Max Aehle

I will raise the question in the SU2 developer meeting tomorrow.

Thanks Pedro for hinting me at this coupling issue again, now I think I understand it! **For the record**, here is what I talked about in today's developer meeting: When...

> I assume that your results with explicit/implicit Euler for single zone are the same? It turns out that they are not. When I applied the above modifications (CFL: 1000...

I noticed that - the distinction between the time integration schemes (implicit Euler, explicit Euler, ...) is made in `CIntegration::Time_Integration`: Exactly one of the functions `CSolver::ImplicitEuler_Iteration`, `CSolver::ExplicitEuler_Iteration`,`ExplicitRK_Iteration`, `ClassicalRK4_Iteration` is called....

After #1435 was merged, I tried using Explicit Euler for the time discretization of both the flow and turbulent solvers again. However, the divergence problems persist. I will not continue...

No, I gave up ;) Shall I close this issue then?

Here is some **more information on the macro files** etc. that I used to run GATE in valgrind: I checked out [`pct-bug-geometry`](https://project-gitlab.ztt.hs-worms.de/pct/pct-bug-geometry) and executed the script `pct-bug-geometry/scripts/run_tests.sh`, in which the...

More details about our procedure, checks etc. can be found [here](https://project-gitlab.ztt.hs-worms.de/pct/pct-bug-geometry/-/issues/1).

Thank you for this precise description and minimal example! I think this is a "double free" problem. At some point of time, [`GateMaterialDatabase::ReadMaterialFromDBFile`](https://github.com/OpenGATE/Gate/blob/a4bf1c6ba0217ddfe5edf28d1e61e4f18b5854de/source/geometry/src/GateMaterialDatabase.cc#L152) with `materialName="Water"` is called and then the...

> If Water is not supposed to exist, we can see if the memory problem even needs fixing or if that is the solution. If `materialName` is `G4_WATER`, the function...