DFN.lab

A software platform for DFN modelling

"Fractures matter"

 

DFN.lab is a modular computational suite to deal with three-dimensional Discrete Fracture Network (DFN) models from generation to simulation and analysis of connectivity, flow, mechanical and transport properties. Core modules are developed in C++ for high performances and a Python API is provided for easy use.

Features

DFN Generation

Generate Discrete Frature Network with statistical or genetic rules

Analysis

Provide a full range of analysis from  density to spatial organization

Fracture mechanics

Linear elastic properties in and out of fractures

Particle Tracking

Advective transport of particles

Flow

Steady-state and transient flow

Get DFN.lab

Join the community

Read the documentation

Publications

Ascione, S., Lester, D. R., Pinier, B., Le Borgne, T., & Heyman, J. (2026). Cutting and shuffling control mixing in three-dimensional discrete fracture networks. Journal of Fluid Mechanics, 1036, A64. https://doi.org/10.1017/jfm.2026.11623

Darcel, C., Courtois, Q., Svensson, U., Le Goc, R., Pinier, B., Selroos, J.-O., & Davy, P. (2026). Transformation of discrete fracture networks into equivalent continuum models for sparsely fractured rocks: comparing flow-based and geometry-based upscaling for flow and transport. Frontiers in Nuclear Engineering, 5, 1760157. https://doi.org/10.3389/fnuen.2026.1760157

Courtois, Q., Darcel, C., Le Goc, R., Davy, P., Mas Ivars, D., & Sykes, E. (2025). Impact of Tunnel Induced Stress Redistribution on Hydraulic Conductivity in Fractured Rocks. ISRM International Symposium – EUROCK 2025, Trondheim, Norway. Conference paper

Davy, P., Le Goc, R., Darcel, C., Pinier, B., Selroos, J.-O., & Le Borgne, T. (2024). Structural and hydrodynamic controls on fluid travel time distributions across fracture networks. Proceedings of the National Academy of Sciences, 121(47), e2414901121. https://doi.org/10.1073/pnas.2414901121

Darcel, C., Le Goc, R., Lavoine, E., Davy, P., Mas Ivars, D., Sykes, E., & Kasani, H. A. (2024). Coupling stress and transmissivity to define equivalent directional hydraulic conductivity of fractured rocks. Engineering Geology, 342, 107739. https://doi.org/10.1016/j.enggeo.2024.107739

De Simone, S., Darcel, C., Kasani, H. A., Mas Ivars, D., & Davy, P. (2024). The Impact of Size-Dependent and Stress-Dependent Fracture Properties on the Biot and Skempton Coefficients of Fractured Rocks. Rock Mechanics and Rock Engineering, 57, 8929–8950. https://doi.org/10.1007/s00603-024-04038-7

Lavoine, E., Davy, P., Darcel, C., Mas Ivars, D., & Kasani, H. A. (2024). Assessing Stress Variability in Fractured Rock Masses with Frictional Properties and Power Law Fracture Size Distributions. Rock Mechanics and Rock Engineering, 57, 2407–2420. https://doi.org/10.1007/s00603-023-03683-8

De Simone, S., Darcel, C., Kasani, H. A., Mas Ivars, D., & Davy, P. (2023). Equivalent Biot and Skempton Poroelastic Coefficients for a Fractured Rock Mass from a DFN Approach. Rock Mechanics and Rock Engineering, 56, 8907–8925. https://doi.org/10.1007/s00603-023-03515-9

Doolaeghe, D., Darcel, C., Selroos, J.-O., Mas Ivars, D., & Davy, P. (2023). Controls on fracture openness and reactivation in Forsmark, Sweden. Scientific Reports, 13, 6686. https://doi.org/10.1038/s41598-023-33619-9

Davy, P., Le Goc, R., Darcel, C., & Selroos, J.-O. (2023). Scaling of fractured rock flow. Proposition of indicators for selection of DFN based flow models. Comptes Rendus Géoscience, 355, 667–690. https://doi.org/10.5802/crgeos.174

Le Goc, R., Darcel, C., Davy, P., & Selroos, J.-O. (2022). Analysis of the Characteristics of Particle Trajectories in DFN and Consequences on Travel Time Distributions. 3rd International Discrete Fracture Network Engineering Conference, Santa Fe, USA. https://doi.org/10.56952/ARMA-DFNE-22-0048

