The following approaches are being used for modeling fractured porous media with multiscale and multiphysics:
1)projection-based embedded discrete fracture model (pEDFM) with cell-centered finite volumes. Check DOI:10.3390/en16020928 and DOI:10.48550/arXiv.2302.10986
2) A combined eXtended Finite Element Method (XFEM) and Embedded Discrete Fracture Method (EDFM). Check DOI:10.1016/j.geoen.2023.211984 and DOI:10.1016/j.jclepro.2023.137630 and DOI:10.1002/essoar.10509306.1
3)Mixed Multiscale Finite Element Method. Check DOI:10.1029/2020WR028877 and DOI:10.1016/j.jcp.2023.112134
4)TOUGH-FLAC simulator. It links TOUGH2, an integral finite difference multiphase flow and heat transport simulator, and FLAC3D, a finite-difference geomechanical code. Check DOI:10.1016/j.compgeo.2022.105161 and DOI:10.1016/j.ijrmms.2021.104872
For a comparison of different approaches check: DOI:10.48550/arXiv.2302.10986
Which one do you prefer and why?
is there any other approach?
Both the Finite Element Method (FEM) and the Finite Volume Method (FVM) can be utilized for modeling fractured media with multiscale and multiphysics considerations.
However, the choice between FEM and FVM depends on the specific requirements of the problem and the characteristics of the fractured media being modeled. Here's a brief overview of both methods in the context of fractured media:
When modeling fractured media, FEM can handle the discontinuities caused by fractures by incorporating appropriate interface conditions or by representing the fractures explicitly within the mesh. Fracture propagation and fluid flow through fractures can be simulated by appropriately defining the constitutive relationships and boundary conditions. FEM is also capable of considering multiphysics phenomena by coupling different physical processes, such as fluid flow, mechanical deformation, heat transfer, etc., within the fractured media.
When modeling fractured media using FVM, fractures can be treated as interfaces between different control volumes, and appropriate flux conditions can be applied across these interfaces. FVM can handle complex geometries and irregular grids, making it suitable for fractured media simulations. Additionally, multiphysics phenomena can be incorporated in FVM by coupling the governing equations for different physical processes within the fractured media.
In summary, both FEM and FVM can be utilized for modeling fractured media considering multiscale and multiphysics aspects. The choice between the two methods depends on the specific requirements of the problem, the nature of the fractured media, and the expertise and preferences of the modeler.
The following approaches are being used for modeling fractured porous media with multiscale and multiphysics:
1)projection-based embedded discrete fracture model (pEDFM) with cell-centered finite volumes. Check DOI:10.3390/en16020928 and DOI:10.48550/arXiv.2302.10986
2) A combined eXtended Finite Element Method (XFEM) and Embedded Discrete Fracture Method (EDFM). Check DOI:10.1016/j.geoen.2023.211984 and DOI:10.1016/j.jclepro.2023.137630 and DOI:10.1002/essoar.10509306.1
3)Mixed Multiscale Finite Element Method. Check DOI:10.1029/2020WR028877 and DOI:10.1016/j.jcp.2023.112134
4)TOUGH-FLAC simulator. It links TOUGH2, an integral finite difference multiphase flow and heat transport simulator, and FLAC3D, a finite-difference geomechanical code. Check DOI:10.1016/j.compgeo.2022.105161 and DOI:10.1016/j.ijrmms.2021.104872
For a comparison of different approaches check: DOI:10.48550/arXiv.2302.10986
Which one do you prefer and why?
is there any other approach?
I have had very good success with FRAC3D-VS which was developed at Waterloo. Lots of models with a variety of configurations and properties.
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