AUTHOR(S)

The objectives of this work are to build a mathematical model for the nanofluid flow problem in the presence first order chemical reaction. The flow over an isothermal horizontal circular cylinder is selected due to many engineering applications for this geometry. A set of nonlinear partial differential equation, coupled, that describes the physical behavior of the problem under study was derived. Numerical ways, finite element techniques, were used to treat the mathematical model. The most important quantities that have a good effect on the physical matter that appeared in the mathematical definition are the dimensionless chemical reaction parameter, the Brownian motion parameter and the thermophoresis parameter.
The influence of these dimensionless quantities on the velocity, temperature and concentration profiles is drawn graphically. Moreover, the influence on the engineering measures that have physical implementation, such as the local skin-friction coefficient, Nusselt Number, and Sherwood number are also discussed. It is observed that increasing chemical reaction parameter Λ tends to decrease velocity and concentration values but slightly enhances temperatures in the flow field; a rise in Λ also enhances values of the local Sherwood number but strongly reduces the local Nusselt number at the cylinder surface as so as the local surface shear stress function.