Heat and mass transfer on an unsteady MHD flow through porous medium between two porous vertical plates

Kodi, Raghunath; Mopuri, Obulesu; Sivaprasad, R.

doi:10.1063/5.0001103

Cited by 21 publications

(13 citation statements)

References 7 publications

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“…Sreedvei et al [ 24 ] employed the most powerful numerical scheme is known as the finite element technique for the investigation of Au − Eg and Ag − Eg Maxwell nanoliquid via stretching cylinder under the heat and mass transport impacts. Raghunath et al [ 25 ] scrutinized the unsteady magnetohydrodynamics flow in a porous media toward the vertical plates under the heat and mass transmission behavior and their conclusion shows that the Sherwood number is decreased when Schmidt number is enhanced. Yasmin et al [ 26 ] surveyed the magnetohydrodynamics flow of the non-Newtonian micropolar fluid problem above the curved stretched sheet including the heat and mass transmission characteristics and found that the fluid concentration is elevated with the increase of the radius of curvature.…”

Section: Introductionmentioning

confidence: 99%

Bidirectional flow of MHD nanofluid with Hall current and Cattaneo-Christove heat flux toward the stretching surface

Ramzan

Shah²,

Khan

et al. 2022

PLoS ONE

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Vacuum pump oil (VPO) is used as a lubricant in pumps of different machines. The rate of heat transport is a fundamental requirement of all phenomena. To enhance the rate of heat transmission and reduce the amount of energy consumed as a result of high temperatures. For this reason, the vacuum pump oil (VPO) is taken as a base fluid and Fe3O4 is the nanoparticles suspended in VPO. That’s why, the present study inspected the consequence of Hall current, Joule heating effect and variable thickness on these three-dimensional magnetohydrodynamics bidirectional flow of nanoliquid past on a stretchable sheet. Further, the Cattaneo-Christove heat flux and radiation impacts are also considered. The VPO−Fe3O4 nanofluid model is composed of momentum equations in x−direction, y−direction and temperature equations. The leading higher-order non-linear PDEs of the current study have been changed into non-linear ODEs with the implementation of appropriate similarity transformations. The procedure of the homotopy analysis method is hired on the resulting higher-order non-linear ODEs along with boundary conditions for the analytical solution. The significance of distinct flow parameters on the velocities in x−direction, y−direction and temperature profiles of the nanofluid have been encountered and briefly explained in a graphical form. Some important findings of the present modelling are that with the increment of nanoparticles volume fraction the nanofluid velocities in x−direction and y−direction are increased. It is also detected that higher estimations of magnetic field parameter, Prandtl number and thermal relaxation time parameter declined the nanofluid temperature. During this examination of the model, it is found that the Fe3O4-Vacuum pump oil (VPO) nanofluid enhanced the rate of heat transfer. Also, the vacuum pump oil (VPO) has many industrial and engineering applications. The current study will help to improve the rate of heat transmission by taking this into account due to which working machines will do better performance and the loss of useful energy will be decayed. Lastly, the skin friction coefficient and Nusselt number are also illustrated in a tabular form. Some major findings according to the numerical computation of the problem are that the enhancing estimations of magnetic parameter, nanoparticles volume fraction and wall thickness parameter augmented the skin friction coefficient in x−direction and Nusselt number. The reduction in skin friction coefficient of the nanofluid in y−direction is examined for Hall current and shape parameter.

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Section: Introductionmentioning

confidence: 99%

Bidirectional flow of MHD nanofluid with Hall current and Cattaneo-Christove heat flux toward the stretching surface

Ramzan

Shah²,

Khan

et al. 2022

PLoS ONE

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“…Multiple variables effect on MHD transient flow past a plate was reported by Dastagiri et al, [15]. Raghunath et al, [16] included considered Heat and mass relocate on an unsteady MHD flow from side to side permeable middle flanked by two porous perpendicular dishes. Hall current effects on MHD convective flow past a porous plate with thermal radiation, chemical reaction with radiation absorption was discussed by Obulesu et al, [17].…”

