Magnetic Force on CoFe ₂ O ₄ -SiO ₂ -Au/H ₂ O Nanofluidic in a Revolving Sphere with Cattaneo-Christov Heat Flux

Researchers have been inspired to examine nanofluid modeling in the presence of spinning spheres due to improved Applications of shielding and heat conductivity in solar collectors, concentrators, and electrical devices. Thermal study using the Cattaneo-Christov model, radiation and buoyancy effects in the Tiwari-Das model, a thorough evaluation of a spinning sphere has been carried out in this work. Similarity variables are used to convert governing PDEs into ODEs, and the bvp4c technic is then used to resolve them semi-analytically. Physical discussion is used to achieve the numerical and graphical results for different parameters. According to the study, the Au-SiO 2 -CoFe 2 O 4 /water tri-hybrid nanofluid exhibits the maximum heat transfer rate (3.912%), followed by Au-SiO 2 /water and Au/water (10.231%). Additionally, it is observed that the radiation effects prevent the coolant from bounding at the surface, which raises the fluid temperature.