Commit 5fd921b7 authored by Kilian Weishaupt's avatar Kilian Weishaupt
Browse files

[ex-coupling-ff-pm] fix typo

parent 6652c0e8
......@@ -340,18 +340,24 @@ bool isOnWall(const GlobalPosition& globalPos) const
In addition, especially for the zero-equation models, any element in the free-flow domain interacts with the walls,
e.g. this defines the wall distance which is needed to calculate the eddy viscosity.
To get all these interactions, you have to call `stokesProblem->updateStaticWallProperties()`
To get all these interactions, you have to call
```cpp
stokesProblem->updateStaticWallProperties()
```
in `ex_turbulence_coupling_ff-pm.cc`.
However, there is also a solution-dependent component of these interactions, e.g. for a correct
damping of the eddy viscosity toward the wall, the velocity gradient at the wall and inside the
cells is needed.
These dynamic interactions are to be updated by calling `stokesProblem->updateDynamicWallProperties(stokesSol)`
These dynamic interactions are to be updated by calling
```cpp
stokesProblem->updateDynamicWallProperties(stokesSol)
```
in the time loop (after `// update dynamic wall properties`).
Compile and run your new coupled problem and take a look at the results in Paraview.
In addition to the standard variables and parameters, you can now analyze turbulence model specific quantities
(e.g. the turbulent viscosity `nu_\textrm{t}` or the turbulent diffusivity `D_\textrm{t}`) for the free flow domain.
In paraview you may compare the magnitude of `D` and `D_\textrm{t}` to see where the transport is affected by turbulence.
(e.g. the turbulent viscosity $`\nu_\textrm{t}`$ or the turbulent diffusivity $`D_\textrm{t}`$) for the free flow domain.
In paraview you may compare the magnitude of $`D`$ and $`D_\textrm{t}`$ to see where the transport is affected by turbulence.
The result for the turbulent viscosity should look like this:
![](../extradoc/ex_ff-pm-turb_diffusivity.png)
......
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