Heat transfer in unsteady MHD oscillatory flow |
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Authors: | S P Anjali Devi S Jothimani |
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Institution: | (1) Department of Mathematics, Bharathiar University, Coimbatore, 641 046 Tamil Nadu, India |
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Abstract: | Heat transfer in unsteady MHD channel flow (of an incompressible viscous and electrically conducting fluid) under oscillatory pressure gradient when the channel surfaces are conducting and moving with time-dependent velocities has been analysed. The velocity, magnetic field and temperature distributions have been obtained and their numerical results are shown graphically.Symbols
u
velocity
-
H
o
applied magnetic field
-
H
x
induced magnetic field
-
T
temperature
-
T
1
*
,T
2
*
temperatures of the upper and lower planes
-
density
-
p
pressure
-
kinematic viscosity
-
magnetic diffusivity
-
electrical conductivity of the fluid
-
A
*
characteristic velocity
-
L
characteristic length
-
e
magnetic permeability of the fluid
-
C
p
specific heat
-
coefficient of viscosity
-
k
thermal conductivity
-
1,
2
permeabilities of the planes
-
1,
2
conductivities of the planes
-
1,
2
conductance ratios of the planes
-
Pr
Prandtl number (=![ngr](/content/n1xq304173q67810/xxlarge957.gif) C
p
/k)
-
E
Eckert number
-
M
Hartmann number (=
e
H
o
L![radic](/content/n1xq304173q67810/xxlarge8730.gif) / )
-
R
e
Reynolds number (=LA
*/ )
-
R
m
magnetic Reynolds number (=
e
LA
*)
-
S
Pr.E(=S) |
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Keywords: | |
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