Numerical analysis of water-based ternary hybrid Casson nanofluid flow between rotating disks with radiation and chemical reactions

Abstract

This work examines magnetized trihybrid Casson nanofluid flow in combination of MgO, CoFe ₂ O ₄ and TiO ₂ nanoparticles mixed in H ₂ O through the gap amid two circular plates. Both the plates are spinning with some angular velocities. The flow is affected by Joule heating and thermally radiative effects. Further, the heterogeneous-homogeneous reactive effects are used in the flow system. The main equations are evaluated by the bvp4c approach numerically. As a consequence of this work, it is established that axial velocity augments with progression in the stretching parameter at the lower plate and Reynolds number, but declines with surge in the stretching factor of the upper plate and magnetic parameter. In all the scenarios, radial velocity exhibits twofold behaviour for variation in various parameters. Tangential velocity declines with progression in the magnetic factor, while it augments with a surge in the rotation factor. Thermal profiles augment with growth in the Eckert number, radiation, and magnetic parameters. Concentration profiles rise with growth in Reynolds number and drop with augmentation in Schmidt number and homogeneous/heterogeneous chemically reactive parameters. The results of this study are verified through a comparative analysis with existing literature.