Numerical investigation on the effect of magnetic field on natural convection heat transfer from a pair of embedded cylinders within a porous enclosure

Bhowmick, Debayan; Chakravarthy, Subhasis; Randive, Pitambar; Pati, Sukumar

doi:10.1007/s10973-020-09411-6

Cited by 20 publications

(3 citation statements)

References 48 publications

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“…Further relevant work is portrayed in Refs. [ [17] , [18] , [19] , [20] , [21] , [22] , [23] , [24] ]. To explore the positional effect of a cylindrical thermal system that undergoes a magneto-thermal convective process on the wall of four quadrants of the cylinder has been taken by Chatterjee et al [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Vortex generation due to multiple localized magnetic fields in the hybrid nanofluid flow – A numerical investigation

Ahmad¹,

Ali²,

Katbar³

et al. 2023

Heliyon

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Section: Introductionmentioning

confidence: 99%

Vortex generation due to multiple localized magnetic fields in the hybrid nanofluid flow – A numerical investigation

Ahmad¹,

Ali²,

Katbar³

et al. 2023

Heliyon

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“…They found that the heat augments with rising distance between the immersed cylinders. In the same way, Alsabery et al [27] investigated the square shaped body effect inside an enclosure for the transfer of heat by considering the two-phase model. Despite its applications, geometries like, U, H, C, and I shape for the natural convective flow have not been widely studied by researchers [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Entropy Optimization and Thermal Behavior of a Porous System With Considering Hybrid Nanofluid

Shah¹,

Ullah²,

Musa

et al. 2022

Front. Phys.

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The aim of this research work is to study the performance of hybrid eclectically conducting nanofluid (MWCNT-Fe3O4) with entropy optimization impacts using the CVFEM approach. 3D and contour plots are two types of outcomes that extend the discrepancy of analyzed variables. The Newtonian liquid is presumed as a testing fluid, and the non-Darcy model is employed to simulate the permeable domain. The geometry has two adiabatic walls and one wavy hot wall with unvarying flux, and the other is kept at a constant temperature. The impact of Brownian motion in the hybrid nanofluid (MWCNT-Fe3O4) is considered. The irreversibility effect is also taken into account. This effect acts against the performance of the system and reduces the efficiency of the system. To solve the final equations with higher accuracy, we utilized the method of CVFEM. The validation of the results obtained through CVFEM is clearly and graphically presented with the available literature. The outputs of the simulation showed that there is an inverse relation between permeability and the Bejan Number, and the boundary layer thickness augments with intensification in Lorentz force. These variations in the form of streamline, isotherm, and various contour plots have been reported at Ra=103 and Ra=105 for different values of Da, Ha, and ϕ.

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“…Finally, the researchers indicated that adding NFs can increase heat transfer (H T ) in the CV. Since in many of the applications mentioned for the CVs the presence of electrical current is inevitable and, as a result, the CVs are exposed to a magnetic field, another case investigated by the researchers [21][22][23][24][25][26][27][28] is CVs under a magnetic field. In these studies, the magnetic field was used in different ways.…”

Section: Introductionmentioning

confidence: 99%

Influence of a membrane on nanofluid heat transfer and irreversibilities inside a cavity with two constant-temperature semicircular sources on the lower wall: applicable to solar collectors

2020

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In this paper, free heat transfer ( ) and the entropy generation ( ) of Alumina/ nanofluid (NF) in an square cavity (CV) are simulated owing to its application in solar collectors. For this purpose, a square CV with an angle γ is placed under a fixed magnetic field. The upper wall has a temperature of Tc and sidewalls are insulated. On the lower wall of the CV, which is also insulated, two half-pipe with a temperature of Th are mounted. In the middle of the CV, there is a partition with a conductivity coefficient. The Control volume method is employed to follow the SIMPLE algorithm for the simulation. The variable parameter included < < The simulation results demonstrated that growing the Rayleigh (Ra) number increased the rate of and while the increase in the Hartmann (Ha) number decreased both these parameters. Furthermore, the addition of nanoparticles (NPs) resulted in more Increasing the thermal conductivity of the partition in strong free convective mode enhanced the while, in poor free convective it reduced the The lowest and occurred in the horizontal CV.

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Numerical investigation on the effect of magnetic field on natural convection heat transfer from a pair of embedded cylinders within a porous enclosure

Cited by 20 publications

References 48 publications

Vortex generation due to multiple localized magnetic fields in the hybrid nanofluid flow – A numerical investigation

Vortex generation due to multiple localized magnetic fields in the hybrid nanofluid flow – A numerical investigation

Entropy Optimization and Thermal Behavior of a Porous System With Considering Hybrid Nanofluid

Influence of a membrane on nanofluid heat transfer and irreversibilities inside a cavity with two constant-temperature semicircular sources on the lower wall: applicable to solar collectors

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