Radiation—natural convection heat transfer in an inclined rectangular enclosure

Bouali, Hicham; Mezrhab, Ahmed; Amaoui, H.; Bouzidi, M.

doi:10.1016/j.ijthermalsci.2005.10.001

Cited by 67 publications

(30 citation statements)

References 26 publications

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“…In the cases of an empty cavity and a rectangular cavity with a solid block inside, the results that we obtain with our simulation technique were checked for accuracy against the earlier published numerical and experimental results reported by different authors, and the agreement between the present and previous results was very good (see [5,11]). It was concluded that the largest discrepancies between our and published results can be estimated to be less than 1%.…”

Section: Resultssupporting

confidence: 59%

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Computation of surface radiation and natural convection in a heated horticultural greenhouse

Mezrhab¹,

Farh²,

Naji

et al. 2010

Applied Energy

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Section: Resultssupporting

confidence: 59%

“…(12)) is solved by a direct method (Gauss elimination). Note that the mathematical model developed has been used to investigate the combined natural convection and radiation heat transfer in a divided enclosure (see [5,11]). A preliminary study was carried out to determine the optimum non-uniform grid (i.e.…”

Section: Numerical Proceduresmentioning

confidence: 99%

Computation of surface radiation and natural convection in a heated horticultural greenhouse

Mezrhab¹,

Farh²,

Naji

et al. 2010

Applied Energy

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“…Studies on combined natural convection and surface radiation from a heated body inside a cavity are more scarse (for an overview of recent references, see Bouali et al [30], Lauriat and Desrayaud [31], Mezrhab et al [32]). In the paper by Mezrhab et al [32], a differentiallyheated cavity of square cross-section containing a conducting, centered square body was numerically investigated.…”

Section: Coupled Natural Convection and Surface Radiation In Cavitiesmentioning

confidence: 99%

Effect of surface radiation on natural convective flows and onset of flow reversal in asymmetrically heated vertical channels

Bousetta

Chénier

et al. 2013

International Journal of Thermal Sciences

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To cite this version:R. Li, M. Bousetta, Eric Chénier, Guy Lauriat. Effect of surface radiation on natural convective flows and onset of flow reversal in asymmetrically heated vertical channels. International Journal of Thermal Sciences, Elsevier, 2013, 65 (-), pp.9-27. <10.1016/j.ijthermalsci.2012.10.023>. Effect of surface radiation on natural convective flows and onset of flow reversal in asymmetrically heated vertical channels AbstractNumerical solutions on the influence of surface radiation on the laminar air flow induced by natural convection in vertical, asymmetrically-heated channels are discussed. Variable property effects are accounted for in a full-elliptic mathematical formulation. The density variation is determined from the state equation for ideal gas. The experimental design and data reported in Webb and Hill [1] are taken as the base cases for carrying out the computations. The occurrence of flow reversals is first considered and revisited for pure natural convection, and the Nusselt number correlations derived from the numerical results are favorably compared with those reported in [1]. It is shown that the general effect of surface radiation is to delete the onset of pocketlike recirculations at the top part of the channel, to reduce the heated wall temperatures, and to increase the facing wall temperatures. Comparisons with usual methods used for decoupling the surface radiation effects are discussed. In the range of parameters investigated, increases in differences between inlet and maximum wall temperatures up to 200 K are shown to have small influences on the flow field and negligible effects on heat transfer performances.Keywords: Natural convection, surface radiation, vertical channels, flow reversal, variable property effects, numerical simulations order of consistency of the numerical scheme β thermal coefficient of volumetric expansion,

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“…Bataller (2008a;2008b) analyzed the effects of thermal radiation on the laminar boundary layer adjacent to a flat plate in a uniform stream of fluid (Blasius flow) and also on a moving plate in a quiescent ambient fluid (Sakiadis flow) under convective-radiative surface boundary conditions. Also, many studies on laminar and turbulent natural convection heat transfer coupled with radiation heat transfer in the presence of a radiative surface and/or participating medium in an enclosure have been published (Xamán et al, 2008;Moghadassian and Kowsary, 2014;Bouali et al, 2006). Thermal radiation effect in natural convection for a cylinder has been investigated by a number of researchers.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Combined Natural Convection and Radiation Heat Transfer Using a Similarity Solution

Zeyghami¹,

Rahman²

2015

Energy Research Journal

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A similarity solution for laminar boundary layer in a buoyancy induced flow over an isothermal, vertical wall in the presence of radiation is developed. Radiation heat transfer is taken into account by application of the Rosseland approximation in the energy conservation equation. The family of similarity solutions to the governing equations is presented. The computed results show that thermal and momentum boundary layer thickness values are increased as a result of radiation heat transfer. Furthermore for higher values of the radiation parameter, the maximum velocity inside the boundary layer increases.

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Radiation—natural convection heat transfer in an inclined rectangular enclosure

Cited by 67 publications

References 26 publications

Computation of surface radiation and natural convection in a heated horticultural greenhouse

Computation of surface radiation and natural convection in a heated horticultural greenhouse

Effect of surface radiation on natural convective flows and onset of flow reversal in asymmetrically heated vertical channels

Analysis of Combined Natural Convection and Radiation Heat Transfer Using a Similarity Solution

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