@@ -131,7 +131,7 @@ Furthermore, modify the function `dirichletAtPos(...)` in `matrixproblem.hh` suc
In this part, we want to change the parameterization of the fractures such that they act as both hydraulic and capillary barriers. In the `fracturespatialparams.hh` file you will see that the spatial parameters class already contains a set of parameters with the post-fix _Barrier_, which are read in from the input file in the class constructor.
Use these as return values for porosity, permeability and material law parameters. Take a look at the results.
Use these as return values for porosity, permeability and fluid-matrix interaction parameters. Take a look at the results.
You will see that only little nitrogen enters the domain, but if you display the pressure distribution in the matrix, you will notice that we cannot observe the pressure distribution we would expect. With the fracture permeabilities being this much lower than the matrix permeability, we would expect substantial pressure drops to be visible across them.
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@@ -193,7 +193,7 @@ int getElementDomainMarker(const Element& element) const
The domain markers are also already added to the output (see `main.cc`, search for `// add domain markers to output`). To visualize them, open any of your previously produced results with _Paraview_ and take a look at them by selecting __domainMarker__.
Adjust the functions for permeability, porosity and material law parameters in the `fracturespatialparams.hh` file such that they are selected depending on the domain marker of the elements. You will see in the results that the pressure jump across the first vertical fracture is now lower than before, because there are highly permeable fractures crossing it, allowing for a pressure release into the other parts of the domain.
Adjust the functions for permeability, porosity and fluid-matrix interaction parameters in the `fracturespatialparams.hh` file such that they are selected depending on the domain marker of the elements. You will see in the results that the pressure jump across the first vertical fracture is now lower than before, because there are highly permeable fractures crossing it, allowing for a pressure release into the other parts of the domain.