https://doi.org/10.1140/epjp/i2011-11005-1
Regular Article
Variable viscosity effect on free convection of a non-Newtonian power-law fluid over a vertical cone in a porous medium with variable heat flux
Department of Mathematics, Faculty of Science, Benha University, (13518), Benha, Egypt
Received:
30
September
2010
Accepted:
21
November
2010
Published online:
18
January
2011
Abstract.: The effect of variable viscosity on the free-convection boundary layer over a permeable vertical cone in a porous medium saturated with non-Newtonian power-law fluid has been studied numerically. The governing equations describing the problem are transformed into a system of nonlinear ordinary differential equations by using a similarity transformation, which is solved numerically using the Chebyshev spectral method. The effects of the power-law index, blowing/suction parameter and the viscosity parameter on the temperature profiles and the local Nusselt number are discussed.
© Società Italiana di Fisica and Springer 2011
