Hi Peter,raback wrote:Hi
You could perhaps sent the case for inspection. It should not be so much more difficult from the Boussinesq case.
-Peter
I'm not really sure how, but I was able to get ILU preconditioning to work. I typically set up my models in ElmerGUI and then run things from the command line. I think ElmerGUI had some trouble after I made copies of the project files and started experimenting with different meshes. After copying the project files and opening them in the GUI, a different sif file would generate. Some, but not all settings would carry over. Loading in different meshes in the GUI without setting up a new project file seemed to have caused problems as well even after the sif file was corrected.
Anyways, I started the project from scratch and was able to get convergence in my first go.
Here are the results. These seem to be close enough. I have attached all the project files so that, if you wish, you can inspect it. Hopefully this helps others as well.