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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.
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