Coupled particle-fluid dynamics of hybrid ferrite nanofluids in porous media under MHD and radiative effects

In this work, the blended impact of magnetohydrodynamic (MHD) and radiation in heat transfer distribution of hybrid nanofluid based on Mn-ZnFe 2 O 4 and CoFe 2 O 4 considering a two phase (fluid-dust) model. Hybrid nanofluids outperform conventional nanofluids in the perspective of thermal performance, and the dust phase has major impact on momentum of flow and heat transfer processes. The focus is on the nonlinear convective heat transfer dynamics inside this fluid. To account for effects of nonlinear convection, viscous dissipation, permeability, Joule heating, and interphase momentum exchange, a two-phase mathematical model is created to specify the fluid and dust phases. The problem is solved using RK-4 method. Key parameters especially Forchheimer drag (Fr), Eckert number (Ec), Prandtl number (Pr), heat generation (Q) and thermal radiation (Rd) are pertinently analyzed. The research shows new ways to improve hybrid nanofluid thermal systems for enhanced energy storage, heat exchangers in industry, and magnetohydrodynamic (MHD) cooling. It is observed that the combination of CoFe 2 O 4 and Mn-ZnFe 2 O 4 nanoparticles in a water-based nanofluid significantly improves thermal conductivity along with heat transfer efficiency compared to mono-nanofluids. The dust phase interactions introduce momentum and heat transfer resistance, which must be accounted for in high-temperature applications.

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