Thermal and radiative effects on unsteady MHD flow of Casson fluid past a rotating porous medium with variable mass diffusion

This research examines the radiative components in heat and mass transfer phenomena in an
unsteady MHD flow of Casson fluid past a vertical plate, set in a rotating porous medium. The
fluid on the surface of the plate is maintained at a constant temperature while the mass transfer is
set to vary. To examine the impact of heat generation, radiation, and variable mass diffusion on
the velocity, temperature, and concentration profiles, the appropriate models are devised. The
governing nonlinear partial differential equations are addressed through the use of Laplace
transformations. The findings indicate that buoyancy forces imparted by the Grashof numbers
considerably increase the velocity due to convection currents. However, the magnetic parameter
counteracts velocity due to the Lorentz force while larger porosity increases fluid flow.
Furthermore, radiation was demonstrated to decrease velocity and temperature from loss of
heating while heat transfer increased temperature and velocity by injecting energy into the
system. From the above results it can be seen that there are applications of these findings in the
industrial and environmental context for example during MHD flow and filtration processes.