Hall current effect on MHD mixed convection flow from an inclined continuously stretching surface with blowing/suction and internal heat generation/absorption

The present research may facilitate the reduction of the number of conversion steps required to include the low output voltages in an electrokinetic biomass process. Variable thermal conductivity and electroosmosis flow have already established great potential in the thermoelastic models of various manufacturing industries and have been widely used in energy technologies. As a result, the current framework investigates the characteristics of natural convection flow with the influence of variable thermal conductivity and electroosmosis over an eternity vertical porous plate. Coriolis forces and Hall current effects are considered in the momentum equations, and also thermal radiation and variable thermal conductivity are taken as energy equations. A linear chemical reaction parameter is used in the concentration equation. The equation of Poisson-Boltzmann is exploited to depict the electric potential characteristics within the accelerated plate medium. The pdepe command in Matlab software is used to figure out the numerical solutions to equations about momentum, energy, and concentration. The expressions of fluid transverse velocity, fluid axial velocity, fluid temperature, and concentration profiles

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“…Presuming Hall currents, the extrapolated Ohm's law can be expressed as follows 55

j=\left(-\left(\frac{1}{{e}^{^{\prime} }\,{n}_{e}}\right)\,j\times {\bf{B}}+{\bf{E}}+{\bf{V}}\times {\bf{B}}\right)\left(\frac{\sigma }{1+{m}^{2}}\right),

…”

Section: Mathematical Formulationmentioning

confidence: 99%

Rotation, electromagnetic field, and variable thermal conductivity effects on free convection flow past an eternity vertical porous plate

Bharathi¹,

Prakash²,

Vijayaragavan

et al. 2022

Heat Trans

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“…The Hall current is important under these conditions and has a marked effect on the magnitude and direction of the current density and consequently on the magnetic force term. Various researchers [1][2][3][4][5][6][7][8] have examined the channel flows of a viscous fluid under the action of a transversely applied magnetic field. The role of combined effect of magnetic field is significant in increasing or decreasing fluid velocity or skin-friction and also in attainment of steady state Oni [2].…”

Section: Introductionmentioning

confidence: 99%

MHD Mixed Convection Chemically Reactive Casson Fluid Flow over an Inclined Stretching/Shrinking Sheet: Paired Quasilinearization Approach (PQLM)

Ayano¹,

Otegbeye²,

Motsa³

2019

MMEP

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The aim of this paper is to investigate the flow, heat, and mass transfer qualities in a Casson liquid overflow over a stretching/shrinking sheet in the presence of transverse magnetic field by considering diffusion-thermal, thermo-diffusion, chemical reaction, and hall effects. This investigation is carried out by studying the influence of selected governing parameters, namely, chemical reaction, Hall, suction/blowing, and Soret and Dufour number on the respective flow profiles of velocity, temperature, and concentration and their corresponding effect on the skin-friction coefficient, local Nusselt number, and Sherwood number. The nonlinear governing equations are transformed into nonlinear partial differential equations and solved with the efficient paired quasilinearization method that seeks to decouple a large system of equations into coupled pairs of equations by linearizing two functions and their corresponding derivatives at a time. The study reveals that increasing the value of chemical reaction, Hall, Dufour and Soret parameters significantly impacted on the flow profiles. The results suggest that while increasing chemical reaction and Dufour number decreases velocity and concentration of the liquid, the Hall parameter increases them while decreasing the secondary velocity and temperature. Applications of the study arise in magnetic field control of materials processing systems, electric transformers, manufacture processes in plastic and polymer etc.

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“…Abo-Eldahab and Abd El-Aziz 17 presented an analysis for the effects of viscous dissipation and Joule heating on the flow of an electrically conducting and viscous incompressible fluid past a semi-infinite plate in the presence of a strong transverse magnetic field and heat generation/absorption with Hall and ion-slip effects. Abo-Eldahab et al 18 and Salem and Abd El-Aziz 19 dealt with the effect of Hall current on a steady laminar hydromagnetic boundary layer flow of an electrically conducting and heat generating/absorbing fluid along a stretching sheet.…”

Section: Introductionmentioning

confidence: 99%

Variable Viscosity on Magnetohydrodynamic Fluid Flow and Heat Transfer over an Unsteady Stretching Surface with Hall Effect

Shateyi

Motsa

2010

Bound Value Probl

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The problem of magnetohydrodynamic flow and heat transfer of a viscous, incompressible, and electrically conducting fluid past a semi-infinite unsteady stretching sheet is analyzed numerically. The problem was studied under the effects of Hall currents, variable viscosity, and variable thermal diffusivity. Using a similarity transformation, the governing fundamental equations are approximated by a system of nonlinear ordinary differential equations. The resultant system of ordinary differential equations is then solved numerically by the successive linearization method together with the Chebyshev pseudospectral method. Details of the velocity and temperature fields as well as the local skin friction and the local Nusselt number for various values of the parameters of the problem are presented. It is noted that the axial velocity decreases with increasing the values of the unsteadiness parameter, variable viscosity parameter, or the Hartmann number, while the transverse velocity increases as the Hartmann number increases. Due to increases in thermal diffusivity parameter, temperature is found to increase.

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Hall current effect on MHD mixed convection flow from an inclined continuously stretching surface with blowing/suction and internal heat generation/absorption

Cited by 16 publications

References 21 publications

Rotation, electromagnetic field, and variable thermal conductivity effects on free convection flow past an eternity vertical porous plate

Rotation, electromagnetic field, and variable thermal conductivity effects on free convection flow past an eternity vertical porous plate

MHD Mixed Convection Chemically Reactive Casson Fluid Flow over an Inclined Stretching/Shrinking Sheet: Paired Quasilinearization Approach (PQLM)

Variable Viscosity on Magnetohydrodynamic Fluid Flow and Heat Transfer over an Unsteady Stretching Surface with Hall Effect

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