Computing and Comparing Effective Properties for Flow and Transport in Computer-Generated Porous Media
Comparison of hydraulic and diffusive flows through a low porosity geometry comprised of randomly distributed squares: . (a, b) Fluid flow driven by . (c, d) Diffusive flow driven by from west to east. “Hot spots” of fastest moving hydraulic flow are evident in channel centers, while diffusive speeds are fastest along fluid-solid boundaries.
|(a) Fluid speed|
|(b) Close-up of boxed region in (a)|
|(c) Diffusion speed|
|(d) Close-up of boxed region in (c)|