Steady natural convection cooling of a localized
heat source at the bottom wall of an enclosure filled
with Cu-water nanofluid for a variety of thermal boundary
conditions at the sidewalls has been studied in the present
paper. Finite difference method was employed to solve the
dimensionless governing equations of the problem. The
effects of governing parameters, namely, solid volume
fraction, the different values of the heat source length and
the different locations of the heat source on the streamlines
and isotherms contours as well as maximum temperature,
Nusselt number and average Nusselt number along the heat
source were considered. The present results are validated
by favorable comparisons with previously published results.
The results of the problem are presented in graphical and
tabular forms and discussed.