Entropy Generation Rate in Unsteady Buoyancy-Driven Hydromagnetic Couple Stress Fluid Flow Through a Porous Channel

Kareem, S.O.; Adesanya, SO; Falade, J.A.; Vincent, U. E.

doi:10.12732/ijpam.v115i2.9

Cited by 5 publications

(2 citation statements)

References 26 publications

(39 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also another research done by (Kareem et al,. 2017) on Entropy generation rate in unsteady buoyancy-driven hydro magnetic couple stress fluid flow through a porous channel showed a great result yet very useful to other researchers in which they come to investigate that, the entropy generation rate in the fluid model depends on the internal forces between the fluid parcels.…”

Section: Introductionmentioning

confidence: 97%

Effect of Magnetic Field on the wall Permeable Channel Flow with Convective Cooling

Mfinanga

Iddi

2020

IJASRE

View full text Add to dashboard Cite

This study aimed at making an investigation on the effect of the magnetic field on second law analysis for magnetohydrodynamic (MHD) permeable channel flow with convective cooling. Specifically, the study intended to develop a flow model for a case of nanofluid in a channel, determining the effect of different parameters on velocity and temperature of nanofluid and to determine the effect of the magnetic field on the channel flow of nanofluid.In this study, the appropriate mathematical model for the problem was derived from the laws of conservation, momentum and energy balance where both first and second laws of thermodynamics are utilized to analyze the model problem. Using the discretization finite difference method together with the Runge-Kutta Fehlberg integration scheme, the governing partial differential equations are solved numerically and implemented on the Computer using Matlab software. The findings showed that the alumina water nanofluid tended to flow quicker than copper water nanofluid and the velocity profile increased with Hartmann number but decreased with the quantity of nanoparticle volume fraction and magnetic field.

show abstract

Section: Introductionmentioning

confidence: 97%

Effect of Magnetic Field on the wall Permeable Channel Flow with Convective Cooling

Mfinanga

Iddi

2020

IJASRE

View full text Add to dashboard Cite

show abstract

“…The authors used the LTNE modeling technique to study thermal effects in the cavities, which are having porous materials and on Phenomenon in a magnetized porous channel influence of magnetohydrodynamics on the entropy generation in chemically reactive porous media. Kareem et al (2017) have studied the influences of entropy generation on the propulsion of unsteady couple stress fluid in a porous channel. As per the authors analysis the entropy generation increases in the channel it is due to Lorentz force.…”

Section: Introductionmentioning

confidence: 99%

A computational analysis of heat transport irreversibility phenomenon in a magnetized porous channel

Marzougui

Bouabid

Mebarek‐Oudina

et al. 2020

HFF

View full text Add to dashboard Cite

Purpose The purpose of this paper is to evaluate the temperature, the Dirichlet conditions have been considered to the parallel horizontal plates. The model of generalized Brinkman-extended Darcy with the Boussinesq approximation is considered and the governing equations are computed by COMSOL multiphysics. Design/methodology/approach In the current study, the thermodynamic irreversible principle is applied to study the unsteady Poiseuille–Rayleigh–Bénard (PRB) mixed convection in a channel (aspect ratio A = 5), with the effect of a uniform transverse magnetic field. Findings The effects of various flow parameters on the fluid flow, Hartmann number (Ha), Darcy number (Da), Brinkman number (Br) and porosity (ε), are presented graphically and discussed. Numerical results for temperature and velocity profiles, entropy generation variations and contour maps of streamlines, are presented as functions of the governing parameter mentioned above. Basing on the generalized Brinkman-extended Darcy formulation, which allows the satisfaction of the no-slip boundary condition on a solid wall, it is found that the flow field and then entropy generation is notably influenced by the considering control parameters. The results demonstrate that the flow tends toward the steady-state with four various regimes, which strongly depends on the Hartman and Darcy numbers variations. Local thermodynamic irreversibilities are more confined near the active top and bottom horizontal walls of the channel when increasing the Da and decreasing the Hartmann number. Entropy generation is also found to be considerably affected by Brinkman number variation. Originality/value In the present work, we are presenting our investigations on the influence of a transverse applied external magnetohydrodynamic on entropy generation at the unsteady laminar PRB flow of an incompressible, Newtonian, viscous electrically conducting binary gas mixture fluid in porous channel of two horizontal heated plates. The numerical solutions for the liquid velocity, the temperature distribution and the rates of heat transport and entropy generation are obtained and are plotted graphically.

show abstract

Study of entropy generation in transient hydromagnetic flow of couple stress fluid due to heat and mass transfer from a radiative vertical cylinder

2019

View full text Add to dashboard Cite

Entropy Generation Rate in Unsteady Buoyancy-Driven Hydromagnetic Couple Stress Fluid Flow Through a Porous Channel

Cited by 5 publications

References 26 publications

Effect of Magnetic Field on the wall Permeable Channel Flow with Convective Cooling

Effect of Magnetic Field on the wall Permeable Channel Flow with Convective Cooling

A computational analysis of heat transport irreversibility phenomenon in a magnetized porous channel

Study of entropy generation in transient hydromagnetic flow of couple stress fluid due to heat and mass transfer from a radiative vertical cylinder

Contact Info

Product

Resources

About