Section: New Results

A hybrid high-order method for flow simulations in discrete fracture networks

Participants : Florent Hédin, Géraldine Pichot, Alexandre Ern.

Figure 2. Examples of DFN: (left) B1: 19,007 fractures; (center) B2: 152,399 fractures ; (right) B3: 508,338 fractures.

In [36], we are interested in solving flow in large trimensional Discrete Fracture Networks (DFN) (cf Figure 2) with the hybrid high-order (HHO) method. The objectives of this paper are: (1) to demonstrate the benefit of using a high-order method for computing macroscopic quantities, like the equivalent permeability of fracture rocks; (2) to present the computational efficiency of our C++ software, NEF++ , which implements the solving of flow in fractures based on the HHO method.