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1
Content available Heat transfer in oscillating flow through porous medium with dissipative heat
Guria M.
International Journal of Applied Mechanics and Engineering
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2022
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Vol. 27, no. 2
77--86
EN
In this paper, heat transfer in flow between two horizontal parallel porous plates through a porous medium when the upper plate oscillates in its own plane has been analyzed taking into account the effect of viscous dissipation. An increment in the Prandtl number or Reynolds number results in an increment of the temperature profile. With an increase in viscous dissipative heat the temperature distribution decreases.
2
Content available Heat and mass transfer in a vertical channel flow through a porous medium in the presence of radiation
Guria M.
International Journal of Applied Mechanics and Engineering
|
2022
|
Vol. 27, no. 3
63--78
EN
An analysis is made of heat and mass transfer in a three dimensional flow between two vertical porous plates through a porous medium. Analytical solutions have been obtained using the perturbation technique. The effect of non-dimensional parameters on velocity, temperature and concentration field are shown graphically. It is seen that the main flow velocity decreases with an increase in both the radiation parameter and Schmidt number but increases with an increase in the thermal Grashoff number, mass Grashoff number as well as the permeability parameter. Variations of the shear stress at the left plate are given in a tabular form. It is seen that the shear stress due to the primary flow at the left plate increases with an increase in the Reynolds number but decrease with an increase in the Schmidt number. With the increase of both the radiation parameter and Reynolds number the temperature decreases. The concentration field also decreases with an increase of the Schmidt number. Variations of mass flux at the left plate are given in tabular form. It is seen that the mass flux at the left plate increases with increase in both Schmidt number or Reynolds number.
3
Content available Unsteady MHD flow due to non-coaxial rotations of a porous disk and a fluid at infinity subjected to a periodic suction
Guria M.
International Journal of Applied Mechanics and Engineering
|
2018
|
Vol. 23, no. 3
623--633
EN
The unsteady flow of a viscous incompressible electrically conducting fluid due to non-coaxial rotations of a porous disk subjected to a periodic suction and the fluid at infinity in the presence of applied transverse magnetic field has been studied. The fluid at infinity passes through a fixed point. The velocity field, shear stresses are obtained in a closed form.
4
Content available Unsteady flow through a porous medium due to noncoaxial rotations of a porous disk and a fluid at infinity subjected to a periodic suction
Guria M.
International Journal of Applied Mechanics and Engineering
|
2018
|
Vol. 23, no. 2
401--411
EN
The unsteady flow of a viscous incompressible fluid due to non-coaxial rotations of a porous disk and a fluid at infinity subjected to a periodic suction through a porous medium has been studied. The velocity field, shear stresses are obtained in closed form. The variations of primary and secondary velocities for different values of non dimensional parameters are depicted in figures.
5
Content available Effect of slip condition on vertical channel flow in the presence of radiation
Guria M.
International Journal of Applied Mechanics and Engineering
|
2016
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Vol. 21, no. 2
341--358
EN
An analysis is made on the three dimensional flow of a viscous incompressible fluid through a vertical channel in the presence of radiation in slip flow regime. The right plate is subjected to an uniform injection and the left plate to a periodic suction velocity distribution. The velocity and temperature fields have been derived using the perturbation technique. It is found that the velocity decreases with the increase of the slip parameter. It is also found that the velocity decreases with the increase of the radiation parameter but near the right plate it increases. For cooling of the plate, the velocity increases with the increase of the Grashoff number and decreases near the right plate but the reverse effect is observed for heating the plate.
6
Content available Radiation effect on three dimensional vertical channel flow through porous medium
Guria M.
International Journal of Applied Mechanics and Engineering
|
2015
|
Vol. 20, no. 4
817--833
EN
The flow of a viscous incompressible fluid through a vertical channel in the presence of radiation immersed in a porous medium has been studied. Approximate solutions have been obtained for the velocity and temperature fields, shear stresses and rate of heat transfer using the perturbation technique. It is found that the primary velocity decreases with an increase in the radiation parameter as well as the Prandtl number for cooling of the plate. It is also found that with an increase in the permeability parameter, the primary velocity increases for cooling of the plate. The magnitude of the secondary velocity decreases near the plate y = 0 and increases near the plate y = d with an increase in the permeability parameter. The temperature distribution decreases with an increase of the radiation parameter as wall as the Prandtl number for cooling of the plate. The shear stresses and the rate of heat transfer, which are of physical interest, are presented in the form of tables.
7
Content available Three-dimensional oscillating flow between two parallel plates through a porous medium
Guria M., Ghara N., Jana R. N.
