Fast implicit finite-difference method for the analysis of phase change problems
VR Voller - Numerical Heat Transfer, 1990 - Taylor & Francis
Numerical Heat Transfer, 1990•Taylor & Francis
This paper develops a rapid implicit solution technique for the enthalpy formulation of
conduction controlled phase change problems. Initially, three existing implicit enthalpy
schemes are introduced. A new enthalpy solution scheme, requiring no under-or over-
relaxation, is then developed. The previous three schemes and the new scheme are tested
on a range of problems in one and two dimensions. A comparison of CPU times shows that
the new scheme is between 1.5 and 10 times faster than the previous schemes.
conduction controlled phase change problems. Initially, three existing implicit enthalpy
schemes are introduced. A new enthalpy solution scheme, requiring no under-or over-
relaxation, is then developed. The previous three schemes and the new scheme are tested
on a range of problems in one and two dimensions. A comparison of CPU times shows that
the new scheme is between 1.5 and 10 times faster than the previous schemes.
This paper develops a rapid implicit solution technique for the enthalpy formulation of conduction controlled phase change problems. Initially, three existing implicit enthalpy schemes are introduced. A new enthalpy solution scheme, requiring no under- or over-relaxation, is then developed. The previous three schemes and the new scheme are tested on a range of problems in one and two dimensions. A comparison of CPU times shows that the new scheme is between 1.5 and 10 times faster than the previous schemes.
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