Chemical reaction for Carreau-Yasuda nanofluid flow past a nonlinear stretching sheet considering Joule heating

• Published in: Results in physics 2018-03, Vol.8, p.1124-1130
• Main Authors: Khan, Mair, Shahid, Amna, Malik, M.Y., Salahuddin, T.
• Format: Article
• Language: English
• Subjects: Carreau-Yasuda nanofluid; Chemical reaction; Convective condition; Joule heating; MHD; Shooting method; Slip condition; Zero normal flux condition
• ISSN: 2211-3797; 2211-3797
• DOI: 10.1016/j.rinp.2018.01.018

•Carreau-Yasuda nanoparticles over a stretching sheet with chemical reactive species are discussed.•Zero normal flux, convective and slip condition are considered.•Thermophoresis and Brownian motion effects are assumed.•Similarity solution are obtained by using BVP4C method (MATLAB software).•Moreover friction factor, heat and mass transfer rates are illustrated through graphs and tables. Current analysis has been made to scrutinize the consequences of chemical response against magneto-hydrodynamic Carreau-Yasuda nanofluid flow induced by a non-linear stretching surface considering zero normal flux, slip and convective boundary conditions. Joule heating effect is also considered. Appropriate similarity approach is used to convert leading system of PDE’s for Carreau-Yasuda nanofluid into nonlinear ODE’s. Well known mathematical scheme namely shooting method is utilized to solve the system numerically. Physical parameters, namely Weissenberg number We, thermal slip parameter δ, thermophoresis number NT, non-linear stretching parameter n, magnetic field parameter M, velocity slip parameter k, Lewis number Le, Brownian motion parameter NB, Prandtl number Pr, Eckert number Ec and chemical reaction parameter γ upon temperature, velocity and concentration profiles are visualized through graphs and tables. Numerical influence of mass and heat transfer rates and friction factor are also represented in tabular as well as graphical form respectively. Skin friction coefficient reduces when Weissenberg number We is incremented. Rate of heat transfer enhances for large values of Brownian motion constraint NB. By increasing Lewis quantity Le rate of mass transfer declines.