Effects of fins on magnetohydrodynamic conjugate natural convection in a nanofluid-saturated porous inclined enclosure

Al‐Farhany, Khaled; Al-Chlaihawi, Kadhim K. Idan; Al‐Dawody, Mohamed F.; Biswas, Nirmalendu; Chamkha, Ali J.

doi:10.1016/j.icheatmasstransfer.2021.105413

Cited by 67 publications

(32 citation statements)

References 52 publications

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“…The flow motion of the fluid within the annulus of the geometry analyzed is delineated using stream function (Ψ) and it is defined from the velocity components U and V as follows 45,46 :…”

Section: Stream Functionmentioning

confidence: 99%

Magnetoconvection around an elliptic cylinder placed in a lid‐driven square enclosure subjected to internal heat generation or absorption

Olayemi

Al‐Farhany

Obalalu³

et al. 2022

Heat Trans

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The impacts of MHD and heat generation/absorption on lid‐driven convective fluid flow occasioned by a lid‐driven square enclosure housing an elliptic cylinder have been investigated numerically. The elliptic cylinder and the horizontal enclosure boundaries were insulated and the left vertical lid‐driven wall was experienced at a fixed hot temperature, and the right wall was exposed to a fixed cold temperature. COMSOL Multiphysics 5.6 software was used to resolve the nondimensional equations governing flow physics. A set of parameters, such as Hartmann number (0 ≤ italicHa ≤ 50 $0\le {Ha}\le 50$), Reynolds number (1 0 2 ≤ italicRe ≤ 1 0 3 $1{0}^{2}\le {Re}\le 1{0}^{3}$), Grashof number (1 0 2 ≤ italicGr ≤ 1 0 5 $1{0}^{2}\le {Gr}\le 1{0}^{5}$), heat generation‐absorption parameter (− 3 ≤ J ≤ 3 $-3\le J\le 3$), and elliptical cylinder aspect ratio (AR) (1.0 ≤ italicAR ≤ 3.0 $1.0\le {AR}\le 3.0$) have been investigated. The current study discovered that for low Reynolds number, the adiabatic cylinder AR of 2.0 provided the optimum heat transfer enhancement for the model investigated, also the impact of cylinder size diminishes beyond Gr = 104. But for high Reynolds (Re = 1000), the size of the cylinder with AR = 3.0 offered the highest heat transfer augmentation. The clockwise flow circulation reduces because of an increase in AR, which hinders the flow circulation. In addition, heat absorption supports heat transfer augmentation while heat generation can suppress heat transfer improvement.

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“…The flow motion of the fluid within the annulus of the geometry analyzed is delineated using stream function (Ψ) and it is defined from the velocity components U and V as follows 45,46 :…”

Section: Stream Functionmentioning

confidence: 99%

Magnetoconvection around an elliptic cylinder placed in a lid‐driven square enclosure subjected to internal heat generation or absorption

Olayemi

Al‐Farhany

Obalalu³

et al. 2022

Heat Trans

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“…[1][2][3][4][5] Nanofluid is used in engines, pharmaceutical processes, fuel cells, and diminutive electrons, among other applications. [6][7][8][9][10] Electronic gadgets and nano-boards are presently significant in the industry. Likewise, nanofluid is a novel kind of energy transfer fluid that consists of suspensions of base liquids.…”

Section: Introductionmentioning

confidence: 99%

“…The nanofluid has a variety of sustainable and creative applications, including materials, electronics, catalysis, smart computers, and more 1–5 . Nanofluid is used in engines, pharmaceutical processes, fuel cells, and diminutive electrons, among other applications 6–10 . Electronic gadgets and nano‐boards are presently significant in the industry.…”

Section: Introductionmentioning

confidence: 99%

Non‐Newtonian nanofluid characteristics over a melting wedge: A numerical study

et al. 2022

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“…In tilted porous cavities with magnetic fields, Al-Farhany et al [ 32 , 33 ] explored the fin positions and their effects on the natural convection of conjugated nanofluids. The data showed that increasing the Darcy number directly with the modified Rayleigh number and fin dimension increased the average Nusselt number.…”

Section: Introductionmentioning

confidence: 99%

The Baffle Length Effects on the Natural Convection in Nanofluid-Filled Square Enclosure with Sinusoidal Temperature

et al. 2022

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The proper process of applying heat to many technological devices is a significant challenge. There are many nanofluids of different sizes used inside the system. The current study combines this potential to improve convection effects, considering numerical simulations of natural convection using Cu/water nanofluids in a square enclosure with bottom blocks embedded in baffles. The enclosure consists of two vertical walls with isothermal boundary conditions; the left wall is the sinusoidal heat source, whereas the right wall is cooled. The investigations dealt with the influences of nanoparticle concentration, Rayleigh number, baffle length, and thermal conductivity ratioon isotherms, stream functions, and average Nusselt number. The results present that, when the Rayleigh number rises, the fluid flow velocity increases, and the heat transfer improves. Furthermore, the baffle length case (Lb = 0.3) provides higher heat transfer characteristics than other baffle height cases.

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Effects of fins on magnetohydrodynamic conjugate natural convection in a nanofluid-saturated porous inclined enclosure

Cited by 67 publications

References 52 publications

Magnetoconvection around an elliptic cylinder placed in a lid‐driven square enclosure subjected to internal heat generation or absorption

Magnetoconvection around an elliptic cylinder placed in a lid‐driven square enclosure subjected to internal heat generation or absorption

Non‐Newtonian nanofluid characteristics over a melting wedge: A numerical study

The Baffle Length Effects on the Natural Convection in Nanofluid-Filled Square Enclosure with Sinusoidal Temperature

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