Effects of ohmic dissipation and Hall current on MHD ternary hybrid nanofluid flow over a radiating rotating disk

Rotational disk systems have imperative significance across diverse engineering, thermal, biomedical, and industrial domains, including applications such as mechanical rotors, viscometers, antenna collectors, and centrifugal pumping devices. The current study investigates the flow of a stable viscoelastic ternary hybrid nanoliquid induced by uniformly rotating and isothermally radiating disk, that is initially stretching with constant rate. Here, water is selected as the base fluid dispersed with cobalt ferrite magnetic nanoparticles (MNPs), multi-walled carbon nanotubes (NTs), and titania nanoparticles (NPs). The effect of time-dependent normal magnetic field, Hall current effect, thermal radiation, viscous dissipation, and joule heating are imperatively examined. The dimensionless aspect of the governing problem, reduced through a set of suitable similarity variables, is handled numerically using bvp4c. Results indicate that increased rotation parameter improves both transverse and radial components of velocity field, while reducing temperature distribution. Shakiness parameter produce a sinusoidal behavior of radial velocity, which enhances for higher values. Flow rates are significantly impacted by increments in the magnetic and Hall current parameters, while temperature is not significantly affected. Furthermore, the magnetic field parameter positively impacts the momentum boundary layer thickness. In contrast to the Eckert number, surges in radiation parameter increase the thermal measure. Regarding increases in fractional assemblies, C o F e 3 O 4 MNPs and T i O 2 NPs have significant influence on skin friction and Nusselt number, while C o F e 3 O 4 MNPs and M W C N T NTs have more pronounce effect on transverse friction. Furthermore, C o F e 3 O 4 / H 2 O NF manifest improvised convection rate, while C o F e 3 O 4 + M W C N T / H 2 O HNF and C o F e 3 O 4 + M W C N T + T i O 2 / H 2 O THNF favorably influence the flow rates. The results are visualized in graphs and tables to understand how the system behaves.