, Mass.

J. Heat Transfer 96(2), 214-217 (May 01, 1974) (4 pages) doi:10.1115/1.3450167 History: Received February 06, 1973; Online August 11, 2010


An exact solution is presented for the temperature distribution and phase change position of a semi-infinite body which is initially at a constant temperature different from the fusion temperature. The temperature of the free surface is instantaneously changed and held constant at a value that will cause either melting or solidification of the body. The thermal conductivity is assumed to vary linearly with temperature. The convection in the liquid phase due to density change is also considered.

Copyright © 1974 by ASME
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