A Computational Study of <scp>MHD</scp> Radiative Viscoelastic Nanofluid Over a Stretching Sheet With Thermophoresis and Chemical Reaction

ABSTRACT This study investigates the flow of a non‐Newtonian viscoelastic fluid over a stretched sheet within a porous medium, accounting for magnetic force, thermophoresis, thermal radiation, heat and mass transfer, Brownian motion, and chemical reactions. The unsteady governing equations are derived using the boundary layer approximation and are subsequently transformed into a dimensionless form. The explicit finite difference scheme is consequently executed to numerically solve the equations with the help of the programming code FORTRAN 6.6.a. Additionally, specific parameters for stability and convergence are established to ensure that the solution converges. The physical behavior of significant parameters has been widely described on a variety of flow fields using both the tabular and graphical representations. With the use of sophisticated streamline and isotherm visualization, the variation in the depth of the momentum and thermal border layer is identified. As the fluid's enhanced elasticity enables it to store and release energy more effectively, a higher elastic value for the fluid improves the velocity distribution and stimulates quicker flow. It has been found that raising elastic parameter builds up the fluid's resistance to deformation and promotes skin friction at the surface. The findings give new insights on the changing behavior of the thermophoresis ( Nt ) parameter, as viscoelastic fluids exhibit complex flow features such as elasticity or shear‐thinning qualities. These characteristics inhibit heat transmission, resulting in a comparably lower Nusselt number than Newtonian fluids. At last, a favorable consensus is reached as part of guarantee the validity of the current investigation.