Transient conditions effects on electromagnetic Casson fluid flow via stretching surface: System thermal case elaboration

Abstract

In magnetohydrodynamics (MHD) flowing and mass transfer, 2-D unsteady non-Newtonian liquid flow across the stretched surface with a surface temperature had been examined numerically. Casson fluid model was utilized for the full description of the non-Newtonian fluid. Similarity transformation had been considered for transforming the dimensionless heat and fluid flow basic partial differential equations into simple ordinary equations. After that, the bvp4c MATLAB solver utilizes numerical methods to resolve the altered equations. We study and discuss in depth the flowing and heating attributes under various parameters, including the magnetic, Casson, and unsteadiness parameters, Schmidt number, and Prandtl number. It has been proven numerically that the velocity of the fluid first reduces when temperature and unsteadiness parameters increase, which significantly negatively impacts concentration. The velocity field is suppressed when the Casson parameter’s values are increased. But when with the increment of the Casson variable, then, the concentration and temperature go up. The velocity field is suppressed as the magnetic parameter’s values increase. But with the rise in the magnetic parameter, there will be an improvement in both the temperature and concentration.