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A THERMODYNAMICAL MODELLING OF FLUID FLOWS THROUGH POROUS MEDIA: APPLICATION TO NATURAL CONVECTION.

Author(s) : LEBON G., CLOOT A.

Type of article: Article

Summary

EXTENDED IRREVERSIBLE THERMODYNAMICS IS EMPLOYED TO MODEL POROUS MEDIA. THE BASIC IDEAS ARE TO RAISE THE HEAT FLUX AND THE DIFFUSION FLUX TO THE STATUS OF INDEPENDENT VARIABLES AND TO VIEW THE POROUS MEDIUM AS A BINARY MIXTURE FORMED BY A PERFECTLY RIGID SOLID AND A FLUID.ANTRR BRINKMAN'S LAW RECEIVES A SOUND THERMODYNAMIC JUSTIFICATION AND THE RANGE OF APPLICABILITY OF DARCY'S LAW ISISE. THE MODEL IS APPLIED TO STUDY NATURAL CONVECTION IN A THIN POROUS LAYER HEATED FROM BELOW (BENARD'S INSTABILITY).

Details

  • Original title: A THERMODYNAMICAL MODELLING OF FLUID FLOWS THROUGH POROUS MEDIA: APPLICATION TO NATURAL CONVECTION.
  • Record ID : 1986-2215
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 29 - n. 3
  • Publication date: 1986

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