Impact of Hall Current on a 3D Casson Nanofluid Flow Past a Rotating Deformable Disk with Variable Characteristics

The significance of the present investigation is to explore the impacts of the Hall current and variable traits of thermal conductivity and the mass diffusion instead of the constant on a three-dimensional (3D) Darcy-Forchheimer-Casson nanofluid flow past a deformable rotating disk extendable in the radial direction. However, the motion of the flow is induced owing to the rotation and deformation of the disk. The process of heat transfer is inspected in the presence of the Cattaneo-Christov heat and mass fluxes, thermal radiation, and the activation energy amalgamated with chemical reaction added to witness the effect on the mass transfer. The novelty of the model is enhanced with the additional effects of momentum slip and convective boundary conditions. On utilizing the Von Karmann similarity variable, the formulated problem is transformed into ordinary differential equations. A numerical solution for the system of the differential equations is attained by employing the bvp4c function in MATLAB. The upshot of sundry parameters versus involved profiles is deliberated graphically. It is perceived that on escalating the Brownian motion and temperature-dependent thermal conductivity, the temperature field escalates. The velocity field in radial and azimuthal direction decays for up surging the Casson fluid and magnetic parameters. A comparative analysis of the present investigation with an already published work is also added to substantiate the envisioned problem.