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An analysis has been carried out the effect of binary chemical reaction on the MHD Casson fluid flow over an exponentially stretching surface in the presence of Cattaneo-Christov heat flux. Additionally, the aspects of binary chemical reaction effects with modified Arrhenius activation energy are analyzed. The stretching velocity, reaction rate, wall temperature and wall concentration are expected to differ according to specific exponential form. Appropriate self-transformed variables are used to deal with non-linear differential systems which are solved by the Runge-Kutta scheme. The impacts of active parameters are manifested graphically in velocity, temperature and concentration fields for two different fluid cases namely Newtonian and Non-Newtonian. This investigation divulges that the Newtonian fluid has a higher temperature than non-Newtonian fluid. Strengthen the magnetic field causes the Newtonian/non-Newtonian fluid flow tends to declines.

Present work aims to investigate the blood stream in a permeable vessel in the presence of an external magnetic field with heat and mass transfer. The instability in the coupled flow and temperature fields is considered to be produced due to the time-dependent extending velocity and the surface temperature of the vessel. The non-uniform heat source/sink effects on a chemically responded blood stream and heat viscous. This study is of potential value in the clinical healing of cardiovascular disorders accompanied by accelerated circulation. The problem is treated mathematically by reducing it to a system of joined non-linear differential equations, which have been solved by utilizing similarity transformation and boundary layer approximation. The resultant non-linear coupled ordinary differential equations are solved numerically by utilizing the fourth order Runge-Kutta method with shooting technique. Computational results are gotten for the velocity, temperature, the skin-friction coefficient, the rate of heat transfer and rate of mass transfer in the vessel. The evaluated results are compared with another analytical study reported earlier in scientific literatures. The present investigation exposes that the heat transfer rate is upgraded as the value of the unsteadiness parameter increases, but it decreases for the increment of the space reliance parameter for heat source/sink.