A new numerical scheme is proposed for flow computation in complex discrete fracture networks. The method based on a three-field domain decomposition framework which independent variables are introduced at the interfaces generated process of decoupling original problem whole network into set fracture-local problems. PDE-constrained formulation then used to enforce compatibility conditions inter...

Previous studies have computed and modeled fluid flow through fractured rock with the parallel plate approach where the volumetric flow per unit width normal to the direction of flow is proportional to the cubed aperture between the plates, referred to as the traditional cubic law. When combined with the square root relationship of displacement to length scaling of opening-mode fractures, total...

The study of flow in fractured porous media is a key ingredient for many geoscience applications, such as reservoir management and geothermal energy production. Modelling simulation these highly heterogeneous geometrically complex systems require the adoption non-standard numerical schemes. Embedded Discrete Fracture Model (EDFM) simple effective way to account fractures with coarse regular gri...

Discrete models of solids have been motivated, in large part, by the discontinuous and heterogeneous nature material structure its breakdown under loading. The capabilities discrete evolved over past several decades, offering novel means for investigating structure–property relationships. However, lack understanding both utilities disadvantages limits their further development applications. Thi...

Fracture networks dominate the permeability of crystalline geothermal reservoir rocks. Insitu stress conditions have a significant impact on the flow, transport and exchange characteristics of fracture networks. Here a geomechanical model is presented which describes fracture closure under effective stress and the change in parameters such as storage, permeability, porosity and aperture. The mo...

Abstract In several applications concerning underground flow simulations in fractured media, the rock matrix is modeled by means of Discrete Fracture Network (DFN) model. The fractures are typically described through stochastic parameters sampled from known distributions. this framework, it worth considering application suitable complexity reduction techniques, also view possible uncertainty qu...

We have carried out numerical modeling studies to investigate the development of discrete-fracture flow paths and flow-focusing phenomena in the unsaturated rock of the potential repository horizon at Yucca Mountain, Nevada. These studies are based on two- and three-dimensional (2-D and 3-D) numerical models using site-specific parameters. The 2-D and 3-D models use high-resolution spatial disc...