@uekerman Pointed out in the post that I might have a similar issue as discussed here.
@uekerman I tried out the suggestions you have in the first post in this thread.
I will roughly mention the time steps at which my simulation ends.
For the following implicit coupling scheme
<coupling-scheme:serial-implicit>
<time-window-size value="1.e-3" />
<max-time value="0.5"/>
<participants first="Fluid" second="Calculix"/>
<exchange data="Forces0" mesh="Solid" from="Fluid" to="Calculix"/>
<exchange data="Displacements0" mesh="Solid" from="Calculix" to="Fluid" />
<max-iterations value="100"/>
<absolute-convergence-measure limit="1e-6" data="Displacements0" mesh="Solid"/>
<relative-convergence-measure limit="1e-2" data="Forces0" mesh="Solid"/>
<extrapolation-order value="2"/>
<acceleration:IQN-ILS>
<data name="Displacements0" mesh="Solid"/>
<preconditioner type="residual-sum"/>
<filter type="QR1" limit="1e-6"/>
<initial-relaxation value="0.01"/>
<max-used-iterations value="100"/>
<time-windows-reused value="10"/>
</acceleration:IQN-ILS>
</coupling-scheme:serial-implicit>
For this “default” set-up, my simulation runs until t=0.2
For QR-2 Filter it runs until t=0.0019
For time-windows-reused value="0" it runs for t=0.003
For <max-used-iterations value="15"/> <time-windows-reused value="0"/> it runs for t=0.0039
For <max-used-iterations value="50"/> <time-windows-reused value="0"/> it runs for t=0.0010
For convergence, measure both set to 1e-6 it runs for t=0.002.(no particular reason to choose different, just using the same as what we have in the FSI flap tutorial).
And lastly for the “default” scheme just changing from serial to parallel it runs for `t=0.0013’
After this, I tried again the settings mentioned above, but it did not improve the results.
For serial explicit coupling scheme, initially, I had <time-window-size value="1e-3"/>, with which I was able to run until t=0.28 (time of wetting).
After increasing the deltaT for preCICE to 1e-4, I am able to run the simulation until t=0.52, but as you can see the results are really bad.
Edit: Log files
file:///home/prasad/01_PhD/3_Tutorials/3_trials/0_OpenFOAM-CalculiX_interFoam/Fluid.log
file:///home/prasad/01_PhD/3_Tutorials/3_trials/0_OpenFOAM-CalculiX_interFoam/Solid.log