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Title Effect of Thermal Radiation on Hybrid Nanofluid Flow over a Curved Stretching Surface

Author(s) Firza Umer

Abstract The analysis of heat transfer characteristics of thermally radiative hybrid nanofluids over an exponentially curved surface proves essential for engineering and industrial applications like in polymer processing, materials science, mechanical engineering and aerospace engineering, all of which involve intricate geometry. A number of researchers have delve into the subject of MHD boundary layer flow over a curved stretching surface in light of the expanding technical significance of magnetohydrodynamic (MHD) phenomenon. The current study is based on steady, two dimensional, laminar flow of an electrically conducting, viscous and incompressible fluid flowing over an exponentially curved stretching surface with inclusion of viscous dissipation, thermal radiation and multiple shape factors. The considered hybrid nanofluid is comprised up of two nanoparticles, aluminum oxide and copper, and water is serving as the base fluid. The flow is induced by the curved surface's exponential stretching features. The Darcy Forchheimer effect is utilized to influence the momentum analysis. The governing equations for the hybrid nanofluid flow model are highly complicated coupled system of equations. Mathematical modeling is employed in order to transform the physical system into a set of partial differential equations, which are subsequently simplified as a system of nonlinear ordinary differential equations by employing appropriate similarity variables. The amended non-dimensional momentum and energy equations give the numerical solutions using the bvp4c MATLAB built in solver. The results are displayed in the form of graphs that investigates how different physical parameters influence the velocity profile, temperature profile, local Nusselt number and skin friction coefficient. It is observed that in contrast to magnetic parameter behavior, the velocity profile of a hybrid nanofluid rises with curvature parameter values. Meanwhile, it has been determined that the temperature profile improves for enhancing values of the thermal radiation parameter, Eckert number and the magnetic parameter. The highest thermal conductivity is observed in blade-shaped nanoparticles in most of the cases, whereas brick-shaped nanoparticles have the least.

Type Thesis/Dissertation MS

Faculty Engineering and Computer Science

Department Mathematics

Language English

Publication Date 2024-06-07

Subject Mathematics

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