A Spectral Relaxation Approach for Boundary Layer Flow of Nanofluid Past an Exponentially Stretching Surface with Variable Suction in the Presence of Heat Source/Sink with Viscous Dissipation

Abstract

The present examination is considered to discuss the steady, two-dimensional flow of heat and mass transfer of nanofluid flow along with the variable suction under the influence of heat source/sink alongside the viscous dissipation. Because of the stretchable surface, flow is generated. Spectral relaxation technique is used to acquire the numerical solution for the altered nonlinear group of differential equations. Thereafter, outcomes which were obtained from the above numerical technique are validated by comparing with the available outcomes in the existing literature and also with MATLAB inbuilt solver bvp4c. All the acquired results from the above numerical system are shown through graphs and tables to discuss different resulting parameters related to the present analysis. The range of the physical parameters is taken as $$- \\;0.1 \\le f_{w} \\le 0.5, \\;0.1 \\le Nt \\le 0.7, \\;0.1 \\le Nb \\le 0.7, \\;0 \\le Ec \\le 1.2, \\; - 0.5 \\le Q \\le 0.5, 1 \\le Pr \\le 10,\\; 1 \\le Le \\le 5.$$\n The main findings are as follows: For the effect of suction parameter, the profiles of velocity, temperature and mass friction are decreased, and the coefficient of skin friction and Nusselt number is declined for the impact of thermophoresis parameter.