Analysis of laminar forced convection condensation within thin porous coatings
- Univ. of Wisconsin, Milwaukee, WI (United States)
The effect of laminar forced convection on enhanced filmwise condensation within thin inclined porous coatings is numerically investigated. The model simulates two-dimensional condensation within very permeable and highly conductive porous substrates. The Darcy-Brinkman-Forchheimer model is utilized to describe the flowfield within the porous layer while classical boundary-layer equations are employed in the pure condensate region. The numerical results document the dependence of the temperature field and the heat transfer rate on the governing parameters such as the Reynolds number, the Rayleigh number, the Darcy number, the Jakob number, the Prandtl number, as well as the porous coating thickness and effective thermal conductivity. The results of this study provide valuable fundamental predictions of enhanced film condensation that can be used in a number of practical thermal engineering applications. 28 refs.
- OSTI ID:
- 6980127
- Journal Information:
- Journal of Thermophysics and Heat Transfer; (United States), Journal Name: Journal of Thermophysics and Heat Transfer; (United States) Vol. 8:2; ISSN 0887-8722; ISSN JTHTEO
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
420400* -- Engineering-- Heat Transfer & Fluid Flow
COATINGS
CONVECTION
ENERGY TRANSFER
FILM CONDENSATION
FILMS
FLUID FLOW
FORCED CONVECTION
HEAT TRANSFER
LAMINAR FLOW
MASS TRANSFER
MATERIALS
MATHEMATICAL MODELS
PHYSICAL PROPERTIES
POROUS MATERIALS
TEMPERATURE DISTRIBUTION
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
THIN FILMS
VAPOR CONDENSATION