Heat and Mass Transfer by Unsteady Natural Convection over a Moving Vertical Plate Embedded in a Saturated Porous Medium with Chemical Reaction, Soret and Dufour Effects

Rashad, A. M.

doi:10.18869/acadpub.jafm.67.222.22864

Cited by 20 publications

(5 citation statements)

References 27 publications

(20 reference statements)

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“…In order to verify the validity and accuracy of the present analysis, the results for the mass transfer −𝜑 ′ (0) were compared with those reported by jawad et al, (25). The comparison in the above cases is found to be in excellent agreement as shown in Table 2.…”

Section: Resultssupporting

confidence: 69%

Analytical Study of MHD Mixed Convection Flow for Maxwell Nanofluid Through a Vertical Cone with Porous Material in the Presence of Variable Thermal Conductivity and Soret, Dufour Effects

Indira Sundaram,

Srinivasa Raju Rallabandi

2023

ARFMTS

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The key purpose of the existing article is to discuss the magnetohydrodynamic (MHD) mixed convection flow for Maxwell nanofluid is deliberated a vertical cone with porous material. A variable thermal conductivity and Dufour, Soret effects are also taken into consideration. The modeled equations are transformed into a set of non-linear ODEs by employing similar transformable variables. These equations are then solved numerically using the shooting method, through the fourth-order Runge–Kutta integration procedure. Effects of some prominent physical parameters, such as diffusion thermo, Prandtl number, thermophoresis parameter, and magnetic parameter on the velocity, temperature, and concentration profiles are discussed graphically and numerically. The main outcomes of this investigation are that Velocity slows down with augmentation in Maxwell and magnetic parameters. Temperature increases with radiation and thermophoresis parameters and reduces with growing values of Prandtl number and Brownian motion parameters. The values of skin-friction coefficient, Nusselt number coefficient and Sherwood number coefficient are presented in table. A comparison with previously reported data is made and an excellent agreement is noted.

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Section: Resultssupporting

confidence: 69%

Analytical Study of MHD Mixed Convection Flow for Maxwell Nanofluid Through a Vertical Cone with Porous Material in the Presence of Variable Thermal Conductivity and Soret, Dufour Effects

Indira Sundaram,

Srinivasa Raju Rallabandi

2023

ARFMTS

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“…Similarly, the effects of Dufour and Soret were reported on different papers by (EI-Kabeir et al [14], Chamkha and Rashad [15], Rashad and Chamkha [16], EL-Kabeir et al [17] and Al-Mudhaf et al [18]. It was found that an enhancement in the Dufour number produced a reduction in the local Nusselt number but boosts the local Sherwood number.…”

Section: Introductionmentioning

confidence: 67%

Numerical solution of micropolar nanofluids with Soret, Dufor effects and multiple slip conditions

Ibrahim

Zemedu

2020

J. Phys. Commun.

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The objective of this study is to explore the effects of Dufour and Soret with multiple slip conditions on 3D boundary layer flow of a micropolar nanofluid. The mathematical modeling for the flow problem has been created. Using appropriate similarity transformation and non-dimensional variable, the governing non-linear boundary value problem is reduced to a coupled high order non-linear ordinary differential equations which is numerically solved. The solutions were using method bvp4c from matlab software for different quantities of governing parameters. The influences of different parameters on skin friction coefficients (s 0 as well as the velocities, temperature, and concentration are examined and discussed through tables and graphs. The finding results indicate the skin friction coefficients, wall duo stresses coefficients (along both x-and y-axes), the Nusselt number and the Sherwood number demonstrate decreasing behavior for an increase in slip parameters but the opposite effects are detected with the values of stretching ratio parameters. A comparison with previous studies available in the literature has been done and a very good agreement is obtained.Nomenclature

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“…Partha 25 researched the nonlinear natural convection in a permeable substance which is non‐Darcy. Rashad et al 26 explored mass and heat transport‐free convective flow past a vertically movable surface incorporated into a saturated permeable material with a chemical reaction. Chamkha and Quadri 27 analyzed the concurrent transfer of heat and mass by the free convective flow on an upright permeable surface immersed in a homogeneous permeable material in the existence of effects of inertia and thermal dispersion.…”

Section: Introductionmentioning

confidence: 99%

MHD nonlinear natural convection from a uniformly moving porous vertical plate with constant heat and mass flux in the presence of thermal radiation, diffusion‐thermo, heat sink, and chemical reaction

Khanam,

Ahmed

2023

Heat Trans

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An attempt has been made to investigate the problem of nonlinear free convection heat and mass transfer flow past an infinite vertical porous plate embedded in a porous medium by taking into account thermal radiation and heat sink with constant heat and mass flux. Transversely oriented and of uniform strength , a magnetic field has been introduced to the fluid area. The nonlinear density variation with temperature as well as concentration are the basis for the current physical situation, which is explained by this mathematical model. Exact solutions are derived for momentum equation, energy equation, and species continuity equation under the relevant boundary conditions. The dimensionless governing equations are analytically solved. The influence of various physical parameters, such as Dufour number, Schmidt number, thermal Grashof number, magnetic parameter, mass Grashof number, heat sink, thermal radiation, Prandtl number, chemical reaction parameter on the flow, and transport characteristic, has been presented graphically and in tabular form. The novelty of the present investigation is that here both constant heat and mass flux at the plate are taken into account in addition to thermal radiation and heat sink. The findings of the mathematical study demonstrate that velocity, temperature, and skin friction intensify with a rise in the Dufour number this is due to the fact that the convection current becomes stronger as the Dufour number rises. Fluid's concentration declines as the Schmidt number grows, or the concentration rises as the mass diffusivity rises. Fluid temperature is enhanced with high thermal diffusivity. Frictional resistance on the plate hikes due to thermal buoyancy force.

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Heat and Mass Transfer by Unsteady Natural Convection over a Moving Vertical Plate Embedded in a Saturated Porous Medium with Chemical Reaction, Soret and Dufour Effects

Cited by 20 publications

References 27 publications

Analytical Study of MHD Mixed Convection Flow for Maxwell Nanofluid Through a Vertical Cone with Porous Material in the Presence of Variable Thermal Conductivity and Soret, Dufour Effects

Analytical Study of MHD Mixed Convection Flow for Maxwell Nanofluid Through a Vertical Cone with Porous Material in the Presence of Variable Thermal Conductivity and Soret, Dufour Effects

Numerical solution of micropolar nanofluids with Soret, Dufor effects and multiple slip conditions

MHD nonlinear natural convection from a uniformly moving porous vertical plate with constant heat and mass flux in the presence of thermal radiation, diffusion‐thermo, heat sink, and chemical reaction

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