In this paper, variational iteration method is used to solve a moving
boundary problem arising during melting or freezing of a semi infinite egion
when physical properties (thermal conductivity and specific heat) of the two
regions are temperature dependent. The Result is compared with result
obtained by exact method (when thermal conductivity and specific heat in two
regions are temperature independent) and semi analytical method (When thermal
conductivity and specific heat are temperature dependent) and are in good
agreement. We obtain the solution in the form of continuous functions. The
method performs extremely well in terms of efficiency and simplicity and
effective for solving the moving boundary problem.
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