Heat transfer analysis in the non-orthogonal flow of a non-Newtonian nanofluid with non-linear thermal radiation

Abstract

This analysis pertains to the non-Newtonian nanofluid impinging the surface of stretching obliquely. The base fluid under discussion obeys the constitutive equation of a UCM fluid. Use of similarity variables and RKF 45 numerical method along with shooting technique enabled us to obtain the solution of the problem. The effects of physical parameters associated with nanofluids on the flow variables are discussed in detail through graphs. The streamlines are skewed towards right of the stagnation point when the stagnation flow parameter is negative and towards left for positive values. Due to Brownian motion, thermophoresis and nonlinear thermal radiation temperature is enhanced. Brownian motion and chemical reaction have an increasing influence on Sherwood number while a reversal effect is noticed with thermophoresis. The results of this study are compared with those available in the existing literature and are found to be in good agreement.