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PRESSURE STRATIFICATION EFFECTS ON MULTIPHASE TRANSPORT ACROSS A VERTICAL SLOT POROUS INSULATION.

Author(s) : TIEN H. C., VAFAI K.

Type of article: Article

Summary

THERMAL STRATIFICATION EFFECTS ON HEAT AND MASS TRANSFER IN A POROUS INSULATION ARE ANALYZED. THE VERTICAL BOUNDARIES OF THE POROUS SYSTEM ARE PARTIALLY PERMEABLE FOR SIMULATING HOLES OR CRACKS IN WALL. HYDROSTATIC PRESSURE VARIATIONS ARE CONSIDERED ON THE VERTICAL BOUNDARIES AND A SET OF REALISTIC BOUNDARY CONDITIONS IS IMPOSED ON THE SYSTEM UNDER CONSIDERATION. THE TRANSIENT INTERCOUPLED EQUATIONS GOVERNING THE COMPLICATED TRANSPORT PROCESS ALONG WITH THE CONVECTIVE BOUNDARY CONDITIONS ARE SOLVED BY AN EFFICIENT NUMERICAL SCHEME. THE RESULTS CLEARLY SHOW THAT INFILTRATION CAN HAVE A MAJOR EFFECT ON THE OVERALL HEAT TRANSFER EVEN FOR SMALL PRESSURE GRADIENTS ACROSS THE INSULATION SLAB.

Details

  • Original title: PRESSURE STRATIFICATION EFFECTS ON MULTIPHASE TRANSPORT ACROSS A VERTICAL SLOT POROUS INSULATION.
  • Record ID : 1991-2042
  • Languages: English
  • Source: J. Heat Transf. - vol. 112 - n. 4
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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