Elastic tube 3D

Hi all,

i tried running elastic tube 3D locally with calculix and OpenFoam.
Everything works. What puzzles me is that results https://precice.org/tutorials-elastic-tube-3d.html are rather different from those reported by Valdez PhD [1] for the same case, see Figure 5.28. The difference is in two order of magnitude by eye-balling measure.
As far as i can see, everything is the same in terms of material properties.
It could be that the geometry is different, but this would be surprising.

This case is used in many publications on QN, but i have not found anything but [1] where values at certain point would be plotted.

• Tutorials state (last commit / release): v202211
• Versions used:
  • openfoam@2206
  • precice@2.5.0 build_type=Debug
  • of-precice@1.2.2
  • calculix@2.20

[1] https://upcommons.upc.edu/bitstream/handle/2117/94177/01JGVV01de01.pdf;sequence=1

EDIT 2023-07-13: looking at fenics python code, the geometry should be the same as elsewhere:

R = 0.005
L = 0.05

Start with the elastic tube 3D tutorial at precice.org/tutorials-elastic-tube-3d.html and reproduce the reported comparison using OpenFOAM 2206, preCICE 2.5.0, of-precice 1.2.2, and CalculiX 2.20. Compare the geometry values R=0.005 and L=0.05 with Valdez's Figure 5.28; done means identifying and documenting the source of the differing results.