RECONSTRUCTION OF NONHOMOGENEOUS POROUS-MEDIA

An analytical method for the generation of model porous structures (la ttice structures) exhibiting a given nonuniform void fraction distribu tion and a given two-point (pore-pore) correlation function is present ed, The method proposed for the generation of correlated and nonhomoge neous porous models is based on the application of a nonlinear filter to a stochastic correlated process. This process originates from the l inear superposition of a suitable set of stochastic processes possessi ng Gaussian decay in the second-order correlation function.