25 citations · 54 across the 8 of their papers we have counts for
8 papers
Upscaling transport in heterogeneous media featuring local-scale dispersion: flow channeling, macro-retardation and parameter prediction
Lian Zhou, Scott K. Hansen
Many theoretical treatments of transport in heterogeneous Darcy flows consider advection only. When local-scale dispersion is neglected, flux-weighting persists over time; mean Lag…
Impacts of permeability heterogeneity and background flow on supercritical CO2 dissolution in the deep subsurface
Scott K. Hansen, Yichen Tao, Satish Karra
Motivated by CO2 capture and sequestration (CCS) design considerations, we consider the coupled effects of permeability heterogeneity and background flow on the dissolution of a su…
Modeling non-Fickian solute transport due to mass transfer and physical heterogeneity on arbitrary groundwater velocity fields
Scott K. Hansen, Brian Berkowitz
We present a hybrid approach to groundwater transport modeling, "CTRW-on-a-streamline", that allows continuous-time random walk (CTRW) particle tracking on large-scale, explicitly-…
Inferring subsurface heterogeneity from push-drift tracer tests
Scott K. Hansen, Velimir V. Vesselinov, Paul W. Reimus +1
We consider the late-time tailing in a tracer test performed with a push-drift methodology (i.e., quasi-radial injection followed by drift under natural gradient). Numerical simula…
Characterizing the impact of model error in hydrogeologic time series recovery inverse problems
Scott K. Hansen, Jiachuan He, Velimir V. Vesselinov
Hydrogeologic models are commonly over-smoothed relative to reality, owing to the difficulty of obtaining accurate high-resolution information about the subsurface. When used in an…
Local equilibrium and retardation revisited
Scott K. Hansen, Velimir V. Vesselinov
In modeling solute transport with mobile-immobile mass transfer (MIMT), it is common to use an advection-dispersion equation (ADE) with a retardation factor, or retarded ADE. This…