Section: New Software and Platforms

NEF-Flow

Keywords: Hydrogeology - Numerical simulations - 3D

Scientific Description: NEF-Flow is a Matlab software for the simulation of steady state single phase flow in Discrete Fracture Networks (DFNs) using the Mixed Hybrid Finite Element (MHFEM) method for conforming and non conforming discretizations.

Functional Description: The software NEF-Flow solves the problem of an incompressible fluid flowing through a network of fractures. The software is interfaced with different mesh generators, among which BLSURF from the GAMMA3 team. A mixed hybrid finite element method is implemented.

News Of The Year: The last version includes new feature: - wells, sink/source terms boundary conditions - Implementation of P1 non conforming finite elements - New data structures to save the information local to each fracture - New tests per fracture have been added to check the solution - Add wells and sink/sources boundary conditions in the function that check the solution.

• Participants: Géraldine Pichot, Jean-Raynald De Dreuzy and Jocelyne Erhel

• Contact: Géraldine Pichot

• Publication: A mixed hybrid Mortar method for solving flow in discrete fracture networks

• URL: https://gitlab.inria.fr/gpichot/NEF