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Comparative heat transfer performance of hydromagnetic mixed convective flow of cobalt-water and cobalt-kerosene ferro-nanofluids in a porous rectangular cavity with shape effects
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Comparative heat transfer performance of hydromagnetic mixed convective flow of cobalt-water and cobalt-kerosene ferro-nanofluids in a porous rectangular cavity with shape effects
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Journal Article
Comparative heat transfer performance of hydromagnetic mixed convective flow of cobalt-water and cobalt-kerosene ferro-nanofluids in a porous rectangular cavity with shape effects
2023
Overview
A numerical investigation of hydromagnetic mixed convective heat transfer and fluid flow in a porous rectangular enclosure filled with water and kerosene-based ferro-nanofluids is presented in this study. This research incorporates nanoscale ferromagnetic cobalt particles. The right wall is adiabatic, the top and bottom walls are cold, and a hot slit is positioned in the centre of the left adiabatic wall. The dimensionless governing equations are numerically solved using the Marker-And-Cell (MAC) technique. The effects of uniform inclined magnetic field, inclination angle of the cavity, and internal heat generation/absorption are investigated. The effects of various relevant parameters such as Richardson number (
Ri
), Reynolds number (
Re
), Darcy number (
Da
), Hartmann number (
Ha
), internal heat generation/absorption coefficient (
Q
), magnetic field’s inclination angle
(
∅
)
and cavity’s inclination angle
(
ω
)
on the streamlines, isotherms, and local and average heat transfer rates have been graphically displayed. Spherical and non-spherical nanoparticles such as blades, platelets, cylinders, and bricks are dispersed in base fluids to study the fluid flow and heat transfer inside the enclosure, and the findings are visualized. Heat transmission improves with porous medium permeability, nanoparticles’ volume fraction, magnetic flux, and heat absorption/generation impacts. Compared to water, kerosene improves the mean heat transfer rate by
71
%
when
5
%
cobalt ferro-nanoparticles are added to the base fluid. Compared to the cobalt-water ferro-nanofluid which is prepared by suspending the spherical-shaped cobalt nanoparticles, the ferro-nanofluid prepared by suspending the blade-shaped cobalt nanoparticles increase the mean heat transmission rate by
16.47
%
.
Graphical abstract
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
Subject
