Recently I’m simulating an airfoil FSI case using OpenFOAM v7 / CalculiX v2.15 / preCICE v2.0.0.
Let’s begin with this snapshot:
This is what I have done:
- I firstly ran the OpenFOAM CFD simulation solely for 3 second of flow time to get a stable solution by removing the libpreciceAdapterFunctionObject.so from the system/controlDict.
- Then, I took this latest time step output as my initial input for the FSI case and I ran the FSI simulation.
- From the figure it can be seen that the error occurred at the 2nd iteration in the 1st coupling step.
My question is that whether this issue originated from OF side? I have checked all units in the OF and no mistakes are found.
Or, is this a potential issue during the preCICE coupling stage.
p.s. I used turbulence model in the OF side for the force predictions.
Any suggestions are very welcomed
Thanks in advance