Flow in Rough Self-Affine Fractures Joints
| dc.creator | Andrade Jr., José S. | |
| dc.creator | Araújo, Ascânio D. | |
| dc.creator | Oliveira, Fernando A. | |
| dc.creator | Hansen, Alex | |
| dc.date | 2006-08-30 | |
| dc.date.accessioned | 2026-07-07T07:19:51Z | |
| dc.date.available | 2026-07-07T07:19:51Z | |
| dc.description | We investigate viscous and non-viscous flow in two-dimensional self-affine fracture joints through direct numerical simulations of the Navier-Stokes equations. As a novel hydrodynamic feature of this flow system, we find that the effective permeability at higher Reynolds number to cubic order, falls into two regimes as a function of the Hurst exponent $h$ characterizing the fracture joints. For $h>1/2$, we find a weak dependency whereas for $h<1/2$, the dependency is strong. A similar behavior is found for the higher order coefficients. We also study the velocity fluctuations in space of a passive scalar. These are strongly correlated on smaller length scales, but decorrelates on larger scales. Moreover, the fluctuations on larger scale are insensitive to the value of the Reynolds number. | |
| dc.description | 4 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0608654 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0608654 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/114783 | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.subject | Statistical Mechanics | |
| dc.title | Flow in Rough Self-Affine Fractures Joints | |
| dc.type | text |