(Alneelain University, 2016-12) Abubakr Eltayeb Mohammed Eltayeb
In this study the problem of unsteady nano
uid
ow over a stretching sheet subject to
couple stress e ects is presented. Instead of assuming that the nano-particle volume
fraction at the boundary surface may be actively controlled, a realistic boundary
condition for the nanoparticle volume fraction model is that the nano-particle
ux at
the boundary be set to zero. We assume there is no active control of the nano-particle
volume fraction at boundary. The spectral local linearisation method has been used
to solve the governing equations, moreover the results were further con rmed by
using the quasi-linearization method. The qualitative and quantitative e ects of the
dimensionless parameters in the problem such as the couple stress parameter, the
Prandtl number, the Brownian motion parameter, the thermophoresis parameter and
the Lewis number on the
uid behavior are determined.
i
