Steady State Analysis of Natural Convective Flow over a Moving Vertical Cylinder in the Presence of Porous Medium

A numerical study is carried out for a free convection flow past a continuously moving semi-infinite vertical cylinder in the presence of porous medium. The governing boundary layer equations are converted into a non-dimensional form and then they are solved by an ecient, accurate and unconditionall...

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Bibliographic Details
Published in:Journal of Applied Fluid Mechanics 2016-01, Vol.9 (4), p.1591-1601
Main Authors: Parasuram, Loganathan, Eswari, Balakrishnan
Format: Article
Language:English
Subjects:
Boundary layer equations
Boundary layers
Computational fluid dynamics
Convection
Convective flow
Cylinders
Finite difference method
Fluid flow
Free convection
Grashof number
Mathematical analysis
Mathematical models
Nusselt number
Parameters
Permeability
Porous media
Prandtl number
Schmidt number
Shear stress
Skin friction
Temperature
Thermal energy
Velocity
Velocity distribution
Vertical cylinder
Natural convection
Heat and mass transfer
Porous medium
Finite difference
Vertical cylinders
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Summary:A numerical study is carried out for a free convection flow past a continuously moving semi-infinite vertical cylinder in the presence of porous medium. The governing boundary layer equations are converted into a non-dimensional form and then they are solved by an ecient, accurate and unconditionally stable implicit finite difference scheme of Crank-Nicolson method. Stability and convergence of the finite difference scheme are established. The velocity, temperature and concentration profiles have been presented for various parameters such as Prandtl number, Schmidt number, thermal Grashof number, mass Grashof number and permeability of the porous medium. The local as well as average skin-friction, Nusselt number and Sherwood number are also shown graphically. It is observed that the increase in the permeability parameter leads to increase in velocity profile, local as well as average shear stress, Nusselt number and Sherwood number but leads to decrease in temperature and concentration profiles. The results of temperature and concentration profiles are compared with available result in literature and are found to be in good agreement.
ISSN:1735-3572
1735-3645
DOI:10.18869/acadpub.jafm.68.235.25114