Analysis of convective heat transfer in triple diffusive free convection flow of Williamson nanofluid along a horizontal plate

Abstract

ABSTRACTThis research investigates the concurrent effects of three different diffusion mechanisms, species diffusion, thermal diffusion, and nanoparticle diffusion, on the convective heat transfer and mass transfer properties of a nanofluid. As a part of the study, a further level of complexity is added using the convective boundary condition by considering the interaction between surface heat flow and surrounding fluid dynamics. Further the transformed governing equations are obtained with the help of similarity solutions. The Runge-Kutta-Fehlberg method is used with the shooting approach to get numerical solutions for the simplified equations. The influences of various involved parameters on velocity profiles, temperature profiles, concentration, local skin friction, local Nusselt and Sherwood numbers are discussed. The significant outcomes of the study are observed as the decrease in the velocity and fluid temperature during the increase of the suction parameters, and the indication of the evacuation of fluid from the surface that lessens the heat transmission and lowers the temperature profiles. The fluid temperature is raised by the augmentation in the conductive parameter. It has also been found that the mass transfer rate increased as the salts are included. The heat transfer decreases with higher thermophoresis strength but increases with higher Prandtl number.