Section: Introductionmentioning

confidence: 99%

Unsteady MHD on Convective Flow of a Newtonian Fluid Past an Inclined Plate in Presence of Chemical Reaction with Radiation Absorption and Dufour Effects

Mopuri

Kodi²,

Peram³

et al. 2022

CFDL

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In this study, emission incorporation and Dufour belongings are investigated for uneven magnetohydrodynamic assorted convection stream over a disposed holey moving shield with thermal emission, heat assimilation, and homogenous substance reactions subjected to changeable suction. The governing momentum equation, as well as the energy and mass diffusion equations, have analytical solutions. The Nusselt number, the Sherwood number, in addition to velocity, temperature, attentiveness, and skin friction, are computed and examined analytically and visually in order to observe the manipulate of a variety of parameters. Grashof number (Gr), modified Grashof number (Gm), magnetic parameter (M), permeability parameter (K), Prandtl number (Pr), Heat Sink (Q), Radiation parameter (F), Dufour parameter (Du), Radiation absorption constraint (R), Schmidt number (Sc), and Chemical reaction parameter (K0) are all non-dimensional parameters with different values. In porous medium, slow-moving chemical reaction fluids are the only source of the issue. In the future, researchers may look at the inertia effects of porous medium for high-velocity flows. Researchers interested in radiation absorption effects in porous media will find this a highly helpful resource.

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“…Furthermore, Gebhart and Pera 24 studied the laminar flows, which arise in fluid due to the interaction of the gravity forces and density differences caused by the simultaneous diffusion of thermal energy and of chemical species neglecting the thermal diffusion and diffusion‐thermo effects because the level of species concentration is very low. Raghunath et al 25 have discussed heat and mass transfer on an unsteady MHD flow through a porous medium between two porous vertical plates. Raghunath et al 26 have analyzed the heat and mass transfer on unsteady MHD flow of a viscoelastic fluid past an infinite vertical oscillating porous plate.…”

Section: Introductionmentioning

confidence: 99%

Unsteady MHD fluid flow past an inclined vertical porous plate in the presence of chemical reaction with aligned magnetic field, radiation, and Soret effects

Kodi¹,

Gulle²,

Vaddemani³

et al. 2021

Heat Trans

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The aim of the present paper is to investigate the Soret effect due to mixed convection on unsteady magnetohydrodynamics flow past a semi‐infinite vertical permeable moving plate in the presence of thermal radiation, heat absorption, and homogenous chemical reaction subjected to variable suction. The plate is assumed to be embedded in a uniform porous medium and moves with a constant velocity in the flow direction in the presence of a transverse magnetic field. The equations governing the flow are transformed into a system of nonlinear ordinary differential equations by using the perturbation technique. Graphical results for the velocity distribution, temperature distribution, and concentration distribution based on the numerical solutions are presented and discussed. Also, the effects of various parameters on the skin‐friction coefficient and the rate of heat transfer in the form of Nusselt number, and rate of mass transfer in the form of Sherwood number at the surface are discussed. Velocity distribution is observed to increase with an increase in Soret number and in the presence of permeability, whereas it shows reverse effects in the case of the aligned magnetic field, inclined parameter, heat absorption coefficient, magnetic parameter, radiation parameter, and chemical reaction parameter.

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Heat and mass transfer on an unsteady MHD flow through porous medium between two porous vertical plates

Cited by 21 publications

References 7 publications

Bidirectional flow of MHD nanofluid with Hall current and Cattaneo-Christove heat flux toward the stretching surface

Bidirectional flow of MHD nanofluid with Hall current and Cattaneo-Christove heat flux toward the stretching surface

Unsteady MHD on Convective Flow of a Newtonian Fluid Past an Inclined Plate in Presence of Chemical Reaction with Radiation Absorption and Dufour Effects

Unsteady MHD fluid flow past an inclined vertical porous plate in the presence of chemical reaction with aligned magnetic field, radiation, and Soret effects

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