Comparative appraisal of mono and hybrid nanofluid flows comprising carbon nanotubes over a three-dimensional surface impacted by Cattaneo–Christov heat flux

Abstract

Carbon nanotubes (CNTs) are nanoscale tubes made of carbon atoms with unique mechanical, electrical, and thermal properties. They have a variety of promising applications in electronics, energy storage, and composite materials and are found as single-wall carbon nanotubes (SWCNTs) and double-wall carbon nanotubes (DWCNTs). Considering such alluring attributes of nanotubes, the motive of the presented flow model is to compare the thermal performance of magnetohydrodynamic (MHD) mono (SWCNTs)/Ethylene glycol) and hybrid (DWCNTs- SWCNTs/Ethylene glycol) nanofluids over a bidirectional stretching surface. The thermal efficiency of the proposed model is gauged while considering the effects of Cattaneo-Christov heat flux with prescribed heat flux (PHF) and prescribed surface temperature (PST). The flow is assisted by the anisotropic slip at the boundary of the surface. The system of partial differential equations (PDEs) is converted into a nonlinear ordinary differential system by the use of similarity transformations and handled using the bvp4c numerical technique. To depict the relationship between the profiles and the parameters, graphs, and tables are illustrated. The significant outcome revealed that the fluid temperature rises in the scenario of both PST and PHF cases. In addition, the heat transfer efficiency of the hybrid nanoliquid is far ahead of the nanofluid flow. The truthfulness of the envisioned model in the limiting scenario is also given.

Utilization of variable thermal conductivity and diffusion coefficient on non-Newtonian Prandtl model with modified heat and mass fluxes

“…According to their research, fluid velocity slows down for both shrinking and stretching scenarios when the Prandtl fluid parameter and Hartmann number rise. The thermal performance of monolithic and hybrid nanofluids on a bidirectional stretching surface under Cattaneo-Christov heat flux is compared by Alharbi et al, (2023a). Using carbon nanotubes, they studied anisotropic slip, MHD effects and specified temperature settings.…”

Impact of Cattaneo-Christov Heat Flux in the Nanofluid Flow over an Inclined Permeable Surface with Irreversibility Analysis

“…An interesting result disclosed that nanoparticles' volume fraction improves the strength of the assumed magnetic field. Alharbi et al [3] performed a comparative analysis of simple nanofluid and hybrid nanofluid flows with CNTs (both single-wall and multi-wall) and ethylene glycol as a base fluid over a two-directional surface with prescribed heat flux and prescribed surface temperature amalgamated with modified Fourier heat flux. It is revealed here that prescribed heat flux and prescribed surface temperature are the main sources for the rise in the temperature of the fluid.…”

Optimizing heat transfer rate with sensitivity analysis on nonlinear radiative hydromagnetic hybrid nanofluid flow considering catalytic effects and slip condition: Hamilton–Crosser and Yamada–Ota modelling

“…Shahmir et al [34] assessed the impact of generated magnetic field on ferromagnetic ternary and hybrid nanofluid flows using surface catalysed reactions and entropy generation evaluation. Alharbi et al [35] conducted a comparative assessment of mono and hybrid nanofluid flows containing CNTs over a three-dimensional surface influenced by Cattaneo-Christov heat flux. Ramzan et al [36] analysed the heat transfer performance of temperature-dependent Xue and Yamada-Ota (YO) hybrid nanofluid flow models across a curved stretched sheet using generalised Fourier law.…”