Abstract The interest of raising thermal conductivity and optimizing industrial based materials for an enhanced efficiency and productivity has propels various studies on nanomaterials and non-Newtonian fluids. The uses of nanotechnology in technological advancement and industrial promotion could not be overstressed. Thus, the aim of this study is to numerically investigate the entropy formation, heat propagation and conduction of hybridized Casson ferrofluid with dissipation and radiation in a thin needle. The inherent heat transfer capability of magneto-hybridized Fe2O3 and Al2O3 solid nanoparticles in H2O based solvent motivated the study. The streaming nanofluid is controlled by magnetic field, heat generation and continuous stretching velocity. A partial derivative mathematical model is developed to describe the flow dimensions, and via similarity quantities, an invariant transformation of the model is obtained. A numerical and localized spectral linearization scheme is adopted for the thermodynamic and parameters sensitivities analyzes of the thermal fluid. As observed, the heat transfer comparison rate establishes that the thermal propagation of Fe2O3-Al2O3/water is 8.28% higher than Al2O3/water at 0.01% of volume fraction. The entropy formation is raised with rising nanoparticle size, and radiation and dissipation terms boosted temperature distribution.
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