Natural convection in partially cooled and inclined porous rectangular enclosures

Öztop, Hakan F.

doi:10.1016/j.ijthermalsci.2006.04.009

Cited by 78 publications

(31 citation statements)

References 29 publications

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“…Modified version according to present study of the general purpose of SAINTS (software for arbitrary integration of Navier-Stokes equation with turbulence and porous media simulator) computer code, proposed by Nakayama [17], is used. Patankar's SIMPLE solution algorithm by Patankar [18] is used in the code [19]. A hybrid of the central difference and upwind schemes was used for the convective and diffusive terms.…”

Section: Calculation Of Local and Average Nusselt Numbers Arementioning

confidence: 99%

Numerical simulation of magnetohydrodynamic buoyancy-induced flow in a non-isothermally heated square enclosure

Öztop

Oztop

Varol

2009

Communications in Nonlinear Science and Numerical Simulation

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Section: Calculation Of Local and Average Nusselt Numbers Arementioning

confidence: 99%

Numerical simulation of magnetohydrodynamic buoyancy-induced flow in a non-isothermally heated square enclosure

Öztop

Oztop

Varol

2009

Communications in Nonlinear Science and Numerical Simulation

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“…They found that increasing the magnetic forces would decrease the velocities and heat transfer rates to the conductive fluids. Duwairi and AlKablawi [8] formulated the MHD-conjugative heat transfer problem from the vertical surfaces embedded in saturated porous media and achieved the inclusion of conduction parameters to the MHD traditional mixed convection problem.Öztop [9] studied the effect of the natural convection heat transfer on a partially cooled and inclined rectangular enclosure filled with saturated porous media. In all the previous studies, the MHD effects for externally flow are investigated either for fluid flow in a plain or a porous media, but little attention is given to the internal flow heat transfer problem due to the complexities in solving for the pressure gradients inside different conduits.…”

Section: Introductionmentioning

confidence: 99%

MHD natural convection in porous media-filled enclosures

Shehadeh

Duwairi

2009

Appl. Math. Mech.-Engl. Ed.

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In this work, the magnetohydrodynamics (MHD) natural convection heat transfer problem inside a porous medium filled with inclined rectangular enclosures is investigated numerically. The boundary conditions selected on the enclosure are two adiabatic and two isothermal walls. The governing equations, continuity, and Forchheimer extension of the Darcy law and energy are transformed into dimensionless forms by using a set of suitable variables, and then solved by using a finite difference scheme. The governing parameters are the magnetic influence number, the Darcy Rayleigh number, the inclination angle, and the aspect ratio of the enclosure. It is found that the magnetic influence number and the inclination angle have pronounced effects on the fluid flow and heat transfer in porous media-filled enclosures.

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“…Recently, many investigations undertaken on natural convection in enclosures filled with porous media [1][2][3][4][5][6][7]. On the other hand, the conjugate heat convection in enclosures filled with porous medium has evoked much interest by many researchers due to its various practical applications such as cold storage installations and high performance insulation for buildings.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of conjugate natural convection heat transfer in a square porous cavity heated partially from left sidewall

Al‐Farhany¹,

Abdulkadhim²

2018

IJHT

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The conjugate natural convection heat transfer in a partially heated square porous enclosure had been studied numerically. The governing dimensionless equations are solved using COMSOL Multiphysics and Darcy model assumed to be used. The considering dimensionless parameters are modified Rayleigh number, finite wall thickness, thermal conductivity ratio and the heat source length. The results are presented in terms of streamlines, isotherms and local and average Nusselt number. The results indicate that; the heat transfer can be enhanced by increasing the modified Rayleigh number. When the heat source length increases, the local Nusselt number of fluid phase increases, while, a reverse behavior of the local Nusselt number along the heat source is found. As the Rayleigh number increase, the local Nusselt number for both fluid and solid phase increases, therefore, the heat transfer rate will be enhanced. On the other hand, when the thermal conductivity ratio increase, the local Nusselt number for the fluid phase increases, and the local Nusselt number along the heated wall decreases.

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Natural convection in partially cooled and inclined porous rectangular enclosures

Cited by 78 publications

References 29 publications

Numerical simulation of magnetohydrodynamic buoyancy-induced flow in a non-isothermally heated square enclosure

Numerical simulation of magnetohydrodynamic buoyancy-induced flow in a non-isothermally heated square enclosure

MHD natural convection in porous media-filled enclosures

Numerical investigation of conjugate natural convection heat transfer in a square porous cavity heated partially from left sidewall

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