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

Alsabery, Ammar I.; Chamkha, Ali J.; Saleh, Habibis; Hashim, Ishak

doi:10.1038/s41598-017-02241-x

Cited by 87 publications

(30 citation statements)

References 35 publications

(38 reference statements)

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“…Alsabery et al . 1 demonstrated nanoparticletransportation in a tilted porous cavity. They indicated that convective flow is significantly influenced by the permeable layer augmentation.…”

Section: Introductionmentioning

confidence: 99%

Non-equilibrium Model for Nanofluid Free Convection Inside a Porous Cavity Considering Lorentz Forces

Sheikholeslami

Khan

Tlili

2018

Sci Rep

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In current article, transportation of CuO nanoparticles through a porous enclosure is demonstrated. The enclosure has complex shaped hot wall. Porous media has been simulated via two temperature equations. Magnetic force impact on nanofluid treatment was considered. Control volume based finite element method has been described to solve current article in vorticity stream function form. Single phase model was chosen for nanofluid. Nanofluid characteristics are predicted via KKL model. Roles of solid-nanofluid interface heat transfer parameter (Nhs), porosity, Hartmann and Rayleigh numbers have been illustrated. Outputs illustrated that conduction mode reduces with augment of Ra. Increasing magnetic forces make nanofluid motion to decrease. Temperature gradient of nanofluid decreases with augment of Nhs. Reducing porosity leads to enhance in Nusselt number.

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“…Alsabery et al . 1 demonstrated nanoparticletransportation in a tilted porous cavity. They indicated that convective flow is significantly influenced by the permeable layer augmentation.…”

Section: Introductionmentioning

confidence: 99%

Non-equilibrium Model for Nanofluid Free Convection Inside a Porous Cavity Considering Lorentz Forces

Sheikholeslami

Khan

Tlili

2018

Sci Rep

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“…[24][25][26] Through numerical predictions it has been observed that thermal dissipation enrichment in an enclosure predominantly depends on the choice of nanoparticle as well as the thermal conditions. [27][28][29] Roy 30 examined nanofluid buoyant motion in the annular section between a square geometry and three distinct interior geometries, such as circular or elliptical or rectangular cylinder and found the inner shapes has profound impacts on thermal dissipation rates compared to a square geometry. Using combined Lagrangian and Eulerian modeling, Sharaf et al 31 investigated the convective motion and nanoparticle dissemination in a microchannel formed by parallel plates and brought out inaccuracies in the existing nanofluid model.…”

Section: Introductionmentioning

confidence: 99%

Conjugate Buoyant Convective Transport of Different Nanofluids in An Enclosed Annular Geometry

Sankar¹,

Reddy²,

Do³

2021

Preprint

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A vertical annular configuration with differently heated cylindrical surfaces and horizontal adiabatic boundaries is extensively studied due to many industrial applications. In this paper, we investigate the effects of conjugate buoyant heat transport within water based nanofluid with different nanoparticles such as alumina, titanium oxide or copper, which is contained in the gap of the enclosed annulus. The enclosed annulus is constituted by a thick inner cylinder with a constant high temperature, an exterior boundary with a constant low temperature and thermally insulated upper and lower surfaces. By investigating heat transport for broad spectrum of Rayleigh number, solid wall thickness, thermal conductivity ratio and nanoparticle volume fraction, we found that the influence of wall thickness on thermal dissipation rate along wall and interface greatly depend on conductivity ratio and vice-versa. In particular, we uncover that the choice of nanoparticle in a nanofluid and its concentration are key factors in enhancing the thermal transport along the interface. Specially, copper based nanofluids produces higher heat transport among other nanoparticles, and increasing nanoparticle concentration leads to enhanced thermal dissipation along interface. Our results are applicable to choose nanofluids along with other critical parameters for the desired heat transport.

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“…Sheikholeslami et al 7 probed the Coulomb force influence on the heat transfer of a nanofluid. Alsabery et al 8 presented the nanofluid flow in an inclined enclosure with a porous medium. Sheikholeslami 9 probed the flow of nanofluid in porous media.…”

Section: Introductionmentioning

confidence: 99%

Chemically reactive MHD micropolar nanofluid flow with velocity slips and variable heat source/sink

Dawar

Shah

Kumam

et al. 2020

Sci Rep

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The two-dimensional electrically conducting magnetohydrodynamic flow of micropolar nanofluid over an extending surface with chemical reaction and secondary slips conditions is deliberated in this article. The flow of nanofluid is treated with heat source/sink and nonlinear thermal radiation impacts. The system of equations is solved analytically and numerically. Both analytical and numerical approaches are compared with the help of figures and tables. In order to improve the validity of the solutions and the method convergence, a descriptive demonstration of residual errors for various factors is presented. Also the convergence of an analytical approach is shown. The impacts of relevance parameters on velocity, micro-rotation, thermal, and concentration fields for first- and second-order velocity slips are accessible through figures. The velocity field heightens with the rise in micropolar, micro-rotation, and primary order velocity parameters, while other parameters have reducing impact on the velocity field. The micro-rotation field reduces with micro-rotation, secondary order velocity slip, and micropolar parameters but escalates with the primary order velocity slip parameter. The thermal field heightens with escalating non-uniform heat sink/source, Biot number, temperature ratio factor, and thermal radiation factor. The concentration field escalates with the increasing Biot number, while reduces with heightening chemical reaction and Schmidt number. The assessment of skin factor, thermal transfer, and mass transfer are calculated through tables.

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

Cited by 87 publications

References 35 publications

Non-equilibrium Model for Nanofluid Free Convection Inside a Porous Cavity Considering Lorentz Forces

Non-equilibrium Model for Nanofluid Free Convection Inside a Porous Cavity Considering Lorentz Forces

Conjugate Buoyant Convective Transport of Different Nanofluids in An Enclosed Annular Geometry

Chemically reactive MHD micropolar nanofluid flow with velocity slips and variable heat source/sink

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