Numerical studies of gravity destabilized percolation in 2D porous media Z. Bo, D. Loggia, L. Xiaorong, G. Vasseur and H. Ping Eur. Phys. J. B, 50 4 (2006) 631-637 Published online: 17 May 2006 DOI: 10.1140/epjb/e2006-00168-y