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RESEARCH PAPERS

The Stefan Problem of a Polymorphous Material

[+] Author and Article Information
L. N. Tao

Department of Mechanics and Mechanical and Aerospace Engineering, Illinois Institute of Technology, Chicago, Ill. 60616

J. Appl. Mech 46(4), 789-794 (Dec 01, 1979) (6 pages) doi:10.1115/1.3424655 History: Received March 01, 1979; Online July 12, 2010

Abstract

The problem of freezing or melting of a polymorphous material in a semi-infinite region with arbitrarily prescribed initial and boundary conditions is studied. Exact solutions of the problem are established. The solutions of temperature of all phases are expressed in polynomials and functions in the error integral family and time t and the position of the interfacial boundaries in power series of t1/2 . Existence and uniqueness of the series solutions are considered and proved. It is also shown that these series are absolutely and uniformly convergent. The paper concludes with some remarks on density changes at the interfacial boundary and various special cases, one of which is the similarity solution.

Copyright © 1979 by ASME
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