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

Abstract

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.

Numerical Analysis of Heat Transfer Performances of Ionic Liquid and Ionanofluids with Temperature-Dependent Thermophysical Properties

“…The numerical method employed for modeling the flow and heat transfer of ionic liquid and ionanofluids was the finite volume method. The methodology closely follows the one presented in [23,24].…”

“…As it can be seen from the literature overview, the experimental investigations of ionanofluids are rare in comparison to the published experimental investigations of the nanofluids. When it comes to the analyses of ionanofluids by using computational fluid dynamics, to the authors best knowledge there are only few studies available [16][17][18][19][20][21][22][23], whereas Said [24] analyzed the use of adaptive neuro fussy interface systems to predict the thermal conductivity and viscosity of ionanofluids. Computational fluid dynamic analyses of ionanofluids are mainly focused on the heat transfer performances.…”

“…Prasad et al [20] analyzed the heat transfer in a 2-D flat plate, whereas Rupesh et al [21] analyzed the heat transfer performance of ionanofluids around a circular cylinder. The most recent numerical investigations of the heat transfer behavior of particle suspension in ionic liquids were done by Shah et al [22] and Bouchta et al [23].…”