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Mathematics 2014, 2(1), 1-11; doi:10.3390/math2010001

One-Dimensional Nonlinear Stefan Problems in Storm’s Materials

1,2,*  and 2
1 National Scientific and Technical Research Council, Rivadavia 1917, Buenos Aires C1033AAJ, Argentina 2 Departmant of Mathematics, Faculty of Business, University of Austral, Paraguay 1950, Rosario S2000FZF, Argentina
* Author to whom correspondence should be addressed.
Received: 17 October 2013 / Revised: 12 December 2013 / Accepted: 20 December 2013 / Published: 27 December 2013
(This article belongs to the Special Issue Mathematics on Partial Differential Equations)
View Full-Text   |   Download PDF [224 KB, 30 December 2013; original version 27 December 2013]


We consider two one-phase nonlinear one-dimensional Stefan problems for a semi-infinite material x > 0; with phase change temperature Tf : We assume that the heat capacity and the thermal conductivity satisfy a Storm’s condition. In the first case, we assume a heat flux boundary condition of the type q(t) = q 0 t , and in the second case, we assume a temperature boundary condition T = Ts < Tf at the fixed face. Solutions of similarity type are obtained in both cases, and the equivalence of the two problems is demonstrated. We also give procedures in order to compute the explicit solution.
Keywords: Stefan problem; free boundary problem; phase-change process; similarity solution Stefan problem; free boundary problem; phase-change process; similarity solution
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Briozzo, A.C.; Natale, M.F. One-Dimensional Nonlinear Stefan Problems in Storm’s Materials. Mathematics 2014, 2, 1-11.

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