Heat Transportation in Copper Oxide-Water Nanofluid Filled Triangular Cavities

Abstract

This paper performs a comparative analysis of two-dimensional transient water-copper oxide nanofluid flow and heat transportation inside a right-, acute-and obtuse-angled triangular cavity in the presence of a magnetic field. The vertical and inclined walls of the enclosure are maintained at a constant low temperature whereas the base wall is heated by a uniform thermal condition. The finite element method is used to solve the principal equations of nanofluid within the cavities along with the wall conditions. The outcomes of the present problem for a specific case are verified by the standard published numerical results. For comparative analysis, the isotherms, streamlines, the heat transfer distribution, the average heat transfer rate on the heated wall and within the cavities for the several pertinent parameters of the problem are demonstrated. The result shows that the nanofluid filled obtuse-angled triangular cavity exhibits a higher heat transfer rate for the lower and moderate values of the thermal Rayleigh number whereas for the higher thermal Rayleigh number acute-angled triangular cavity shows better heat transfer performance than that of the other two cases analyzed in the present study. The presence of a magnetic field lessens the heat transfer rate in nanofluid applications. The magnetic field inclination angle controls the flow and heat transfer of nanofluid. Nanofluid flow shows insignificant effects of the friction in cavities compared to that of the base fluid.

Three‐dimensional tilted hydromagnetic natural double‐diffusive convection in a rectangular cuboid filled with nanofluids based on magnetic nanoparticles

“…nf of are available in the works of Uddin 25 , and Uddin and Rahman. 26 As the domain of the study is 3D, the heated bottom surface is the function of xy space. In the present study, the temperature of the bottom surface is assumed as parallel to the x-axis and perpendicular to the z-axis.…”

Numerical Simulation for Buoyancy Induced Natural Convection of (Ag- MgO/H 2 O) Hybrid Nanofluid in a Horizontal Corrugated Cavity

“…The chamber turning effect has a bigger influence on the Nusselt number's value when low Rayleigh numbers were used. The three different types of nanoparticles that the researchers studied were Ag, CuO, and Al2O3 nanoparticles in the rectangular enclosure using two heat sources positioned at the depression's centre and base wall with a focus on free convection is studied by [12][13][14][15][16].…”

Impact of Non-Uniform Periodic Magnetic Field on Unsteady Natural Convection Flow of Nanofluids in Square Enclosure

“…The result showed that the size of the particles enhances the temperature flow rate. Uddin and Rahman [44] also performed the heat transportation of nanofluids within triangular cavities. Qayyum et al [45] studied a comparison study of viscous liquid including Joule heating for various nano-sized particles.…”