Wj. Chang et Cf. Hsiao, NATURAL-CONVECTION IN A VERTICAL CYLINDER FILLED WITH ANISOTROPIC POROUS-MEDIA, International journal of heat and mass transfer, 36(13), 1993, pp. 3361-3367
A SIMPLE numerical algorithm is used to analyze the natural convection
in a vertical cylindrical enclosure filled with a saturated anisotrop
ic porous medium. The boundary conditions of the enclosure are assumed
to be maintained at a uniform high temperature except that the temper
ature of the bottom is low. The effects of anisotropic permeability ra
tio, anisotropic thermal conductivity ratio, geometrical aspect ratio
and Rayleigh number on the flow field and heat transfer are investigat
ed. Numerical results show that the heat transfer rates of the side an
d bottom walls increase, either decreasing the values of anisotropic p
ermeability ratio or increasing the values of anisotropic thermal cond
uctivity ratio, and the side average Nusselt number increases as the a
spect ratio decreases.