Simultaneous Effects of Chemical Reaction, Heat Generation, Absorption on Solar Radiation over Magneto Hydrodynamics Stagnation Point Flow and Heat Transfer of a Nanofluid Over a Stretching Sheet

Abstract

This research is mainly concerned with the investigation of the influences of Heat generation/absorption as well as Chemical reaction over the MHD stagnation point flow along a stretchable sheet in a two- dimension. The effects of various physical parameters are considered such as Thermophoresis, solar radiation, Brownian motion, Magnetic field, among others. The governing system of partial differential equations is converted into an ordinary differential system by the use of boundary layer approximation alongside the similarity transformation which is then solved numerically by Runge-Kutta-Fehlberg method along with the shooting technique. The effects of these physical parameters are studied and analyzed using tables and graphs. The numerical results (validation tables) show the superb accuracy of our work when compared to the previous publications. Furthermore, it was discovered that temperature, nanoparticle concentration, Nusselt number also the thickness of the thermal boundary layer is rising functions with respect to heat generation/ absorption, chemical reaction, Eckert number and magnetic parameter, the data also revealed that when the chemical reaction parameter is increased this will result in a decrease of the Sherwood number, but the reverse is recorded in the case of heat generation/absorption parameter. Furthermore, momentum and nanoparticle concentration decrease rapidly with the increase in the values of radiation parameter.