Natural convection heat and mass transfer in a micropolar fluidsaturated non-Darcy porous regime with radiation and thermophoresis effects

An analysis is presented for the steady thermal convection heat and mass transfer in a micropolar-fluid-saturated non-Darcian porous medium in the presence of radiation and thermophoresis effects. The governing boundary layer equations for momentum, energy, species transfer and angular momentum (mic...

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Bibliographic Details
Published in:Thermal science 2011, Vol.15 (suppl. 2), p.317-326
Main Author: Bakier, A.Y.
Format: Article
Language:English
Subjects:
Angular momentum
Angular velocity
Boundary layer equations
Chemical engineering
Coordinates
Darcy number
Free convection
Geothermal energy
Grashof number
Heat transfer
Mass transfer
Porous media
Prandtl number
Rotation
Schmidt number
Thermophoresis
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Summary:An analysis is presented for the steady thermal convection heat and mass transfer in a micropolar-fluid-saturated non-Darcian porous medium in the presence of radiation and thermophoresis effects. The governing boundary layer equations for momentum, energy, species transfer and angular momentum (micro-rotation) are transformed from an (x,y), coordinate system into (?), coordinate system. The influence of Darcy number (Da), Forchheimmer number (Fs), local Grashof number (Gr), Prandtl number (Pr), Schmidt number (Sc), radiation (R) and thermophoresis (k), surface parameter (s), on the velocity, temperature, concentration profiles and angular velocity (micro-rotation) are studied graphically. Applications for the problem arise in chemical engineering systems and geothermal energy systems. nema
ISSN:0354-9836
2334-7163
DOI:10.2298/TSCI101026096B