A fixed grid numerical modelling methodology for convection-diffusion mushy region phase-change problems

V. R. Voller, C. Prakash

Research output: Contribution to journalArticlepeer-review

1342 Scopus citations

Abstract

An enthalpy formulation based fixed grid methodology is developed for the numerical solution of convection-diffusion controlled mushy region phase-change problems. The basic feature of the proposed method lies in the representation of the latent heat of evolution, and of the flow in the solid-liquid mushy zone, by suitably chosen sources. There is complete freedom within the methodology for the definition of such sources so that a variety of phase-change situations can be modelled. A test problem of freezing in a thermal cavity under natural convection is used to demonstrate an application of the method.

Original languageEnglish (US)
Pages (from-to)1709-1719
Number of pages11
JournalInternational Journal of Heat and Mass Transfer
Volume30
Issue number8
DOIs
StatePublished - Aug 1987

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