11 to 19 of 19 Results
The aim of the project is to provide technical and numerical methods for the coupling of free flow and porous-media flow at the REV (representative elementary volume) scale. This involves the development of sophisticated methods in three basic coupling components: (i) iterative s... |
Mar 11, 2021 - C02: Upscaling of pore-scale processes involving microstructural evolution
Freiherr von Wolff, Lars, 2021, "The DUNE-Phasefield Module (release 1.0)", https://doi.org/10.18419/darus-1634, DaRUS, V1
The DUNE-Phasefield module contains local operators and grid function spaces for solving Cahn-Hilliard and Cahn-Hilliard-Navier-Stokes systems in a FEM framework. The module additionally provides option-classes for physical properties, multiple Cahn-Hilliard potentials, a timeste... |
Processes like multi-phase flow and reactive transport in porous media are encountered in many engineering applications. Such processes occur and interact on different scales and in complex domains. Particularly challenging is the case when evolving interfaces are encountered on... |
Feb 25, 2021 - Upscaled equations for two-phase flow in highly heterogeneous porous media: Varying permeability and porosity
Bringedal, Carina, 2021, "Data and code for Upscaled equations for two-phase flow in highly heterogeneous porous media: Varying permeability and porosity", https://doi.org/10.18419/darus-1376, DaRUS, V1
This dataset contains the code and simulation results for the paper "Upscaled equations for two-phase flow in highly heterogeneous porous media: Varying permeability and porosity" by Tufan Ghosh, Carina Bringedal, Rainer Helmig and G. P. Raja Sekhar. Based on a layered permeabili... |
Drying and evaporation in porous media is relevant for many engineering processes and for soil cultivation. These processes occur over several scales, where the evolving liquid-gas interface is important to describe the evaporation at the pore scale, while its effect lies on the... |
Feb 5, 2021 - B03: Heterogeneous multi-scale methods for two-phase flow in dynamically fracturing porous media
Burbulla, Samuel, 2021, "The DUNE MMesh Module (Release 1.2)", https://doi.org/10.18419/darus-1257, DaRUS, V1
The dune-mmesh module is an implementation of the DUNE grid interface that wraps CGAL triangulations in 2D and 3D. It is also capable to export a prescribed set of cell facets as a dim-1 interface grid and remesh the grid when moving this interface. |
The propagation and bifurcation of fractures in fluid-filled porous media depends on the likewise inter-related flow in the pore space and on the mechanical displacement field in the solid matrix. Assuming that fractures cannot be homogenised but persist on a continuum-mechanical... |
Exchange processes across a porous-medium free-flow interface occur in a wide range of environmental, technical and bio-mechanical systems. The primary objectives of this project are to (i) analyse and improve the theory, as well as (ii) offer solution methods for non-isothermal,... |
