Numerical Simulation of Free Convection in a Three-Dimensional Enclosure Full of Nanofluid with the Existence a Magnetic Field

A numerical analysis was performed to study free convection in a stationary laminar regime in a partially heated cube filled with ionanofluid. To numerically solve the dimensionless equations, we applied the finite volume method using the SIMPLEC algorithm for pressure correction. All walls are adiabatic, except for the left and right side walls which are partially heated differently. At the end of this simulation, several results are given in the form of current lines, isotherms, and variations in the Nusselt number. These results are obtained by analyzing the effect of a set of factors such as Rayleigh number, particle volume fraction, cold and source position on the dynamic and thermal fields, and heat transfer. It has been shown that the percentage of nanoparticles and high Rayleigh numbers significantly increase heat transfer by ionanofluid. Two comparisons have been made, between ionic fluid and ionanofluid at isotherms and streamlines, and between nanofluid and ionanofluid at Nusselt number, which show the advantage of using ionanofluid in heat transfer.

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Numerical Simulation of Free Convection in a Partially Heated Three-Dimensional Enclosure Filled with Ionanofluid ([C4mim][NTf2]-Cu)

Bouchta

Feddaoui

Dayf

2021

Mathematical Problems in Engineering

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Numerical study of the free convection of a hybrid nano-fluid filling a three-dimensional cavity exposed to a horizontal magnetic field

Benshab,

Bouchta,

FEDDAOUI

et al. 2024

Preprint

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This work presents a numerical study of the effect of a horizontal magnetic field on free convection inside a three-dimensional enclosure filled with a hybrid nanofluid. The transport equations are discretized by the finite volume method. The SIMPLEC algorithm was used to couple the velocity and pressure fields. The vertical walls are heated differently and the horizontal walls are assumed to be adiabatic. The effects of Rayleigh number, volumetric fraction of particles and Hartmann number are studied. The results are given in the form of isotherms, streamlines and Nusselt numbers. It has been shown that for low Hartmann numbers the heat transfer intensifies with an increasing percentage of particles and a higher Rayleigh number. In addition, for low Hartmann numbers, it has been shown that the heat transfer intensifies with an increasing percentage of particles and a higher Rayleigh number. In return, for high Hartmann numbers, heat transfer decreases under the influence of the magnetic field.

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Numerical Simulation of Free Convection in a Three-Dimensional Enclosure Full of Nanofluid with the Existence a Magnetic Field

Cited by 2 publications

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Numerical Simulation of Free Convection in a Partially Heated Three-Dimensional Enclosure Filled with Ionanofluid ([C4mim][NTf2]-Cu)

Numerical Simulation of Free Convection in a Partially Heated Three-Dimensional Enclosure Filled with Ionanofluid ([C4mim][NTf2]-Cu)

Numerical study of the free convection of a hybrid nano-fluid filling a three-dimensional cavity exposed to a horizontal magnetic field

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