FERROCONVECTION IN AN ANISOTROPIC POROUS-MEDIUM

The convection in ferro-fluids percolating through an anisotropic poro us medium heated from below is studied. The system is assumed to have anisotropy in the vertical direction. This is reflected by taking perm eability along the z-direction to have a constant ratio to the permeab ility along the horizontal plane. A linear stability analysis is carri ed out. The numerical and graphical results are presented. It is found that the vertical anisotropy stabilizes the system through marginal o r stationary mode.