Laminar natural convection in a two-dimensional
inclined square enclosure has been numerically studied using
finite volume method. The research deals with the
investigation of the effect of Prandtl number and inclination
angle on the stream contours and isotherms in this enclosure
where the left side wall is maintained at isothermal hot
temperature, while the opposite side wall is maintained at
isothermal cold temperature. The other top and bottom walls
are considered thermally insulated. The enclosure in the
present work is based on the geometry of Tofiqul Islam et al.
[9], (2007) which is considered inclined with inclination angles
ranging from 0o to 30o and filled with water as a working fluid
where its Prandtl number is taken as 6. All the numerical
calculations are performed at the external Rayleigh numbers
103 and 106 while the internal Rayleigh numbers ranging from
105 to 108. The results are presented as a streamline and
isotherm plots as well as the variation of the average Nusselt
numbers at the hot wall are also presented. The results show a
good confidence with other published results.