Walker diffusion method for calculation of transport properties of finite composite systems.
A heterogeneous medium may be represented by a scalar field of local transport coefficients (e.g., conductivity) or by a "resistor network" derived from that scalar field. In either case the effective (macroscopic) and local (microscopic) transport properties may be calculated by the walker diffusion method. Some sample calculations for disordered systems are presented to demonstrate the method.
Van Siclen
Clinton DeW
CD
Idaho National Engineering and Environmental Laboratory, Idaho Falls, Idaho 83415, USA. cvs@inel.gov