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NATURAL CONVECTION IN A RECTANGULAR POROUS CAVITY WITH CONSTANT HEAT FLUX ON ONE VERTICAL WALL.

Author(s) : PRASAD V., KULACKI F. A.

Type of article: Article

Summary

NUMERICAL SOLUTIONS OF TWO-DIMENSIONAL, STEADY, FREE CONVECTION ARE PRESENTED FOR A RECTANGULAR CAVITY WITH CONSTANT HEAT FLUX ON ONE VERTICAL WALL, THE OTHER VERTICAL WALL BEING ISOTHERMALLY COOLED. THE HORIZONTAL WALLS ARE INSULATED. FLOW PATTERNS ARE OBSERVED TO BE QUITE DIFFERENT FROM THOSE IN THE CASE OF A CAVITY WITH BOTH VERTICAL WALLS AT CONSTANT TEMPERATURES. SYMMETRY IN THE FLOW FIELD IS ABSENT AND ANY INCREASE IN APPLIED HEAT FLUX IS NOT ACCOMPANIED BY LINEARLY PROPORTIONAL INCREASE IN THE TEMPERATURE ON THE HEATED WALL. THE AVERAGE NUSSELT NUMBER IS CORRELATED BY A RELATION OF THE FORM: CONSTANT RPOWER M X A POWER N, WHERE RIS THE RAYLEIGH NUMBER AND A THE HEIGHT-TO-WIDTH RATIO OF THE CAVITY.

Details

  • Original title: NATURAL CONVECTION IN A RECTANGULAR POROUS CAVITY WITH CONSTANT HEAT FLUX ON ONE VERTICAL WALL.
  • Record ID : 1985-0080
  • Languages: English
  • Source: J. Heat Transf. - vol. 106 - n. 1
  • Publication date: 1984/02
  • Document available for consultation in the library of the IIR headquarters only.

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