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Tripathy, R. K.
- Magneto Hydrodynamic Convective Flow and Heat Transfer Past a Vertical Porous Flat Plate in a Porous Medium with Constant Suction and Periodic Variation of Plate Temperature
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Authors
Affiliations
1 Department of Physics, KBDAV College, Nirakarpur, Khordha-752 019 (Odisha), IN
2 Department of Physics, ABIT, CDA Sector-I, Bidanasi, Cuttack-753 014 (Odisha), IN
3 Department of Physics, DR Nayapalli College, Bhubaneswar-751 012 (Odisha), IN
4 Department of Physics, PN College, Bolgarh, Nayagarh-752 066 (Odisha), IN
5 Department of Physics, DAV Public School, Chandrasekharpur, Bhubaneswar-751 021 (Odisha), IN
1 Department of Physics, KBDAV College, Nirakarpur, Khordha-752 019 (Odisha), IN
2 Department of Physics, ABIT, CDA Sector-I, Bidanasi, Cuttack-753 014 (Odisha), IN
3 Department of Physics, DR Nayapalli College, Bhubaneswar-751 012 (Odisha), IN
4 Department of Physics, PN College, Bolgarh, Nayagarh-752 066 (Odisha), IN
5 Department of Physics, DAV Public School, Chandrasekharpur, Bhubaneswar-751 021 (Odisha), IN
Source
Indian Journal of Innovations and Developments, Vol 1, No 6 (2012), Pagination: 450-460Abstract
The objective of this paper is to analyse the unsteady magneto hydrodynamic flow of a viscous incompressible fluid past an infinite hot vertical porous plate in presence of constant suction and periodic variation of plate temperature. The governing equations of the flow field are solved employing multi-parameter perturbation technique assuming Eckert number as perturbation parameter. The effects of magnetic parameter M, Grashof number for heat transfer Gr, Eckert number Ec, Prandtl number Pr, frequency parameter ω, etc. on velocity, temperature, skin friction and heat flux are discussed with the help of figures and tables. It is observed that a growing magnetic parameter enhances the velocity of the flow field near the plate and there after the effect reverses due to the magnetic pull of the Lorentz force on the flow field. The Grashof number/permeability parameter / Eckert number has an accelerating effect on the velocity of the flow field. A growing Prandtl number / Reynolds number has a retarding effect on the temperature of the flow field at all points. The permeability parameter enhances the skin friction and decreases the magnitude of heat flux at the wall. On the other hand, the magnetic parameter enhances the skin friction as well as the magnitude of heat flux at the wall.Keywords
Convective flow, MHD, Porous medium, Unsteady, Variable temperature, Vertical plateFull Text
References
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