Heterogeneity across a broad range of scales in geologic porous media often manifests in
observations of non-Fickian or anomalous transport. While traditional anomalous transport …

Mixing-driven reactions in porous media are ubiquitous and span natural and engineered
environments, yet predicting where and how quickly reactions occur is immensely …

Pore-scale velocity and turbulence structures near streambeds may control solute transport
and dispersion in streams. In this study, pore-scale flow and transport simulations are …

We study the upscaling of advective pore-scale dispersion in terms of the Eulerian velocity
distribution and advective tortuosity, both flow attributes, and of the average pore length, a …

Channel meanders in rivers induce complex three-dimensional (3D) flow characteristics
such as secondary flows and flow recirculation. Helical secondary flows promote transverse …

High degrees of spatial heterogeneity in hydrologic systems pose a major barrier for their
protection and remediation. Dissolved and particulate contaminants are mixed and retained …

Fluid inertia is known to exert a dominant control over transport processes in fracture flows.
In particular, recirculating flows readily arise in inertial rough fracture flows and have been …

Biogeochemical reactions take place when reactants are present at the same location and
time, which occurs through pore-scale mixing. Although the degree of mixing should be …

Abstract The Spatial Markov Model (SMM) is an upscaled model with a strong track record in
predicting upscaled behavior of conservative solute transport across hydrologic systems …

The spatial distribution of a scalar undergoing advection and diffusion is impacted by the
velocity variability sampled by tracer particles. In spatially structured velocity fields, such as …