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A NUMERICAL ANALYSIS OF STEFAN PROBLEMS FOR GENERALIZED MULTIDIMENSIONAL PHASE-CHANGE STRUCTURES USING THE ENTHALPY TRANSFORMING MODEL.

Author(s) : CAO Y., FAGHRI A., CHANG W. S.

Type of article: Article

Summary

AN ENTHALPY TRANSFORMING SCHEME IS PROPOSED TO CONVERT THE ENERGY INTO A NON-LINEAR EQUATION WITH THE ENTHALPY BEING THE SINGLE DEPENDENT VARIABLE. THE EXISTING CONTROL-VOLUME FINITE-DIFFERENCE APPROACH IS MODIFIED SO IT CAN BE APPLIED TO THE NUMERICAL PERFORMANCE OF STEFAN PROBLEMS. THE MODEL IS TESTED BY APPLYING IT TO A THREE-DIMENSIONAL FREEZING PROBLEM. THE NUMERICAL RESULTS ARE IN AGREEMENT WITH THOSE EXISTING IN THE LITERATURE. THE MODEL AND ITS ALGORITHM ARE FURTHER APPLIED TO A THREE-DIMENSIONAL MOVING HEAT SOURCE PROBLEM SHOWING THAT THE METHODOLOGY IS CAPABLE OF HANDLING COMPLICATED PHASE-CHANGE PROBLEMS WITH FIXED GRIDS.

Details

  • Original title: A NUMERICAL ANALYSIS OF STEFAN PROBLEMS FOR GENERALIZED MULTIDIMENSIONAL PHASE-CHANGE STRUCTURES USING THE ENTHALPY TRANSFORMING MODEL.
  • Record ID : 1990-0063
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 32 - n. 7
  • Publication date: 1989

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