Hydraulic conductivity in spatially varying media-a pore-scale investigation
J Jang, GA Narsilio, JC Santamarina
GEOPHYSICAL JOURNAL INTERNATIONAL | WILEY-BLACKWELL | Published : 2011
The hydraulic conductivity can control geotechnical design, resource recovery and waste disposal. We investigate the effect of pore-scale spatial variability on flow patterns and hydraulic conductivity using network models realized with various tube size distributions, coordination number, coefficient of variation, correlation and anisotropy. In addition, we analyse flow patterns to understand observed trends in hydraulic conductivity. In most cases, the hydraulic conductivity decreases as the variance in pore size increases because flow becomes gradually localized along fewer flow paths; as few as 10 per cent of pores may be responsible for 50 per cent of the total flow in media with high p..View full abstract
Awarded by DOE/NETL
Support for this research was provided by the National Science Foundation and by DOE/NETL Methane Hydrate Project under contract DE-FC26-06NT42963.