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A FIXED GRID NUMERICAL MODELLING METHODOLOGY FOR CONVECTION-DIFFUSION MUSHY REGION PHASE-CHANGE PROBLEMS.

Author(s) : VOLLER V. R., PRAKASH C.

Type of article: Article

Summary

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 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.

Details

  • Original title: A FIXED GRID NUMERICAL MODELLING METHODOLOGY FOR CONVECTION-DIFFUSION MUSHY REGION PHASE-CHANGE PROBLEMS.
  • Record ID : 1988-0932
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 30 - n. 8
  • Publication date: 1987

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