A multi-length-scale theory of the anomalous mixing-length growth for tracer flow in heterogeneous porous media |
| |
Authors: | Qiang Zhang |
| |
Institution: | (1) Department of Applied Mathematics and Statistics, SUNY at Stony Brook, 11794-3600 Stony Brook, New York |
| |
Abstract: | We develop a multi-length-scale (multifractal) theory for the effect of rock heterogeneity on the growth of the mixing layer of the flow of a passive tracer through porous media. The multifractal exponent of the size of the mixing layer is determined analytically from the statistical properties of a random velocity (permeability) field. The anomalous diffusion of the mixing layer can occur both on finite and on asymptotic length scales. |
| |
Keywords: | Random field porous media multifractals heterogeneity anomalous diffusion |
本文献已被 SpringerLink 等数据库收录! |