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THE EFFECT OF INTERNAL HEAT TRANSFER IN CAVITIES ON THE OVERALL THERMAL CONDUCTIVITY.

Author(s) : TZOU D. Y.

Type of article: Article

Summary

BASED ON AN ANALYTICAL MODEL, DEGRADATION OF THE OVERALL THERMAL CONDUCTIVITY IS STUDIED TO ACCOUNT FOR THE INTERNAL MECHANISM OF HEAT TRANSFER BETWEEN THE SOLID MEDIUM AND THE FLUID INSIDE CAVITIES. THE CAVITY IS ASSUMED TO RANDOMLY DISTRIBUTE IN THE SOLID. THE MODEL IS CAPABLE OF CHARACTERIZING THE EFFECT OF INTERNAL HEAT TRANSFER. IN THE CASE INVOLVING THE CONVECTION MODE, THE BIOT NUMBER HAS BEEN IDENTIFIED TO BE THE MODULUS DOMINATING THE OVERALL THERMAL CONDUCTIVITY, WHILE IN THE CASE INVOLVING THE CONDUCTION MODE, THE RATIO OF THE THERMAL CONDUCTIVITY OF THE SOLID MEDIUM TO THAT OF THE FLUID INSIDE CAVITIES IS THE MAJOR INFLUENCING FACTOR.

Details

  • Original title: THE EFFECT OF INTERNAL HEAT TRANSFER IN CAVITIES ON THE OVERALL THERMAL CONDUCTIVITY.
  • Record ID : 1992-1052
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 34 - n. 7
  • Publication date: 1991/07

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