FDM Simulation of Cu–Al₂O₃/Water Casson Hybrid Nanofluid Flow and Thermal Transport in a Couette System
Abstract
This paper numerically inspects the unsteady Couette Casson hybrid nanofluid (HNF) containing copper (Cu) and aluminum oxide (Al₂O₃) nanoparticles dissolved in water. The upper wall is set in uniform motion, and the lower wall is taken as stationary and stretchable. Finite difference method (FDM) is used to integrate the governed nonlinear partial differential equations. The results are explored through streamlines, isotherms, Nusselt number and skin friction. The impact of key dimensionless numbers such as Grashof number, Biot number, stretching parameter, Casson parameter, and Eckert number on Cu-Al₂O₃-water HNF is discussed. The results disclose that the flow and heat transfer(HT) can be controlled considerably by the key parameters.
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References
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Copyright (c) 2026 Khasim Ali, Ramesh Alluguvelli, Swatmaram, Chandra Shekar Balla, K. Praveen Kumar, E. Jagathprabhav

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