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This article communicates the study of magnetohydrodynamic (MHD) stagnation point flow of Casson liquid towards a stretched surface. Chemical reaction model involving both heat and mass transfer is established. Effects of viscous dissipation and Joule heating are also considered. Appropriate transformations yield strong nonlinear ordinary differential system. The obtained nonlinear systems have been solved through built-in shooting method. Velocity field shows decreasing behavior for higher estimation of magnetic parameter while temperature field shows increasing behavior for larger homogeneous heat parameter. Graphical behaviors of velocity, temperature and concentration are analyzed comprehensively corresponding to various pertinent parameters.

The study explores the velocity of Casson fluid that is time-independent over an exponentially infinite isotherm vertical permeable sheet. The impact of magnetohydrodynamic (MHD) with Casson flow over the permeability sheet is examined. In contrast, thermal radiation and heat sink parameters have been incorporated. This study’s primary goal is to determine the significance of thermal radiation on Casson flow with MHD using an analytical solution over a permeable sheet. The flow of the fluid occurs above the sheet when $y$ is greater than zero, and the sheet extends far away in the $x$-direction. The model of governing equations is reduced by applying a suitable set of dimensionless parameters. These dimensionless systems of equations are solved through the Laplace transformation method. The impacts of various variables over velocity, temperature, concentration, skin friction, and Nuseelt number are scrutinized. These variables contain magnetic field $M$, Casson fluid parameter $\beta$, Ghroshof number $\mathrm{\text{Gr}}$, modified Grashof number $\mathrm{\text{Gc}}$, Prandtl number $\mathrm{\text{Pr}}$, thermal radiation $\mathrm{\text{Rd}}$ and Scimdth number $\mathrm{\text{Sc}}$. These plots are sketched for the considerable magnitude of these variables through the Mathematica Software, and these plots are discussed in detail. Results show that the increasing value of $M$ reduces the fluid velocity but velocity of fluid is enhanced with larger values of $\mathrm{\text{Gr}}$, $\mathrm{\text{Gc}}$ and $\beta$. The impact of Skin friction and Nusselt number is elaborated by tabular outlined.