Furtney, J. K., Thielsen, C., Fu, W., & Le Goc, R. (2022). Surrogate Models in Rock and Soil Mechanics: Integrating Numerical Modeling and Machine Learning. Rock Mechanics and Rock Engineering, 55, 2845–2859. https://doi.org/10.1007/s00603-021-02720-8

De Simone, S., Pinier, B., Bour, O., & Davy, P. (2021). A particle-tracking formulation of advective–diffusive heat transport in deformable fracture networks. Journal of Hydrology, 603, 127157. https://doi.org/10.1016/j.jhydrol.2021.127157

Lavoine, E., Davy, P., Darcel, C., & Mas Ivars, D. (2021). An Analysis of Fracture Network Intersections from DFN Models and Data: Density Distribution, Topology, and Stereology. 3rd International Discrete Fracture Network Engineering Conference, DFNE21-2351, Houston, USA. Conference paper

Doolaeghe, D., Davy, P., Darcel, C., Le Goc, R., & Hyman, J. D. (2021). Assessing Multiscale Discrete Fracture Network Flow with Graphs. 3rd International Discrete Fracture Network Engineering Conference (DFNE21). Conference paper

Doolaeghe, D., Davy, P., Hyman, J. D., & Darcel, C. (2020). Graph-based flow modeling approach adapted to multiscale discrete-fracture-network models. Physical Review E, 102(5), 053312. https://doi.org/10.1103/PhysRevE.102.053312

Lavoine, E., Davy, P., Darcel, C., & Munier, R. (2020). A Discrete Fracture Network Model With Stress-Driven Nucleation: Impact on Clustering, Connectivity, and Topology. Frontiers in Physics, 8, 9. https://doi.org/10.3389/fphy.2020.00009

Le Goc, R., Pinier, B., Darcel, C., Lavoine, E., Doolaeghe, D., De Simone, S., de Dreuzy, J.-R., & Davy, P. (2019). DFN.lab: Software platform for Discrete Fracture Network models. AGU Fall Meeting 2019, San Francisco, USA, H41H-1778. Conference poster

Lavoine, E., Davy, P., Darcel, C., & Le Goc, R. (2019). On the Density Variability of Poissonian Discrete Fracture Networks, with application to power-law fracture size distributions. Advances in Geosciences, 49, 77–83. https://doi.org/10.5194/adgeo-49-77-2019

Davy, P., Darcel, C., Le Goc, R., & Mas Ivars, D. (2018). Elastic Properties of Fractured Rock Masses With Frictional Properties and Power Law Fracture Size Distributions. Journal of Geophysical Research: Solid Earth, 123(8), 6521–6539. https://doi.org/10.1029/2017JB015329

Darcel, C., Davy, P., Le Goc, R., & Mas Ivars, D. (2018). Rock mass effective properties from a DFN approach. 2nd International Discrete Fracture Network Engineering Conference, DFNE2018-780, Seattle, USA. Conference paper

Davy, P., Darcel, C., Le Goc, R., Munier, R., Selroos, J.-O., & Mas Ivars, D. (2018). DFN, Why, How and What For, Concepts, Theories and Issues. 2nd International Discrete Fracture Network Engineering Conference, DFNE2018-310, Seattle, USA. Conference paper

Le Goc, R., Davy, P., Darcel, C., & Selroos, J.-O. (2018). Discrimination of Discrete Fracture Network models using structural and flow data. 2nd International Discrete Fracture Network Engineering Conference, DFNE2018-139, Seattle, USA. Conference paper

Tutorials

Learn how to use DFN.lab with these step by step tutorials

Python and DFN.Lab

Create domain

Tunnels & wells

Create deterministic fractures and DFNs

Input and output DFN files

Stochastic DFN generation

Genetic DFN generation

Hydraulic boundary conditions

Transmissivity generation

Identifying connected structures

Meshing DFNs

Solving flow (steady state)

Solving flow with graphs

Particle tracking

Fracture domains and deformation zones

Solving Transient Flow

Team

Discover the DFN.lab team

Romain Le Goc

ITASCA Research Engineer

Caroline Darcel

ITASCA Project Manager

Philippe Davy

CNRS Research Director

Benoit Pinier

ITASCA Research Engineer

Discover the Fractory