Thanks for porting this case from the adapter repository. After correcting the executable name in free-flow-dumux/appl/CMakeLists.txt, I was able to run the case. The results look as expected.

Some first comments on the structure. I still want to look closer and run the case.

This is shaping out nicely!

I still have some concerns regarding:

• The installation automation. This also did not work for me: installdumux.log.
  • Similarly, the scripts in the root directory that seem to suggest a dumux-dumux combination only.
• Two small and hopefully easy to fix deviations from the naming conventions.

I had a look at it together with @Fujikawas. On my system, it still fails to install dumux due to misconfigured Kokkos, which comes, e.g., from the deal.II package (and more) on Ubuntu (unless I am overlooking something else). On a clean Ubuntu 24.04 container, it works.

For @Fujikawas, building fails with a compilation issue.

Since it works on at least one reference system, let's merge and come back once we have more information.