Towards understanding factors affecting arsenic, chromium, and vanadium mobility in the subsurface
Arsenic (As), chromium (Cr), and vanadium (V) are naturally occurring, redox-active
elements that can become human health hazards when they are released from aquifer …
elements that can become human health hazards when they are released from aquifer …
Modeling bimolecular reactions and transport in porous media via particle tracking
We use a particle-tracking method to simulate several one-dimensional bimolecular reactive
transport experiments. In our numerical scheme, the reactants are represented by particles …
transport experiments. In our numerical scheme, the reactants are represented by particles …
Connecting the dots: Semi-analytical and random walk numerical solutions of the diffusion–reaction equation with stochastic initial conditions
We study a system with bimolecular irreversible kinetic reaction A+ B→∅ where the
underlying transport of reactants is governed by diffusion, and the local reaction term is …
underlying transport of reactants is governed by diffusion, and the local reaction term is …
Elimination of the reaction rate “scale effect”: Application of the Lagrangian reactive particle‐tracking method to simulate mixing‐limited, field‐scale biodegradation at …
Measured (or empirically fitted) reaction rates at groundwater remediation sites are typically
much lower than those found in the same material at the batch or laboratory scale. The …
much lower than those found in the same material at the batch or laboratory scale. The …
Particle tracking and the diffusion‐reaction equation
Particle tracking algorithms are very useful methods to model conservative transport in
surface and subsurface hydrological systems. Recently, a novel ad hoc particle‐based …
surface and subsurface hydrological systems. Recently, a novel ad hoc particle‐based …
Trait-specific dispersal of bacteria in heterogeneous porous environments: from pore to porous medium scale
The dispersal of organisms controls the structure and dynamics of populations and
communities, and can regulate ecosystem functioning. Predicting dispersal patterns across …
communities, and can regulate ecosystem functioning. Predicting dispersal patterns across …
A particle number conserving L agrangian method for mixing‐driven reactive transport
The purely Lagrangian algorithm for chemical reactions introduced by Benson and
Meerschaert (2008) suffers from a low‐concentration resolution problem. We alleviate the …
Meerschaert (2008) suffers from a low‐concentration resolution problem. We alleviate the …
On the separate treatment of mixing and spreading by the reactive-particle-tracking algorithm: An example of accurate upscaling of reactive Poiseuille flow
The Eulerian advection-dispersion-reaction equation (ADRE) suffers the well-known scale-
effect of reduced apparent reaction rates between chemically dissimilar fluids at larger …
effect of reduced apparent reaction rates between chemically dissimilar fluids at larger …
Numerical investigation of pore and continuum scale formulations of bimolecular reactive transport in porous media
Focus of this study is a numerical investigation of a reactive transport problem involving an
irreversible bimolecular reaction. The advection dispersion reaction equation (ADRE) is …
irreversible bimolecular reaction. The advection dispersion reaction equation (ADRE) is …
Effects of incomplete mixing on reactive transport in flows through heterogeneous porous media
EE Wright, DH Richter, D Bolster - Physical Review Fluids, 2017 - APS
The phenomenon of incomplete mixing reduces bulk effective reaction rates in reactive
transport. Many existing models do not account for these effects, resulting in the …
transport. Many existing models do not account for these effects, resulting in the …