Entropy generation due to MHD flow in a porous channel with Navier slip

Das, S.; Jana, R. N.

doi:10.1016/j.asej.2013.11.005

Cited by 68 publications

(49 citation statements)

References 28 publications

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“…In the above equations, the subscripts , nf f and s denote the thermophysical properties of the nanofluid, base fluid and nano-solid particles, respectively. To obtain the non-dimensional form of the above system of ordinary differential equations, the following dimensionless variables are introduced (Das and Jana, 2014;Das et al, 2015):…”

Section: Physical Properties Cmcwater Cumentioning

confidence: 99%

MHD Nanofluid Flow With Viscous Dissipation and Joule Heating Through a Permeable Channel

Sayehvand¹,

Abelman²,

Parsa³

2017

Frontiers in Heat and Mass Transfer

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Magnetohydrodynamic (MHD) nanofluid flow considered to be steady, incompressible and electrically conducting, flows through permeable plates in the presence of convective heating, models as a system of nonlinear partial differential equations which are solved analytically by the Differential Transform Method (DTM). Copper, aluminum oxide and titanium dioxide nanoparticles are considered with Carboxyl Methyl Cellulose (CMC)-water as the base fluid. Variation of the effects of pertinent parameters on fluid velocity and temperature is analyzed parametrically. Verification between analytical (DTM) and numerical (fourth-order Runge-Kutta scheme) results and previous published research is shown to be quite agreeable. The temperature of Cu-water is found to be low in comparison with 2 3Al O -water and 2TiO -water which is reasonable for high thermal conductivity of copper. Furthermore increasing the volume fraction of nanoparticles causes enhancement of thermal conductivity and decrease in temperature.

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Section: Physical Properties Cmcwater Cumentioning

confidence: 99%

MHD Nanofluid Flow With Viscous Dissipation and Joule Heating Through a Permeable Channel

Sayehvand¹,

Abelman²,

Parsa³

2017

Frontiers in Heat and Mass Transfer

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“…In reality, non-Newtonian couple stress fluid are used as working fluids in many technological and industrial processes, including polymer technology, petroleum industry [20]. Motivated by studies in [6,7,8,9,21,10,11,12,13,14,15,16,17,18,19], the objective of the present study is to examine the influence of magnetic field and Ohmic heating of the couple stress fluid on the entropy production within the flow channel, which has not been accounted for in the literature. The outcoming results is expected to enhance many industrial and thermal engineering processes whose working medium is non-Newtonian fluid, with a view to minimise entropy generation which tends to deplete the amount of available energy for work.…”

Section: Introductionmentioning

confidence: 99%

“…In a related work, Reza and Gupta [7] examined the flow of a combination of incompressible viscous electrically conducting fluids in the presence of a transverse uniform magnetic field. Das and Jana [8] presented the second law analysis for magnetohydrodynamic incompressible fluid flow through a porous channel by imposing Navier slip conditions at the walls. Adesanya and Falade [9] analysed the inherent irreversibility in the flow of hydrodynamic third grade fluid through a channel saturated with porous materials.…”

Section: Introductionmentioning

confidence: 99%

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

Kareem¹,

Adesanya²,

Falade³

et al. 2017

Int. J. of Pure and Appl. Math.

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In this paper, the entropy generation rate in unsteady buoyancy-driven hydromagnetic couple stress fluid flow through a porous channel has been investigated. The partial differential equations are converted into their corresponding dimensionless equivalence, including the prescribed initial boundary conditions. These equations were solved using the Adomian decomposition method and the behaviour of some pertinent fluid variables, such as velocity, temperature, entropy generation rate and the irreversibility ratio were examined and discussed for different parameters of interest, which include, the Grashof number, the Hartmann's number, the Reynolds number, the Brinkman number and the couple stress pa- Graphs are shown to illustrate the findings.

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“…In [31], Havzali et al investigated the inherent irreversibility in a Newtonian gravity-driven flow through an inclined channel. Other related works on the second law analysis approach for minimizing entropy generation includes [32][33][34][35][36]. Interestingly, there is a thin line between the second law analysis approach and that described by the material cost flow accounting perspective [37][38][39] regarding waste management and achieving a cleaner production.…”

Section: Introductionmentioning

confidence: 99%

Second Law Analysis for Couple Stress Fluid Flow through a Porous Medium with Constant Heat Flux

Adesanya

Fakoya

2017

Entropy

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Abstract:In the present work, entropy generation in the flow and heat transfer of couple stress fluid through an infinite inclined channel embedded in a saturated porous medium is presented. Due to the channel geometry, the asymmetrical slip conditions are imposed on the channel walls. The upper wall of the channel is subjected to a constant heat flux while the lower wall is insulated. The equations governing the fluid flow are formulated, non-dimensionalized and solved by using the Adomian decomposition method. The Adomian series solutions for the velocity and temperature fields are then used to compute the entropy generation rate and inherent heat irreversibility in the flow domain. The effects of various fluid parameters are presented graphically and discussed extensively.

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Entropy generation due to MHD flow in a porous channel with Navier slip

Cited by 68 publications

References 28 publications

MHD Nanofluid Flow With Viscous Dissipation and Joule Heating Through a Permeable Channel

MHD Nanofluid Flow With Viscous Dissipation and Joule Heating Through a Permeable Channel

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

Second Law Analysis for Couple Stress Fluid Flow through a Porous Medium with Constant Heat Flux

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