Thermal Heat Transfer Enhancement Analysis of Magnetic Ternary Hybrid Nanofluid in a Hexagonal Cavity with Square Obstacle

This study aims to explore the natural convection, magnetohydrodynamics and ternary nanofluids containing Fe۳O۴, Cu and TiO۲ in water-ethylene glycol within a hexagonal cavity containing a square obstacle. The Finite element method is utilized through the COMSOL Multiphysics ۶.۱ software. By utilizing visual representations, the influence of key variables on flow patterns, temperature distribution, and local Nusselt number is effectively illustrated. Simulations were carried out with Rayleigh number ranging from ۱۰۳ to ۱۰۵, heat source and absorption coefficients ranging from -۵ to ۱۵, and Hartmann numbers of ۰, ۷۰ and ۹۰. The Prandtl number for ethylene glycol is ۲۹.۸۶. The findings of this research confirm that the proper incorporation of nanoparticles significantly enhances the heat transfer properties of base fluids.

کلیدواژه ها:

Natural convection ، hexagonal cavity ، ternary hybrid nanofluid ، MHD ، Heat generation/absorption ، COMSOL multiphysics