Abstract Numerical studies were conducted to investigate the natural convection heat transfer around a uniformly heated thin plate with arbitrary inclination in an infinite space. The numerical approach was based on the finite volume technique with a no staggered grid arrangement.For handling the pressure±velocity coupling the SIMPLE-algorithm was used. QUICK scheme and ®rst order up-wind scheme were employed for discretization of the momentum and energy convective terms respectively. Plate width and heating rate were used to vary the modified Rayleigh number over the range of 4:8 Â 10 6 to 1:87 Â 10 8. Local and average heat transfer characteristics were compared with regarding to the inclination angle.The empirical expressions for local and average Nusselt number were correlated. It has been found that for incli-nation angle less than 10, the ¯ow and heat transfer characteristics are complicated and the average Nusselt number can not be correlated by one equation while for inclination angle larger than 10, the average Nusselt number can be correlated into an elegant correlation.
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