Abstract
A steady non-Newtonian Carreau fluid model is considered over a two-dimensional, semi-wide, extended nonlinear stretching surface with thermal radiation effects. By applying the hypothesis of boundary layers alongside all notions, we have a structure of PDEs in our legislation such as the law of conservation of mass, momentum, energy and concentration. With the help of the boundary layer approximation, we get the system of partial differential equations (PDEs). Then, through the application of Lie scaling, we transformed these PDEs to ordinary differential equations (ODEs). Then, these ODEs were solved numerically by using the bvp4c technique in MATLAB and analyzed the results. With an increase in the number of Weissenberg for n = 0.5 (shear-thinning), we see that the fluid velocity has an increasing attitude. As, the amount of Weissenberg number increases, the velocity profile decreases at n = 1.5 (shearthickening). With n = 1.5, the velocity and temperature profiles have been decreased by the suction parameter. As the Prandtl number varies, the temperature profile simultaneously increases (n = 0.5) and decreases (n = 1.5). The physical amounts are analyzed using graphs and tables. The convergence review was presented to illustrate that the conclusions were well understood. (C) 2021 Elsevier Ltd. All rights reserved.