AnDFN, Analytical Discrete Fracture Network

Introduction

AnDFN is a computer program for the modelling of groundwater flow in a discrete fracture network (DFN). The program is based on the Analytic Element Method (AEM) and is distributed as a Python package with various modules and scripts.

The documentation for AnDFN is available here.

Installation

AnDFN can be installed from PyPi.

Installation:

pip install andfn

Update:

pip install andfn --upgrade

Uninstall

pip uninstall andfn

Dependencies

andfn has the following required dependencies:

• numpy
• pandas
• scipy
• pyvista
• numba
• h5py

and the following optional dependencies:

• pyyaml (for using the YAML configuration file)
• matplotlib (for some optional plots)

Functionality

AnDFN currently have the following functionality:

• Generate random DFN
• Compute the intersections of a DFN
• Solve the AEM model for a DFN
• Plot the flow net for the AEM model
• Import DFNs
• Load and save DFNs

Getting started

A template for a simple AnDFN model and several examples are available in the examples folder (under development).

Citation

The basic theory for this program is published in:

Otto D.L. Strack, Erik A.L. Toller, An analytic element model for flow in fractured impermeable rock, Journal of Hydrology, 2024, 131983, ISSN 0022-1694, https://doi.org/10.1016/j.jhydrol.2024.131983.

Acknowledgements

The original development of this code was funded by BeFo (Stiftelsen Bergteknisk Forskning) grant number 529.