Natural convection in an inclined rectangular enclosure filled by CuO–H2O nanofluid, with sinusoidal temperature distribution

Bouhalleb, Mefteh; Abbassi, Hassan

doi:10.1016/j.ijhydene.2015.04.090

Cited by 48 publications

(12 citation statements)

References 28 publications

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“…Kefayati [56] studied the effect of magnetic field on natural convection of non-Newtonian power-law fluids in a square cavity with a sinusoidal heated right sidewall using the finite difference lattice Boltzmann method (FDLBM). Very recently, Bouhalleb and Abbassi [57] numerically investigated natural convection in an inclined rectangular cavity filled by nanofluid with a sinusoidal temperature distribution on the right sidewall using the finite volume element method. However, the study of transient natural convective heat transfer in a trapezoidal cavity filled with non-Newtonian nanofluid and heated by sinusoidal temperature distributions on both sidewalls has not yet been undertaken.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Transient natural convective heat transfer in a trapezoidal cavity filled with non-Newtonian nanofluid with sinusoidal boundary conditions on both sidewalls

et al. 2017

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Section: Accepted Manuscriptmentioning

confidence: 99%

Transient natural convective heat transfer in a trapezoidal cavity filled with non-Newtonian nanofluid with sinusoidal boundary conditions on both sidewalls

et al. 2017

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“… 36 analyzed the free convection flow of a nanofluid in a square enclosure heated by a variable temperature field within the bottom horizontal wall. Bouhalleb and Abbassi 37 employed the finite-volume element technique to solve the problem of free convective flow of a nanofluid in an inclined rectangular enclosure with a sinusoidal thermal condition on right vertical boundary. However, the subject of free convective fluid and heat flow in an enclosure partially saturated porous media with sinusoidally heating temperatures on the walls has not been considered yet.…”

Section: Introductionmentioning

confidence: 99%

Natural Convection Flow of a Nanofluid in an Inclined Square Enclosure Partially Filled with a Porous Medium

Alsabery

Chamkha

Saleh

et al. 2017

Sci Rep

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This work analyses free convection flow of a nanofluid in an inclined square enclosure consisting of a porous layer and a nanofluid layer using the finite difference methodology. Sinusoidal temperature boundary conditions are imposed on the two opposing vertical walls. Nanofluids with water as base and Ag or Cu or Al2O3 or TiO2 nanoparticles are considered for the problem. The related parameters of this study are the Darcy number, nanoparticle volume fraction, phase deviation, amplitude ratio, porous layer thickness and the inclination angle of the cavity. A comparison with previously published work is performed and the results are in good agreement. Detailed numerical data for the fluid flow and thermal distributions inside the square enclosure, and the Nusselt numbers are presented. The obtained results show that the heat transfer is considerably affected by the porous layer increment. Several nanoparticles depicted a diversity improvement on the convection heat transfer.

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“…[60], Sarris et al [61][62], Bouhalleb and Abbassi [63] used variable heated bottom wall with a motivation to understand the heat transfer characteristics in glass melting tank, where a number of burners placed above the glass tank give rise to periodic temperature profiles on the surface of the glass melt. The condition of sinusoidal heated bottom wall is also reported by Minkowyez [64].…”

Section: Mathematical Formulationsmentioning

confidence: 99%

Numerical simulation of MHD flow of micropolar fluid inside a porous inclined cavity with uniform and non-uniform heated bottom wall

2018

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Buoyancy-driven, incompressible, two-dimensional flow of a micropolar fluid inside an inclined porous cavity in the presence of magnetic field is investigated. The nonlinear partial differential equations are solved by employing a robust Galerkin finite element scheme. The pressure term in this scheme is eliminated by using the penalty method. The results are exhibited in the form of streamlines, isotherms, and local and average Nusselt numbers for two cases, namely, the constant and the sinusoidal heated lower wall of the conduit. In both cases, the side walls of the cavity are cold and the upper side is insulated. The main difference between the two cases is observed from temperature contours. For constant heated bottom wall a finite discontinuity appears in the temperature distribution at the corners of the bottom wall. In contrast, no such discontinuity appears in the temperature distribution for non-uniform heated bottom wall. The quantitative changes in temperature contours in different portions of the cavity are identified by comparing the results for both cases. The code is also validated and benchmarked with the previous numerical data available in the literature. It is found that the magnetic field inclined at a certain angle either suppresses or enhances the intensity of primary circulations depending on the inclination of the cavity. Further, the average Nusselt number at the bottom wall is higher when magnetic field is applied vertically irrespective of the inclination of cavity. The analysis presented here has potential application in solar collectors and porous heat exchangers.

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Natural convection in an inclined rectangular enclosure filled by CuO–H2O nanofluid, with sinusoidal temperature distribution

Cited by 48 publications

References 28 publications

Transient natural convective heat transfer in a trapezoidal cavity filled with non-Newtonian nanofluid with sinusoidal boundary conditions on both sidewalls

Transient natural convective heat transfer in a trapezoidal cavity filled with non-Newtonian nanofluid with sinusoidal boundary conditions on both sidewalls

Natural Convection Flow of a Nanofluid in an Inclined Square Enclosure Partially Filled with a Porous Medium

Numerical simulation of MHD flow of micropolar fluid inside a porous inclined cavity with uniform and non-uniform heated bottom wall

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