International Journal of Applied Mechanics and Engineering
|
2013
|
Vol. 18, no. 4
1025--1037
EN
An unsteady Couette flow between two parallel plates when upper plates oscillates in its own plane and is subjected to a constant suction and the lower plate to a injection velocity distribution through the porous medium has been analyzed. The approximate solution has been obtained using perturbation technique. It is seen that the primary velocity increases whereas the secondary velocity decreases with an increase in permeability parameter. It is also found that the primary velocity increases with an increase in the Reynolds number as well as the suction parameter. The magnitude of the secondary velocity increases near the stationary plate but decreases near the oscillating plate with an increase in the Reynolds number. Whereas, it increases with an increase in the suction parameter.
8
Content available Flow of a visco-elastic fluid past a porous plate in a rotating system
Guria M., Jana R. N.
International Journal of Applied Mechanics and Engineering
|
2013
|
Vol. 18, no. 1
27--41
EN
An analysis is made on a steady flow of an incompressible visco-elastic fluid (of small memory) past a porous plate subject to uniform suction or blowing. The fluid and the plate rotate in unison with uniform angular velocity about an axis perpendicular to the plate. It is shown that for a visco-elastic fluid of small memory, a boundary layer is formed for uniform suction or blowing at the plate. It is found that the primary velocity increases whereas the secondary velocity increases near the plate and decreases away from the plate with an increase in the elastic parameter. The secondary flow shows flow reversal for a large elastic parameter. It is found that both primary and secondary velocities increase near the plate and decrease away from the plate with an increase in the rotation parameter. It is also found that the shear stress due to primary flow increases with an increase in either the elastic parameter or rotation parameter. On the other hand, the shear stress due to secondary flow decreases with an increase in the elastic parameter while it increases with an increase in the rotation parameter. The temperature distribution in the boundary layer is also determined. It is shown that elasticity leads to an increase in heat transfer at the plate.
9
Content available remote Three dimensional MHD free convection flow and heat transfer through a vertical channel
Guria M., Ghara N., Jana R. N.
International Journal of Applied Mechanics and Engineering
|
2010
|
Vol. 15, no 4
1047-1063
EN
An analysis is made on the three dimensional MHD flow of a viscous incompressible fluid through a vertical channel in the presence of a uniform injection on the right plate and the left plate is subject to a periodic suction. The velocity and temperature fields are derived using the perturbation technique. It is observed that the primary velocity increases near the left plate and decreases near the right plate with an increase in the Reynolds number while it decreases with an increase in the magnetic parameter. It is seen that with an increase in the Prandtl number the primary velocity decreases whereas it increases with an increase in the Grashof number. It is seen that the magnitude of the secondary velocity increases in the range […] and thereafter decreases with an increase in the Reynolds number. It is also seen that the shear stress due to primary flow increases with an increase in either the Grashof number or Reynolds number but decreases with an increase in the Prandtl number. It is seen that the shear stress […] at the plate […] decreases with an increase in the magnetic parameter. Also, the magnitude of the shear stress due to cross flow increases with an increase in the Reynolds number. It is seen that the temperature at any point decreases with an increase in either the Prandtl number or Reynolds number. The rate of heat transfer in terms of the Nusselt number is also studied. Dimensional variables are indicated by dropping the asterisk and are defined in Eq.(2.8).
10
Content available remote Radiation effect on three dimensional vertical channel flow
Guria M., Ghara N., Jana R. N.
International Journal of Applied Mechanics and Engineering
|
2010
|
Vol. 15, no 4
1065-1081
EN
An analysis is made of the three dimensional flow of viscous incompressible fluid through a vertical channel in the presence of a uniform injection on the right plate and a periodic suction velocity distribution on the left plate with radiation effect. The velocity and temperature fields are derived using the perturbation technique. It is found that the primary velocity decreases with an increase in the radiation parameter. It is seen that the shear stress due to primary flow increases with an increase in the Reynolds number but decreases with an increase in the radiation parameter. It is also seen that the temperature decreases with an increase in the radiation parameter. The rate of heat transfer in terms of the Nusselt number is also studied.
11
Content available remote Hall effects on unsteady MHD flow between two disks with non-coincident parallel axes of rotation
Das S., Maji M., Guria M., Jana R. N.
International Journal of Applied Mechanics and Engineering
|
2010
|
Vol. 15, no 1
5-18
EN
Hall effects on the unsteady MHD flow of a viscous incompressible electrically conducting fluid between two disks with reference to non-coaxial parallel axes of rotation have been studied. It is rigorously stated that there arises an axisymmetric solution of this problem as referred to a rigid body rotation. An exact solution of the governing equation has been obtained by applying the Laplace transform technique. It is found that the torque experienced by the disks decreases with an increase in the Hall parameter, m.
12
Content available remote Hydrodynamic flow through porous medium between two porous disks rotating about non-coincident axes
Maji S. L., Guria M., Manna G., Jana R. N.
