scholarly journals UNSTEADY MHD CONVECTION FLOW AND HEAT TRANSFER PAST A VERTICAL INCLINED PLATE IN A POROUS MEDIUM WITH VARIABLE PLATE TEMPERATURE WITH SUCTION IN A SLIP FLOW REGIME

2019 ◽  
Vol 32 (2) ◽  
Author(s):  
G. Buzuzi ◽  
A.N. Buzuzi
Keyword(s):  
Heat Transfer ◽  
Porous Medium ◽  
Flow Regime ◽  
Slip Flow ◽  
Convection Flow ◽  
Inclined Plate ◽  
Plate Temperature ◽  
Flow And Heat Transfer ◽  
Slip Flow Regime

scholarly journals Magneto-polar fluid flow through a porous medium of variable permeability in slip flow regime

2016 ◽  
Vol 21 (2) ◽  
pp. 323-339
Author(s):  
P.K. Gaur ◽  
A.K. Jha ◽  
R. Sharma
Keyword(s):  
Heat Transfer ◽  
Porous Medium ◽  
Flow Regime ◽  
Slip Flow ◽  
Skin Friction Coefficient ◽  
Stream Velocity ◽  
Polar Fluid ◽  
Variable Permeability ◽  
Fluid Properties ◽  
Slip Flow Regime

Abstract A theoretical study is carried out to obtain an analytical solution of free convective heat transfer for the flow of a polar fluid through a porous medium with variable permeability bounded by a semi-infinite vertical plate in a slip flow regime. A uniform magnetic field acts perpendicular to the porous surface. The free stream velocity follows an exponentially decreasing small perturbation law. Using the approximate method the expressions for the velocity, microrotation, and temperature are obtained. Further, the results of the skin friction coefficient, the couple stress coefficient and the rate of heat transfer at the wall are presented with various values of fluid properties and flow conditions.

scholarly journals About Unsteady Magnetopolar free Convection flow cdots in a Slip flow Regime

2020 ◽  
Author(s):  
Uthman ibn Afaq
Keyword(s):  
Heat Transfer ◽  
Free Convection ◽  
Skin Friction ◽  
Flow Regime ◽  
Slip Flow ◽  
Expansion Method ◽  
Physical Aspect ◽  
Convection Flow ◽  
Free Convection Flow ◽  
Slip Flow Regime

It is written that The objective of this paper is to study the effects of different parameters on an unsteady magnetopolar free convection flow of an incompressible fluid in the presence of thermal radiation and uniform magnetic field of strength B0 through a porous medium in slip flow regime. The suction velocity is considered to be variable and the fluid is assumed to be gray; emitting absorbing but non scattering medium. The governing boundary layer equations with the boundary conditions are first converted into dimensionless form by non-similar transformations, and then resulting system of coupled non-linear partial differential equations are solved by series expansion method. The expressions for velocity (u), angular velocity (ω), temperature (θ), concentration (C), skin friction (Cf) and rate of heat transfer (Nu) are obtained. The results obtained have been presented, separately in two basic fluids air (Pr=0.71, Sc=0.22) and water (Pr=7, Sc=0.61), numerically through graphs to observe the effects of different parameters and the physical aspect of the problem. We observe that on decreasing Gr (thermal Grashof number), skin friction drops in air but rises in water. Also we notice that the rate of heat transfer rises on decreasing h2 (jump parameter).

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