Numerical simulation of double-diffusive natural convective flow in an inclined rectangular enclosure in the presence of magnetic field and heat source

Teamah, Mohamed A.; Elsafty, Ahmed F.; Massoud, Enass Z.

doi:10.1016/j.ijthermalsci.2011.09.006

Cited by 73 publications

(18 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Related studies can be found in, for example, Mahmud and Fraser [1], Revnic et al [5], Garandet et al [30], Alchaar et al [31], Chamkha and Al-Naser [32], Ece and Buyuk [33], Saleh and Hashim [24], Teamah et al [34], and Grosan et al [35]. Mahmud and Fraser [1] studied magnetohydrodynamic-free convection and entropy generation in a square porous cavity with heating from side and adiabatic horizontal walls.…”

Section: Introductionmentioning

confidence: 99%

“…They found that increases in the value of magnetic force have a tendency to retard the fluid motion inside the cavity, and the entropy generation rate is decreased in magnitude as the magnetic force is introduced and strengthened. Teamah et al [34] discussed double-diffusive natural convection in an inclined rectangular enclosure in the presence of magnetic field with heating and salting from side. Grosan et al [35] discussed the steady magnetohydrodynamics-free convection in a fluidsaturated porous medium with internal heat generation with an inclined magnetic field.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Magnetic Field Effect on Natural Convection in a Porous Cavity Heating from below and Salting from Side

Altawallbeh

Saeid

Hashim

2013

Advances in Mechanical Engineering

View full text Add to dashboard Cite

The effect of magnetic field on double-diffusive natural convection in a square cavity filled with a fluid-saturated porous medium is studied numerically. The bottom wall is fully heated at a constant temperature, and the top wall is maintained at a constant cold temperature. The right wall is fully salted to a high concentration, while the left wall is fully salted at a lower concentration than the right one. A magnetic force is applied on the cavity along the gravity force direction. The Darcy model is used for the mathematical formulation of the fluid flow through porous media. The governing equations for heat and mass transfer are solved using the finite volume method. The governing parameters of the present study are Rayleigh number (Ra), Lewis number (Le), buoyancy ratio (N), and Hartmann number (Ha). The numerical solutions were studied in the range of −10 ≤ ≤ 10, 0 ≤ Ha ≤ 10, 50 ≤ Ra ≤ 500, and 10 −4 ≤ Le ≤ 10. The results were discussed considering the effect of these parameters on the heat and mass transfer processes. The results were presented in terms of streamlines, isotherms, isoconcentration, average Nusselt number, and average Sherwood number for different values of the governing parameters. In general, it has been found that the increase of magnetic force has an effect to retard the strength of the flow inside the cavity and reduce the heat and mass transfer processes. For high Hartmann number, the flow is almost suppressed.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Magnetic Field Effect on Natural Convection in a Porous Cavity Heating from below and Salting from Side

Altawallbeh

Saeid

Hashim

2013

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

“…Hillal M et al (2015) and M. Sheikholeslami et al (2014) have studied the natural convection heat transfer in an enclosures with magnetic field. Teamah et al (2012) carried out the numerical investigation of double-diffusive convective flow in a shortest insulated walls on inclined rectangular cavity under the uniform magnetic field. The numerical results are presented under the influence of Rayleigh number on streamlines, isotherms and concentration contours, discussed the presented results are various parametric conditions.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modelling of MHD Double – Diffusive Natural Convection Flow in a Square Enclosure

Venkatadri¹,

Mohiddin²,

Reddy³

2017

Frontiers in Heat and Mass Transfer

View full text Add to dashboard Cite

Two-dimensional unsteady laminar double-diffusive free convective flow of a conducting fluid in a thermally insulated square enclosure except the left wall has been numerically studied in presence of heat generation/absorption. The Marker and Cell (MAC) method is employed for solving nonlinear momentum, energy and concentration equations and the numerical MATLAB code is validated with the previous study. The computed results are depicted graphically and discussed for various values of Rayleigh number (Ra), Hartmann number (Ha), Buoyancy ratio parameter (N), Lewis number (Le) and heat absorption/generation parameter (γ). It is observed that the rate of heat and mass transfer decreases with increasing Rayleigh number.

show abstract

“…Koca et al [9] analyzed the effect of Prandtl number on natural convection in triangular enclosures with localized heating from below. Teamah et al [10] studied numerical simulation of double diffusive natural convective flow in an inclined rectangular enclosure in the presence of magnetic field and heat source. Xu et al [11] investigated numerical simulation of double diffusive mixed convection in an open enclosure with different cylinder locations.…”

Section: Introductionmentioning

confidence: 99%

Prandtl Number Effect of Mixed Convection Heat and Mass Transfer in a Triangular Enclosure with Heated Circular Obstacle

Ferdousi¹,

Alim²,

Chowdhury³

2016

IJEPE

View full text Add to dashboard Cite

Abstract:The effect of Prandtl number of mixed convection heat and mass transfer in a triangular enclosure with heated and concentrated circular obstacle is analyzed by solving mass, momentum, energy and concentration balance equations. The left lower middle and right upper middle walls are kept at low temperature and concentration. All others wall are assumed to be adiabatic. The lower wall is moving in the +x direction and all others walls are maintained at no-slip condition. Moreover, Galerkin Weighted Residuals finite element method is applied to solve the governing equations. The study is performed for different values of Prandtl number, Richardson number and buoyancy ratio. A simple transformation is employed to transfer the governing equations into a dimensionless form. The result shows that at high Pr heat transfer rate increase rapidly and at low Pr it increases linearly with the increase of Ri. However, buoyancy ratio and Lewis number plays an important role for the flow, temperature and concentration fields.

show abstract

Numerical simulation of double-diffusive natural convective flow in an inclined rectangular enclosure in the presence of magnetic field and heat source

Cited by 73 publications

References 31 publications

Magnetic Field Effect on Natural Convection in a Porous Cavity Heating from below and Salting from Side

Magnetic Field Effect on Natural Convection in a Porous Cavity Heating from below and Salting from Side

Mathematical Modelling of MHD Double – Diffusive Natural Convection Flow in a Square Enclosure

Prandtl Number Effect of Mixed Convection Heat and Mass Transfer in a Triangular Enclosure with Heated Circular Obstacle

Contact Info

Product

Resources

About