Identification of relative conductivity models for water flow and solute transport in unsaturated bentonite

An integrated assessment of the impact of precipitation and groundwater on vegetation growth in arid and semiarid areas

“…The bottom boundary is a variable water head boundary, in which the boundary water head data were obtained from the long-term measurements of the well K1. We assume that the water flow in the variably saturated porous media is three-dimensional isothermal Darcian flow and the flow equation is given by a modified form of the Richards' equation (Dai and Samper, 2004;Dai et al, 2008;Šimůnek et al, 2011):…”

“…The geological cross section and the finite element mesh for numerical simulations are showed in Figure 8. The flow model parameters listed in Table 2 are collected from local infiltration experiments and literatures (Dai et al, 2008;Šimůnek et al, 2011). Figure 9 shows the numerical simulation results.…”

A coupled THMC model of a heating and hydration laboratory experiment in unsaturated compacted FEBEX bentonite

“…The inverse approach provides a way to determine unknown model parameters by fitting the forward model output to measured data. Inverse algorithms have been used to estimate soil hydraulic properties from transient infiltration data (Eching et al, 1994;Šimunek and van Genuchten, 1996;Inoue et al, 1998;Pan and Wu, 1998;Dai et al, 2008), and recently, inverse methods have been used also for multicomponent reactive transport (Tebes-Stevens et al, 2001;Dai and Samper, 2004;Samper et al, 2008c).…”

Probabilistic evaluation of shallow groundwater resources at a hypothetical carbon sequestration site

“…The Brooks and Corey3536 relative permeability is used for water/CO 2 multiphase flow simulations and the related coefficients are adopted from a literature review35363738. The numerical simulations always start from steady-state flow simulations as the initial conditions and then simulate the CO 2 multi-phase reactive transport in the aquifer for 200 years.…”