From fluid flow to coupled processes in fractured rock: Recent advances and new frontiers

HS Viswanathan, J Ajo‐Franklin… - Reviews of …, 2022 - Wiley Online Library
Quantitative predictions of natural and induced phenomena in fractured rock is one of the
great challenges in the Earth and Energy Sciences with far‐reaching economic and …

Influence of fracture scale heterogeneity on the flow properties of three‐dimensional discrete fracture networks (DFN)

JR De Dreuzy, Y Méheust… - Journal of Geophysical …, 2012 - Wiley Online Library
While permeability scaling of fractured media has been so far studied independently at the
fracture‐and network‐scales, we propose a numerical analysis of the combined effect of …

Fracture size and transmissivity correlations: Implications for transport simulations in sparse three‐dimensional discrete fracture networks following a truncated power …

JD Hyman, G Aldrich, H Viswanathan… - Water Resources …, 2016 - Wiley Online Library
We characterize how different fracture size‐transmissivity relationships influence flow and
transport simulations through sparse three‐dimensional discrete fracture networks. Although …

A comparative study of discrete fracture network and equivalent continuum models for simulating flow and transport in the far field of a hypothetical nuclear waste …

T Hadgu, S Karra, E Kalinina, N Makedonska… - Journal of …, 2017 - Elsevier
One of the major challenges of simulating flow and transport in the far field of a geologic
repository in crystalline host rock is related to reproducing the properties of the fracture …

Continuous time random walks for the evolution of Lagrangian velocities

M Dentz, PK Kang, A Comolli, T Le Borgne… - Physical Review Fluids, 2016 - APS
We develop a continuous time random walk (CTRW) approach for the evolution of
Lagrangian velocities in steady heterogeneous flows based on a stochastic relaxation …

Evaluating the effect of internal aperture variability on transport in kilometer scale discrete fracture networks

N Makedonska, JD Hyman, S Karra, SL Painter… - Advances in Water …, 2016 - Elsevier
The apertures of natural fractures in fractured rock are highly heterogeneous. However, in-
fracture aperture variability is often neglected in flow and transport modeling and individual …

Linking structural and transport properties in three‐dimensional fracture networks

JD Hyman, M Dentz, A Hagberg… - Journal of Geophysical …, 2019 - Wiley Online Library
We investigate large‐scale particle motion and solute breakthrough in sparse three‐
dimensional discrete fracture networks characterized by power law distributed fracture …

Influence of injection mode on transport properties in kilometer‐scale three‐dimensional discrete fracture networks

JD Hyman, SL Painter, H Viswanathan… - Water Resources …, 2015 - Wiley Online Library
We investigate how the choice of injection mode impacts transport properties in kilometer‐
scale three‐dimensional discrete fracture networks (DFN). The choice of injection mode …

Scale‐bridging in three‐dimensional fracture networks: Characterizing the effects of variable fracture apertures on network‐scale flow channelization

JD Hyman, MR Sweeney, LP Frash… - Geophysical …, 2021 - Wiley Online Library
We incorporate observations of real fracture aperture variability observed in laboratory
experiments into an ensemble of three‐dimensional discrete fracture network (DFN) …

Anomalous transport in three‐dimensional discrete fracture networks: Interplay between aperture heterogeneity and injection modes

PK Kang, JD Hyman, WS Han… - Water Resources …, 2020 - Wiley Online Library
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 …