Study of local natural convection heat transfer in an inclined enclosure

Hamady, Fakhri J.; Lloyd, John R.; Yang, He; Yang, K. T.

doi:10.1016/0017-9310(89)90052-5

Cited by 70 publications

(37 citation statements)

References 18 publications

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“…(ii) Natural convection in a heated from below square cavity. Results given in Table 1 show that the Nusselt number and the maximum stream function obtained for different Rayleigh numbers in the present study are in good agreement with those predicted in the works of Lakhal and Hasnaoui [11], Strada and Heinrich [12] and Hamady et al [13].…”

Section: Validation Of the Calculation Codesupporting

confidence: 94%

“…The dimensionless time used in the simulation is 10 −5 . The convergence criterion is based Table 1 Comparison of results of the present work with those of Lakhal and Hasnaoui [11], Strada and Heinrich [12] and Hamady et al [13] in the case of a square cell heated from below - Table 2 Dimensions of the studied hollow blocks Table 3 Adopted grids for each studied type of hollow block Aspect ratio Grid Grid in each cavity…”

Section: Parameters Of the Simulationmentioning

confidence: 98%

“…The problems where the hollow structures are heated from below are not well documented. Most of the available works studied the natural convection in rectangular cavities heated partially [10] or entirely [11][12][13] from below.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Numerical simulation of coupled heat transfers by conduction, natural convection and radiation in hollow structures heated from below or above

Ait-Taleb

Abdelbaki

Zrikem

2008

International Journal of Thermal Sciences

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Section: Validation Of the Calculation Codesupporting

confidence: 94%

Section: Parameters Of the Simulationmentioning

confidence: 98%

See 1 more Smart Citation

Numerical simulation of coupled heat transfers by conduction, natural convection and radiation in hollow structures heated from below or above

Ait-Taleb

Abdelbaki

Zrikem

2008

International Journal of Thermal Sciences

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“…Theoretical analysis can be made easier in the rotational frame of reference, in that the relative importance of the various forces can be directly compared so that a qualitative flow structure can be predicted. The transformation of the equations from an inertial frame to a rotational frame can be made by relating the velocity vectors in the different frames (Hamady, 1987),…”

Section: Formulations and Limiting Analysismentioning

confidence: 99%

Rotational effects on natural convection in a horizontal cylinder

Yang

Lloyd

1988

AIChE Journal

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A numerical computation is carried out to study the interaction of rotation and natural convection inside a finite horizontal cylinder. The natural convection is due to differential heating on the two ends, while the rotation is along the axis of the horizontal cylinder. The aspect ratio, length of the cylinder to its radius, is 2.0. The Grashof number is fixed at 1.43 x 10' with air as a working fluid. The effect of rotation is examined with Gr/Re2 from 7.0 x IO-'to CO, which covers the range from rotation dominated flow to buoyancy dominated flow. It is found that when rotational speed is relatively small or Gr/Re* >> 1, the effect of rotation is t o render the spatial heat flux distribution more uniform. As the rotational speed increases, the heat transfer rate distribution on'the end surfaces is more homogenous and its level is also reduced. When the rotational speed is sufficiently high (Gr/Re' << l.O), heat transfer is by conduction only and the whole fluid inside the enclosure rotates as a rigid body. It is shown that there exists a rotation speed range in which one can have both relatively high and uniform heat transfer rates on the end walls.

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“…Many numerical or experimental papers on natural convection in vertical or inclined rectangular cavities are available in the literature [9][10][11][12][13][14][15][16][17]. An accurate benchmark solution for free convection of air (Pr = 0.71) in a square cavity with vertical boundaries kept at different temperatures is presented in [12], with reference to 10 3 < Ra < 10 6 .…”

Section: Introductionmentioning

confidence: 99%