Abstract
This article addresses the (MHD) magnetohydrodynamic flow of second grade nano-fluid. Stagnation point flow towards a stretched Riga wall is examined. Heat and mass transfer analyses are based upon Cattaneo-Christov (CC) theory. These considerations are entirely different than classical heat and mass fluxes by Fourier and Fick's laws. In addition, the convective condition of heat transfer is involved. Novel concept of entropy generation is highlighted. Formulation also consists of thermal radiation, heat generation and mixed convection. Brownian motion and thermophoresis effects through double diffusion concepts in energy and concentration expressions are modeled in correct manner. The resulting problems are computed by modern approach known as Optimal homotopy analysis method (OHAM). This technique is frequently used for solving non-linear differential equations encountered in applied science and engineering. Total square residual error is computed. Velocity enhances for higher values of second grade and magnetic parameters. Higher estimation of thermal relaxation and solutal concentration parameter both temperature concentration are reducing. Physical arguments for important parameters of interest are organized.
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