Double-diffusive MHD convective flow of heat and mass transfer over a stretching sheet embedded in a thermally-stratified porous medium

Falodun, B. O.; Omowaye, Adeola John

doi:10.1108/wje-09-2018-0306

Cited by 26 publications

(26 citation statements)

References 50 publications

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“…In the study the chemical reaction parameter is seen to decrease the concentration distribution. Falodun and Omowaye [16] studied doublediffusive MHD convective flow with chemical reaction using spectral homotopy analysis approach. Their study concluded that increase in chemical reaction parameter increases the local heat transfer rate.…”

Section: Introductionmentioning

confidence: 99%

Heat and Mass Transfer of Hydrodynamic Boundary Layer Flow along a Flat Plate with the Influence of Variable Temperature and Viscous Dissipation

Oyelami¹,

Falodun²

2021

IJHT

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This paper elucidates heat together with mass transfer through a flat plate and variable temperature as well as dissipative effects. The flow assumptions resulted to steady flow equations which were simplified with appropriate similarity variables. The simplified equations were numerically solved and results are presented both in graphs and tabular form. Effects of physical quantities of interest were presented graphically. The local skin friction is observed to increase because of increase in Schmidt number. Also, increase in Prandtl number is found to boast the local Nusselt number. The behaviour of increase in Prandtl number is found to be unstable within the boundary layer regime while increase in Eckert number produces heat energy within the fluid layers. Finally, the validation of the present problem is done by comparing with previous works and was in perfect agreement.

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Section: Introductionmentioning

confidence: 99%

Heat and Mass Transfer of Hydrodynamic Boundary Layer Flow along a Flat Plate with the Influence of Variable Temperature and Viscous Dissipation

Oyelami¹,

Falodun²

2021

IJHT

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“…The wall temperature

(T_{w})

and concentration

(C_{w})

and ambient temperature

T_{\infty}

and concentration

C_{\infty}

as defined in Falodun and Omowaye 20 is given as:

T_{w} = T_{0} + m_{1} x, C_{w} = C_{0} + m_{3} x, T_{\infty} = T_{0} + m_{2} x, C_{\infty} = C_{0} + m_{4} x

…”

Section: Equations Of Motionmentioning

confidence: 99%

“…Employing the above similarity variables on the equations of motion ( 17)-( 19) subject to (20) and ( 21) obtains the following coupled ordinary differential equation (ODE):…”

Section: Equations Of Motionmentioning

confidence: 99%

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Effects of heat and mass transfer on MHD nonlinear free convection non‐Newtonian fluids flow embedded in a thermally stratified porous medium

2021

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This communication examines heat alongside mass transport in a nonlinear free convection magnetohydrodynamics (MHD) non‐Newtonian fluid flow with thermal radiation and heat generation deep‐rooted in a thermally stratified penetrable medium. The Casson and Williamson fluid considered in this communication flos simultaneously across the boundary layer and are mixed together. The model of heat alongside mass transport is set up with chemical reaction and thermal radiation alongside heat generation to form a system of partial differential equations (PDEs). Appropriate similarity variables are used to simplify the PDEs to obtain systems of coupled ordinary differential equations. An efficiently developed numerical approach called the spectral homotopy analysis method was used in providing solutions to the transformed equations. A large value of Casson term is observed to degenerate the velocity plot while the Williamson parameter enhances the velocity profile. The parameter of thermal stratification is found to enhance the rate of heat transport within the boundary layer. An incremental value of the magnetic parameter declines the velocity of the fluid and the entire boundary layer thickness. The present result was compared with previous studies and was seen to be in good agreement.

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“…The study of Fagbade et al (2018) considered MHD natural convection flow of viscoelastic fluid over an accelerating permeable surface with thermal radiation and heat source or sink. Falodun and Omowaye (2019) recently considered double-diffusive MHD convective flow of heat and mass transfer over a stretching sheet embedded in a thermallystratified porous medium. Derakhshan et al (2019) studied hydrothermal analysis of magnetohydrodynamic nanofluid flow between two parallel using Akbari-Ganji's method.…”

Section: Introductionmentioning

confidence: 99%

Variable viscosity and thermal conductivity effects on Williamson fluid flow over a slendering stretching sheet

Dada

Onwubuoya

2020

WJE

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Purpose The purpose of this paper is to consider heat and mass transfer on magnetohydrodynamics (MHD) Williamson fluid flow over a slendering stretching sheet with variable thickness in the presence of radiation and chemical reaction. All pertinent flow parameters are discussed and their influence on the hydrodynamics, thermal and concentration boundary layer are presented with the aid of the diagram. Design/methodology/approach The governing partial differential equations are reduced into a system of ordinary differential equations with the help of suitable similarity variables. A discrete version of the homotopy analysis method (HAM) called the spectral homotopy analysis method (SHAM) was used to solve the transformed equations. SHAM is efficient, and it converges faster than the HAM. The SHAM provides flexibility when solving linear ordinary differential equations with the use of the Chebyshev spectral collocation method. Findings The findings revealed that an increase in the variable thermal conductivity hike the temperature and the thermal boundary layer thickness, whereas the reverse is the case for velocity close to the wall. Originality/value The uniqueness of this paper is the exploration of combined effects of heat and mass transfer on MHD Williamson fluid flow over a slendering stretching sheet. The Williamson fluid term in the momentum equation is expressed as a linear function and the viscosity and thermal conductivity are considered to vary in the boundary layer.

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Double-diffusive MHD convective flow of heat and mass transfer over a stretching sheet embedded in a thermally-stratified porous medium

Cited by 26 publications

References 50 publications

Heat and Mass Transfer of Hydrodynamic Boundary Layer Flow along a Flat Plate with the Influence of Variable Temperature and Viscous Dissipation

Heat and Mass Transfer of Hydrodynamic Boundary Layer Flow along a Flat Plate with the Influence of Variable Temperature and Viscous Dissipation

Effects of heat and mass transfer on MHD nonlinear free convection non‐Newtonian fluids flow embedded in a thermally stratified porous medium

Variable viscosity and thermal conductivity effects on Williamson fluid flow over a slendering stretching sheet

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