Axisymmetric Flow of a Nanofluid Over a Radially Permeable Shrinking Sheet with a Convective Boundary Condition
Nor Azizah Yacob,
The problem of an axisymmetric flow of a nanofluid over a radially permeable shrinking sheet with convective
surface boundary condition is studied numerically. The governing partial differential equations are transformed into ordinary
differential equations by a similarity transformation, before being solved numerically using a shooting method. The
effects of the Lewis number Le , Brownian motion parameter Nb , thermophoresis parameter Nt , and the Biot number
Bi on the heat and mass transfer characteristics are studied. It is found that the solution exists only if adequate suction
through the permeable sheet is introduced. Moreover, unique, dual and triple solutions are found to exist for a certain
range of the suction parameter. Furthermore, increasing the Lewis number and the Brownian motion parameter are to decrease
the heat transfer rate at the surface but increase the mass transfer rate. Both the heat and mass transfer rates at the
surface decrease with increasing values of the thermophoresis parameter.
Keywords: Boundary layer, convective boundary condition, multiple solutions, nanofluid, shrinking.
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