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FINITE DIFFERENCE SIMULATION FOR HEAT CONDUCTION WITH PHASE CHANGE IN AN IRREGULAR FOOD DOMAIN WITH VOLUMETRIC CHANGE.

Author(s) : SHEEN S., HAYAKAWA K. I.

Type of article: Article

Summary

A MATHEMATICAL MODEL INCLUDING THE VOLUMETRIC CHANGES FOR FOOD FREEZING OR THAWING IS OBTAINED BY MODIFYING THE GENERAL HEAT CONDUCTION PARABOLIC PARTIAL DIFFERENTIAL EQUATION. THE SHAPE OF FOOD IS ASSUMED TO BE A BODY OF ROTATION WITH AN IRREGULAR CROSS-SECTIONAL CONTOUR. COORDINATES ARE FIXED TO THE INITIAL FOOD VOLUME THROUGH A PROPER COORDINATE TRANSFORMATION. DUE TO THE HIGHLY TEMPERATURE-DEPENDENT FOOD PROPERTIES DURING PHASE CHANGE, THE NODAL TEMPERATURES ARE SOLVED NUMERICALLY WHILE A HEAT BALANCE METHOD IS APPLIED TO BOUNDARY NODES WITH ANY KIND OF BOUNDARY CONDITIONS.

Details

  • Original title: FINITE DIFFERENCE SIMULATION FOR HEAT CONDUCTION WITH PHASE CHANGE IN AN IRREGULAR FOOD DOMAIN WITH VOLUMETRIC CHANGE.
  • Record ID : 1992-1148
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 34 - n. 6
  • Publication date: 1991/06

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