Abstract
The present study scrutinizes slip effects and stagnation point flows of upper-convected Maxwell fluid past a stretching sheet. The non-linear ordinary differential equations are obtained from the governing partial differential equations and solved using implicit finite difference method. The impacts of non-dimensional governing parameters such as Brownian motion parameter, velocity ratio, velocity slip parameter, suction/injection parameter, Lewis numbers, upper-convected Maxwell parameter, magnetic field, thermophoresis parameter, chemical reactions parameter, thermal slip parameter, solutal slip parameter, and heat source parameter on the velocity field, heat and mass transfer characteristics are discussed and presented through graphs. The values of local Sherwood number, local Nusselt number, and skin friction coefficient are discussed and presented through tables. The results indicate that when the magnetic field is intensified, it reduces velocity profiles and raises temperature and concentration profiles. Moreover, with an upsurge in velocity slip parameter, the local Nusselt number and local Sherwood number diminish.
Highlights
Nanofluid is a colloidal postponement containing nanoparticles in a base fluid
This paper analyzed the effects of slip and chemical reaction on upper-convected Maxwell fluid flow over a stretching sheet
For various values of effective governing parameters such as velocity ratio S, the suction-injection parameter, E velocity ratio, Deborah number β, magnetic field parameter M, velocity slip parameter λ, thermal slip parameter δ, solutal slip parameter γ, thermal radiation parameter M, Prandtl number Pr, Brownian motion parameter Nb, thermophoresis parameter Nt, Lewis number Le, chemical reaction parameter h, and heat source parameter Q, the numerical solutions of velocity, temperature, and concentration are obtained with step size Δη = 0.1
Summary
Nanofluid is a colloidal postponement containing nanoparticles in a base fluid. Nanofluids have enhanced physical properties such as mass diffusivity, thermal diffusivity and conductivity, viscosity, and convective heat transfer coefficients compared to those of base fluids. Heat transfer applications (in industrial cooling applications as smart fluids, in nuclear reactors, in extraction of geothermal energy sources), automotive applications (as nanofluid coolant and nanofluid in fuel, brake, and other vehicular nanofluids), electronic applications (cooling of microchips, micro scale fluid applications), and biomedical applications (nano drug delivery, cancer therapeutics, cryopreservation, nano cryosurgery), etc. Because of these original properties, nanofluids are important to study. In the presence of graphene nanoparticles, Khan et al [12] investigated the Eyring-Powell slip flow of a nano liquid film
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