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On natural convection in vertical porous enclosures due to prescribed fluxes of heat and mass at the vertical boundaries.

Author(s) : ALAVYOON F.

Type of article: Article

Summary

Unsteady and steady convection in a fluid-saturated, vertical and homogeneous porous enclosure was studied numerically on the basis of a two-dimensional mathematical model. The buoyancy forces that induce the fluid motion are due to cooperative and constant fluxes of heat and mass on the vertical walls. For the steady state, an analytical solution, valid for stratified flow in slender enclosures, is presented. Scale analysis is applied to the two extreme cases of heat-driven and solute-driven natural convection. Comparisons between the fully numerical and analytical solutions are presented.

Details

  • Original title: On natural convection in vertical porous enclosures due to prescribed fluxes of heat and mass at the vertical boundaries.
  • Record ID : 1994-0156
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 36 - n. 10
  • Publication date: 1993/07

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