J. Phys. France 51, 1051-1053 (1990)
DOI: 10.1051/jphys:0199000510110105100
Direct simulation of a permeable membrane
U. BrosaHLRZ c/o KFA, Postfach 1913, D-517 Jülich, F.R.G.
Abstract
Cellular automata are used to compute flow thru a permeable membrane. Scattering centers constitute the membrane. This is in marked contrast to the approach of classical hydrodynamics which represents a membrane by a boundary condition. With the scattering centers we obtain different, but more plausible results indicating that simple diffusion is the dominating process in a porous layer. We have thus a case where cellular automata show superiority over the classical methods of theoretical hydrodynamics.
8239W - Ion exchange, dialysis, osmosis, electro-osmosis, membrane processes.
4755M - Flows through porous media.
Key words
diffusion in solids -- finite automata -- flow through porous media -- membranes -- permeability