MHD natural convection in porous media-filled enclosures

Shehadeh, F. G.; Duwairi, H. M.

doi:10.1007/s10483-009-0905-6

Cited by 6 publications

(5 citation statements)

References 6 publications

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“…Magnetic field effect on the unsteady free convection flow in a square cavity filled with a porous medium with a constant heat generation reported by Revnic et al (2011). Shehadeh and Duwairi (2009) investigated MHD natural convection in porous media-filled enclosures, which were in good agreement with, reported experimental results. Shanthi et al (2011) have studied finite element analysis of convective heat and mass transfer flow of a viscous electrically conducting fluid through a porous medium in a rectangular cavity with dissipation.…”

Section: Introductionsupporting

confidence: 58%

Heat and mass transfer in a porous medium filled rectangular duct with Soret and Dufour effects under inclined magnetic field

Chamkha

Mallikarjuna

Vijaya

et al. 2014

International Journal of Numerical Methods for Heat &Amp; Fluid Flow

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Purpose -The purpose of this paper is to study the effects of Soret and Dufour effects on convective heat and mass transfer flow through a porous medium in a rectangular duct in the presence of inclined magnetic field. Design/methodology/approach -Using the non-dimensional variables, the governing equations have been transformed into a set of differential equations, which are non-linear and cannot be solved analytically, therefore finite element method has been used for solving the governing equations. Findings -The influence of thermo-diffusion, diffusion thermo, radiation, dissipation, heat sources and the inclined magnetic field on all the flow, heat and mass transfer characteristics has been found to be significant. Originality/value -The problem is relatively original as it combines many effects as Soret and Dufour effects and chemical reaction under inclined magnetic field.

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Section: Introductionsupporting

confidence: 58%

Heat and mass transfer in a porous medium filled rectangular duct with Soret and Dufour effects under inclined magnetic field

Chamkha

Mallikarjuna

Vijaya

et al. 2014

International Journal of Numerical Methods for Heat &Amp; Fluid Flow

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“…Natural convection heat transfer in a cavity saturated with porous media in the presence of magnetic fields is a new branch of thermo-fluid mechanics. Shehadeh and Duwairi [32] studied MHD natural convective heat transfer in a rectangular enclosure filled with a porous medium, considering Joule and viscous heating effects.…”

Section: Introductionmentioning

confidence: 99%

“…Step 4: Solve the coupled equations for the microrotation and vorticity, Equations (32) and 33, using the updated magnetic field and temperature gradient.…”

mentioning

confidence: 99%

Modeling the Natural Convection Flow in a Square Porous Enclosure Filled with a Micropolar Nanofluid under Magnetohydrodynamic Conditions

et al. 2020

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The laminar, natural convective flow of a micropolar nanofluid in the presence of a magnetic field in a square porous enclosure was studied. The micropolar nanofluid is considered to be an electrically conductive fluid. The governing equations of the flow problem are the conservation of mass, energy, and linear momentum, as well as the angular momentum and the induction equations. In the proposed model, the Darcy–Brinkman momentum equations with buoyancy and advective inertia are used. Experimentally obtained forms of the dynamic viscosity, the thermal conductivity, and the electric conductivity are employed. A meshless point collocation method has been applied to numerically solve the flow and transport equations in their vorticity-stream function formulation. The effects of characteristic dimensionless parameters, such as the Rayleigh and Hartmann numbers, for a range of porosity and solid volume fraction of Al2O3 particles in a water-based micropolar nanofluid on the flow and heat transfer in the cavity are investigated. The results indicate that the intensity of the magnetic field significantly affects both the flow and the temperature distributions. Moreover, the addition of nanoparticles deteriorates the heat-transfer efficiency under specific conditions.

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“…Thus, recent studies investigated this condition in determination of heat transfer rate. Al-Badawi and duwairi [3] and Shehadah and Duwairi [4] studied convection heat transfer in internal flows. in James and Davi [5] studied the flow in the interfacial region of an open porous medium by solving Stokes model for flow in a channel partially filled with an array of circular cylinders beside one wall.…”

Section: Introductionmentioning

confidence: 99%

Darcian Velocity and Temperature Jump Effects on Convection From Vertical Surface Embedded in Porous Media

Al-Khliefat¹,

Duwairi²

2015

IJHT

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In this work the temperature jump effects on convection from vertical plate embedded in porous media using Darcy model has been investigated numerically. The governing equations: continuity, Darcy law and energy were transformed into dimensionless form using a set of suitable variables then solved numerically using a finite difference method. Results obtained were graphically interdicted to illustrate the effects of temperature jump on the near plate fluid velocity, temperature, shear stress, and Nusselt number. It was found that the increasing of temperature jump parameter reduced velocity and heat transfer rates between surface and fluid for both natural and mixed convection. It was also found that the temperature jump does not affect the rate of forced convection heat transfer.

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MHD natural convection in porous media-filled enclosures

Cited by 6 publications

References 6 publications

Heat and mass transfer in a porous medium filled rectangular duct with Soret and Dufour effects under inclined magnetic field

Heat and mass transfer in a porous medium filled rectangular duct with Soret and Dufour effects under inclined magnetic field

Modeling the Natural Convection Flow in a Square Porous Enclosure Filled with a Micropolar Nanofluid under Magnetohydrodynamic Conditions

Darcian Velocity and Temperature Jump Effects on Convection From Vertical Surface Embedded in Porous Media

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