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 …

We study how the interplay between fracture aperture heterogeneity and tracer injection
mode controls fluid flow and tracer transport in three‐dimensional (3D) discrete fracture …

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 …

Microplastics and antibiotics are emerging pollutants in the environment and have received
widespread attention globally. In coastal areas, microplastic and antibiotic pollution is …

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 …

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

The topology of natural fracture networks is inherently linked to the structure of the fluid
velocity field and transport therein. Here we study the impact of network density on flow and …

We study how the complex interplay between channel roughness, inertia, and diffusion
controls tracer transport in rough channel flows. We first simulate flow and tracer transport …

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 …