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The present objective is to numerically analyze the induced magnetic field (IMF) effect of an unsteady MHD flow of Casson fluid through two infinite vertical plates. The effect of radiative heat has been scrutinized. Governing non-dimensional PDEs of the flow are discretized by the finite difference method to some algebraic system of equations, which is then numerically solved concerning the boundary conditions. The effects of the radiations, magnetic Prandtl number, Prandtl number, Hartmann number, and Casson parameter on temperature profile, velocity profile, and induced magnetic field have been depicted through graphs. The radiative effect and Prandtl number have considerable influence on the surface drag force and also on the rate of heat transfer. [ABSTRACT FROM AUTHOR]

Entropy generation is a crucial aspect of fluid dynamics and happens during all flow processes. In a sense, entropy indicates how to minimise thermal energy losses. This study examines entropy generation for a magnetohydrodynamic Casson fluid flow subject to a vertical cone. Here, impact of reaction by chemical and diffusion-thermo is scrutinized. Physical aspects of radiative flux transverse to the surface are deliberated. The governing non-linear PDEs and the total entropy expression are non-dimensionalized with the dimensionless quantities. Finite difference technique is implemented to get numerical and graphical results for the non-linear system. Entropy generation and Bejan number for the heat transfer has been analysed through plots and tables. The obtained results demonstrate that the embedded flow parameters have a considerable influence on both Bejan number and entropy generation. Bejan number with the influence of Casson parameter has a proportional effect with the Hartmann number and it falls with the rise in Dufour effect. [ABSTRACT FROM AUTHOR]