THERMAL SCIENCE
International Scientific Journal
NUMERICAL SOLUTION OF STEFAN PROBLEM WITH TIME-DEPENDENT BOUNDARY CONDITIONS BY VARIABLE SPACE GRID METHOD
ABSTRACT
The variable space grid method based on finite differences is applied to the one-dimensional Stefan problem with time-dependent boundary conditions describing the solidification/melting process. The temperature distribution, the position of the moving boundary and its velocity are evaluated in terms of finite differences. It is found that the computational results obtained by the variable space grid method exhibit good agreement with the exact solution. Also the present results for temperature distribution are found to be more accurate compared to those obtained previously by the variable time step method.
KEYWORDS
PAPER SUBMITTED: 2008-10-20
PAPER REVISED: 2008-10-25
PAPER ACCEPTED: 2008-10-28
THERMAL SCIENCE YEAR
2009, VOLUME
13, ISSUE
Issue 4, PAGES [165 - 174]
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