Laboratory Studies on Air Permeability

Evaluating the relative air permeability of porous media from their water retention curves

“…The need for accurate modeling of multiphase flow and transport processes is steadily increasing in various domains such as agriculture, hydrology, petroleum engineering, and environment‐related issues such as groundwater remediation [ Honarpour et al ., ; Stonestrom and Rubin , ; Springer et al ., ; Clayton , ; Dury et al ., ; Bhattarai et al ., ; Niu et al ., ; Ben Noah and Friedman , ].…”

“…Several modeling approaches and expressions were developed during the last century and a recent review can be found in Assouline and Or []. Similarly, modeling the air movement in unsaturated porous media requires the definition of the air permeability as a function of water content [ Springer et al ., ].…”

Effects of Water Retention Curves and Permeability Equations on the Prediction of Relative Air Permeability

“…Accurate modeling of air flow in porous media is significantly important for various branches of geosciences and engineering that include, but are not limited to, hydrology, hydrogeophysics, petroleum engineering, and environmental engineering (Assouline et al., 2016; Honarpour et al., 1986; Springer et al., 1995). The simulation of air movement in unsaturated porous media needs the accurate estimate of relative air permeability (RAP) as a function of the water content (Springer et al., 1995).…”

“…Accurate modeling of air flow in porous media is significantly important for various branches of geosciences and engineering that include, but are not limited to, hydrology, hydrogeophysics, petroleum engineering, and environmental engineering (Assouline et al., 2016; Honarpour et al., 1986; Springer et al., 1995). The simulation of air movement in unsaturated porous media needs the accurate estimate of relative air permeability (RAP) as a function of the water content (Springer et al., 1995). The RAP, in fact, is a required parameter for the numerical simulation of subsurface two‐phase flow under isothermal (e.g., Kueper & Frind, 1991; Zang et al., 2019) and thermal conditions (e.g., Mohanty & Yang, 2013; Vanderborght et al., 2017), which has significant implications for many geophysical issues such as the investigation of soil aeration and evapotranspiration (e.g., Ben‐Noah & Friedman, 2018), the determination of transport of organic contaminants in the underground (e.g., Essaid et al., 2015), the simulation of reservoir CO 2 injection (e.g., Celia et al., 2015; Oostrom et al., 2016), and the study of hydraulic fracturing fluid migration in the subsurface (e.g., Birdsell et al., 2015a, 2015b).…”