International Journal of Applied Mechanics and Engineering
|
2009
|
Vol. 14, no 1
239-250
EN
A hydrodynamic viscous incompressible fluid flow through a porous medium between two porous disks rotating with same angular velocity [...] about two non-coincident axes has been studied. An exact solution of the governing equations has been obtained in a closed form. It is found that the primary velocity [...] increases and the secondary velocity [...] decreases with an increase in either the Reynolds number Re or porosity parameter [...]. It is also found that the torque at the disks [...] and [...] decreases with an increase in either [...] or . The heat transfer haracteristic has also been studied on taking viscous dissipation into account. It is found that the rate of heat transfer at both the disks [...] and [...] decreases with an increase in [...].
13
Content available remote Unsteady hydrodynamic flow between two disks with non-coincident parallel axes of rotation
Manna G., Maji S. L., Guria M., Jana R. N.
International Journal of Applied Mechanics and Engineering
|
2008
|
Vol. 13, no 4
967-978
EN
An unsteady flow of a viscous incompressible fluid between two disks with reference to non-coaxial parallel axes of rotation has been studied. It is rigorously stated that there arises an axisymmetric solution of this problem in the case of a rigid body rotation. An exact solution of the governning equations has been obtained by applying the Laplace transform technique. The torque, required to overcome the transverse shearing stress on a disk, has also been calculated. It is found that the torque obtained from the general solution on the disks decreases with an increase in time. On the other hand, for small time the torque on the disks increases with an increase in time.
14
Content available remote Effect of wall conductance on MHD Couette flow and heat transfer in a rotating system
Guria M., Jana R. N., Ghosh S. K.
International Journal of Applied Mechanics and Engineering
|
2008
|
Vol. 13, no 1
75-90
EN
The effect of wall conductance on the hydromagnetic Couette flow and heat transfer between two parallel plates in a rotating frame of reference in the presence of an applied uniform transverse magnetic field is studied. An exact solution of the goveming equations has been obtained. It is found that both the primary and the secondary velocities decrease with an increase in wall conduetance parameter. It is also found that the induced magnetic field components increase with an increase in wall conduetance parameter. The shear stresses at the lower plate decrease with an increase in wall conductivity. The heat transfer characteristic has also been studied on taking viscous and Joule dissipation into account.
15
Content available remote Three dimensionaI oscillating flow between two parallel plates with heat transfer
Guria M., Jana R. N.
International Journal of Applied Mechanics and Engineering
|
2007
|
Vol. 12, no 1
19-35
EN
The unsteady viscous incompressible Couette flow between two parallei plates when the upper plate oscillates in its own piane and is subjected to a constant suction whereas the lower plate is subjected to a suction velocity distribution has been theoretically analyzed. An approximate solution has been obtained using perturbation technique. It is found that the main flow velocity increases with an increase in the Reynolds number as well as suction parameter but it decreases with an increases in the frequency parameter. It is also shown that with an increase in the Reynolds number, the magnitude of the cross velocity increases near the stationary plate but decreases near the oscillating plate. On the other hand, it increases with an increase in the suction parameter. The heat transfer characteristic has also been studied by taking viscous dissipation into account. It is found that the temperature increases with an increase in the Reynolds number as well as the Prandtl number but it decreases with an increase in the frequency parameter.
16
Content available remote Flow due to non-coaxial rotations of a permeable disk and a fluid at infinity through a porous medium
Guria M., Manna G., Jana R. N., Pop I.
International Journal of Applied Mechanics and Engineering
|
2007
|
Vol. 12, no 4
965-974
EN
Au exact solution of the flow due to non-co-axial rotation of a porous disk and a fluid at infinity through porous medium is obtained. It is found that the thickness of the boundary layer decreases with increase in permeability of the porous medium. The heat transfer characteristic of the flow has also been studied on taking viscous dissipation into account. It is found that the rate of heat transfer at the disk increases with increase in either suction at the disk or the permeability of the medium.
17
Content available remote Hydrodynamic flows through vertical wavy channel with travelling thermal waves embedded in porous medium
Guria M., Jana R. N.
International Journal of Applied Mechanics and Engineering
|
2006
|
Vol. 11, no 3
609-621
EN
This paper analyze the two dimensional free and forced convection flow and heat transfer in a vertical wavy channel with travelling thermal waves embedded in porous medium. The set of non-linear ordinary differential equations are solved analytically. The velocity and temperature field have been obtained using perturbation technique. The effects of non-dimensional parameter on the velocity and temperature profile are shown graphically. It is observed that the main flow velocity increases with increase in either permeability parameter or Grashof number. It is remarkable that the flow is reversed at the middle of the channel. It is found that for small values of frequency parameter it increases while it decreases for large values of frequency parameter. On the other hand the cross velocity decreases with increase in permeable parameter while it increases with increase in Grashof number. It is found that for small values of frequency parameter the cross velocity first increases and then decreases with increase in frequency parameter. The flow is also reversed for cross flow. it is seen that the shear stresses at the plates rises with increase in permeable parameter. The temperature profile decreases with increase in Prandtl number while it increases with increase in permeable parameter. Also it is seen that the heat transfer coefficient increases with increase in permeable parameter but decreases with increase in Grashof number.
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