MHD couple stress nanofluid flow in a permeable wall channel with entropy generation and nonlinear radiative heat

Makinde, Oluwole Daniel; Eegunjobi, Adetayo Samuel

doi:10.1299/jtst.2017jtst0033

Cited by 26 publications

(14 citation statements)

References 24 publications

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“…The following assumptions are adopted to facilitate the solution of the governing equations. Under these assumptions, the governing equations of the system are [7][8][9]22] ν…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…Kaladhar [21] has obtained a solution using a homotopy analysis method for the natural convection of a couple stress fluids between two vertical plates, taking into account the Hall and Joule heating effects. Numerically, Makinde and Eegunjobi [22] contemplated the combined effects of nonlinear thermal radiation, buoyancy forces, thermophoresis, and Brownian motion on the entropy generation rate in hydromagnetic couple stress nanofluid flow through a vertical channel utilizing a shooting technique combined with the Runge-Kutta-Fehlberg method.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Thermal Radiation, Heat Generation, and Induced Magnetic Field on Hydromagnetic Free Convection Flow of Couple Stress Fluid in an Isoflux-Isothermal Vertical Channel

Zaidi

Yousif

Nasreen

2020

Journal of Applied Mathematics

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The study scrutinizes the effects of thermal radiation, heat generation, and induced magnetic field on steady, fully developed hydromagnetic free convection flow of an incompressible viscous and electrically conducting couple stress fluid in a vertical channel. The channel walls are maintained at an isoflux-isothermal condition, such that the left channel wall is maintained at a constant heat flux. In contrast, the right channel wall is maintained at a constant temperature. The governing simultaneous equations are solved analytically utilizing the method of undetermined coefficient, and closed form solutions in dimensionless form have been acquired for the velocity field, the induced magnetic field, and the temperature field. The expression for the induced current density has been also obtained. A parametric study for the velocity, temperature, and induced magnetic field profiles, as well as for the skin-friction coefficient, Nusselt number, and induced current density, is conducted and discussed graphically.

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“…The following assumptions are adopted to facilitate the solution of the governing equations. Under these assumptions, the governing equations of the system are [7][8][9]22] ν…”

Section: Mathematical Formulationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Thermal Radiation, Heat Generation, and Induced Magnetic Field on Hydromagnetic Free Convection Flow of Couple Stress Fluid in an Isoflux-Isothermal Vertical Channel

Zaidi

Yousif

Nasreen

2020

Journal of Applied Mathematics

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“…Eldabe et al [31] examined the influence of Soret, Darcy, Hartmann and Schmidt numbers, and couple stress fluid parameter, on the heat and mass transfer with MHD flow of couple stress fluid through a porous medium. The irreversibility of heat and mass transfer of a couple stress nanofluid flow through a saturated magnetoporous vertical channel and a radiative heat transfer with entropy generation was realized in the papers [32,33]. Mondal et al [34], presented a study of heat and mass transfer for a stress-induced nanofluid in a magneto-porous medium with heat generation and thermal radiation.…”

Section: Introductionmentioning

confidence: 99%

Deep Investigation on Natural Convection Flow of a Couple Stress Fluid with Nanoparticles in an MHD Vertical Porous Channel with Convective Boundary Conditions

Tayeb¹,

Bouaziz²

2020

IJHT

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This paper looks at the MHD natural convection flow through a vertical porous channel of couple stress fluid nanoparticles under convective heat conditions at the wall of the channel. Incorporated Soret and Dufour effects lead to strong coupled and highly nonlinear differential systems. To describe accurately all the physical phenomenon, the nanoparticle's volume fraction is taken into account. The useful technical of the similarity transformations is used to produce an ordinary system which is numerically solved. Graphical illustrations containing non-dimensional velocity, temperature, concentration and concentration of nanoparticles are extensively presented for different values of various thermophysical parameters. Main quantities of interest as Nusselt and Sherwood numbers at both the walls are tabulated.

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“…The entropy generation in a mixed convection flow of nanofluid in a vertical porous channel is investigated by Makinde and Tshehla [38] in the presence of Lorentz force. Some of the recent investigations on the minimization of entropy generation are reported in [39,40,41,42,43,44,45,46,47,48].…”

Section: Introductionmentioning

confidence: 99%

Second Law Analysis of Dissipative Nanofluid Flow over a Curved Surface in the Presence of Lorentz Force: Utilization of the Chebyshev–Gauss–Lobatto Spectral Method

et al. 2019

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The primary objective of the present work is to study the effects of heat transfer and entropy production in a nanofluid flow over a curved surface. The influences of Lorentz force and magnetic heating caused by the applied uniform magnetic field and energy dissipation by virtue of frictional heating are considered in the problem formulation. The effects of variable thermal conductivity are also encountered in the present model. The dimensional governing equations are reduced to dimensionless form by introducing the similarity transformations. The dimensionless equations are solved numerically by using the Chebyshev–Gauss–Lobatto spectral method (CGLSM). The rate of increase/increase in the local Nusselt number and skin friction coefficient are estimated by using a linear regression model. The expression for dimensionless entropy production is computed by employing the solutions obtained from dimensionless momentum and energy equations. Various graphs are plotted in order to examine the effects of physical flow parameters on velocity, temperature, and entropy production. The increase in skin friction coefficient with magnetic parameter is high for nanofluid containing copper nanoparticles as compared to silver nanoparticles. The analysis reveals that velocity, temperature, and entropy generation decrease with the rising value of dimensionless radius of curvature. Comparative analysis also reveals that the entropy generation during the flow of nanofluid containing copper nanoparticles is greater than that of containing silver nanoparticles.

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MHD couple stress nanofluid flow in a permeable wall channel with entropy generation and nonlinear radiative heat

Cited by 26 publications

References 24 publications

Effects of Thermal Radiation, Heat Generation, and Induced Magnetic Field on Hydromagnetic Free Convection Flow of Couple Stress Fluid in an Isoflux-Isothermal Vertical Channel

Effects of Thermal Radiation, Heat Generation, and Induced Magnetic Field on Hydromagnetic Free Convection Flow of Couple Stress Fluid in an Isoflux-Isothermal Vertical Channel

Deep Investigation on Natural Convection Flow of a Couple Stress Fluid with Nanoparticles in an MHD Vertical Porous Channel with Convective Boundary Conditions

Second Law Analysis of Dissipative Nanofluid Flow over a Curved Surface in the Presence of Lorentz Force: Utilization of the Chebyshev–Gauss–Lobatto Spectral Method

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