MHD natural convection flow and heat transfer in a laterally heated partitioned enclosure

Kahveci, Kamil; Öztuna, Semiha

doi:10.1016/j.euromechflu.2009.07.001

Cited by 89 publications

(36 citation statements)

References 14 publications

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“…6-9 illustrate the stream functions and isotherm contours for various values of Ra E =10 2 , 10 3 ,10 4 and 10 5 where Ha=20 , Ra I =10 4 and Pr=0.71 is kept fixed with linearly heated bottom wall where the top wall is well insulated the left and right vertical walls are maintained at hot and cold temperature respectively. For the lower external Rayleigh number two convective cells dominate the flow, however with the increase of the external Rayleigh number, primary cell becomes larger and occupies whole domain when Ra E = 10 4 . This behaviour is almost opposite to the effect of the internal Rayleigh number from lower to higher, for a fixed external Rayleigh number.…”

Section: Effects Of External Rayleigh Numbersmentioning

confidence: 99%

“…Nithyadevi et al [7] investigated the natural convection flow under a magnetic field in a square cavity with partially active vertical walls having time periodic boundary condition. Kahveci et al [4] studied magnetohydrodynamic natural convection flow and heat transfer in a laterally heated partitioned enclosure. Sathiyamoorty et al [12] investigated the steady natural convection flow in a square cavity with linearly heated side walls.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Natural Convection Flow Of An Electrically Conducting Fluid In A Rectangular Cavity Having Internal Energy Sources With Linearly Heated Bottom Wall

Obayedullah

Chowdhury

2013

GANIT: J. Bangladesh Math. Soc.

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Natural convection flow in a rectangular cavity containing internally heated and electrically conducting fluid has been investigated numerically. The bottom wall of the cavity is linearly heated whereas the top wall is well insulated. The left and right vertical walls are maintained at constant hot and cold temperature respectively. Results have been obtained with respect to Rayleigh numbers and Hartmann numbers. Flow and temperature fields for these cases have been studied. Average Nusselt numbers at hot, cold and linearly heated bottom wall have been calculated. It is found that the temperature, fluid flow and heat transfer strongly depend on internal and external Rayleigh numbers and Hartmann numbers.

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Section: Effects Of External Rayleigh Numbersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Natural Convection Flow Of An Electrically Conducting Fluid In A Rectangular Cavity Having Internal Energy Sources With Linearly Heated Bottom Wall

Obayedullah

Chowdhury

2013

GANIT: J. Bangladesh Math. Soc.

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“…Oztop et al [8] investigated natural convection in wavy enclosures withvolumetric heat sources. Kahveci and Öztuna [9] studied MHD natural convection flow and heat transfer in a laterally heated partitioned enclosure. Basak et al [10] investigated energy flows due to natural convection within trapezoidal enclosures with hot bottom wall and cold side walls in the presence of insulated top walls.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of MHD Natural Convection in a Rectangular Cavity and Partially Heated Wall

Alam¹,

Mollah²,

Alim³

et al. 2017

EAS

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Abstract:In this paper numerical study is presented of two-dimensional laminar steady-state on megneto-hydrodynamics (MHD) free convection for heat flow patterns within rectangular enclosures. A finite element analysis is performed to investigate the effects of uniform heating and is also used for solving the Navier-Stokes and Energy balance equations. The horizontal bottom wall is divided into three sections. The middle section of the horizontal bottom wall was kept temperature at T h and the other two parts of the horizontal bottom wall were kept thermal insulation while the left and right vertical walls and the top wall of the cavity were maintained constant temperature Tc with T h >T c . Parametric studies of the fluid flow and heat transfer in the enclosure are performed for magnetic parameter Hartmann number (Ha = 0, 50, 100), Rayleigh number (Ra = 10 3 -10 6 ) and Prandtl number Pr=0.71. The streamlines, isotherms, average Nusselt number at the hot wall and velocity profiles and temperature distribution of the fluid in the enclosure are presented for the parameters. The numerical results indicated that the Hartmann number and Rayleigh number have strong influence on the streamlines and isotherms. Also the mentioned parameters have significant effect on average Nusselt number at the hot wall and average temperature of the fluid in the enclosure.

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“…He found that the average Nusselt number increases with the decrease of thermal resistance of the partition, and partition thickness has little effect on heat transfer. The similar geometry was used in his studies under different thermal boundary conditions [12,13]. Ho and Yih [14] performed a numerical analysis on conjugate natural convection in air-filled rectangular cavities.…”

Section: Introductionmentioning

confidence: 99%

Using of Bejan's Heatline Technique for Analysis of Natural Convection in a Divided Cavity with Differentially Changing Conductive Partition

Koca

Öztop

Varol

et al. 2013

Numerical Heat Transfer, Part A: Applications

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MHD natural convection flow and heat transfer in a laterally heated partitioned enclosure

Cited by 89 publications

References 14 publications

Natural Convection Flow Of An Electrically Conducting Fluid In A Rectangular Cavity Having Internal Energy Sources With Linearly Heated Bottom Wall

Natural Convection Flow Of An Electrically Conducting Fluid In A Rectangular Cavity Having Internal Energy Sources With Linearly Heated Bottom Wall

Finite Element Analysis of MHD Natural Convection in a Rectangular Cavity and Partially Heated Wall

Using of Bejan's Heatline Technique for Analysis of Natural Convection in a Divided Cavity with Differentially Changing Conductive Partition

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