I’m using openfoam’s overset mesh solver “overPimpleDyMFoam” to achieve fluid-structure coupling of horizontal plates in a flow field.
Simulation environment ：
My case is this: the head of the horizontal plate moves up and down actively, and the tail of the plate can swing freely in the flow field
The grid file looks like this:
At the initial time step, time=0, the coordinates of the fluid-structure interface point look correct, and precice found the correct node coordinates.
However, after running for a period of time, the displacement and force mapping of several nodes at the fluid-structure coupling interface are not correct.For example, on iteration of 50:
Several nodes at the interface flew away.
This is the fluid grid at the 50th time step:
Fluid and solid mesh:
Fluid and Solid interface point：
Any idea how to understand this problem?
I have attached the convergence information of my displacement and force, the convergence at the interface is good, it seems to be OK.
precice-Solid-convergence.log (31.4 KB)
precice-Solid-iterations.log (6.5 KB)
At the same time, I also inquired several related questions in the forum:
It looks like I should try mapping:rbf-compact-tps-c2?
Result of time step 50:
solid-fluid-dt50.zip (10.4 KB)
Hello everyone, this example was successfully run on another computer with the following configuration:
- OpenFOAM: v2212
- CalculiX: 2.20
- solver-interface dimensions=“2”
Just change the version, RBF function mapping is fine. That’s a strange question!
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