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PREDICTION OF RATES OF FREEZING, THAWING OR COOLING IN SOLIDS OF ARBITRARY SHAPE USING THE FINITE ELEMENT METHOD.

Author(s) : CLELAND D. J.

Type of article: Article, IJR article

Summary

THE FINITE ELEMENT METHOD WAS FORMULATED FOR THE SOLUTION OF THREE DIMENSIONAL HEAT TRANSFER PROBLEMS IN SOLIDS OF ARBITRARY GEOMETRY WITH VARIABLE THERMAL PROPERTIES. THE ACCURACY OF THE METHOD WAS TESTED AGAINST AVAILABLE ANALYTICAL SOLUTIONS AND AGAINST EXPERIMENTAL DATA FOR FREEZING OF REGULAR SHAPES. THE METHOD GAVE COMPARABLE PREDICTIONS TO FINITE DIFFERENCE METHODS FOR SIMILAR PROBLEMS AND PRECISION WAS THEREFORE MORE LIMITED BY THE DATA UNCERTAINTIES THAN BY THE NUMERICAL APPROXIMATIONS INHERENT IN THE METHOD. A SIMPLIFIED FORMULATION INVESTIGATED GAVE ONLY SLIGHTLY REDUCED ACCURACY YET MUCH SHORTER COMPUTATION TIMES.

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Pages: 6-13

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Details

  • Original title: PREDICTION OF RATES OF FREEZING, THAWING OR COOLING IN SOLIDS OF ARBITRARY SHAPE USING THE FINITE ELEMENT METHOD.
  • Record ID : 1984-2283
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 7 - n. 1
  • Publication date: 1984

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