I’m a beginner in fluid-structure interaction, and I’m currently trying to couple OpenFOAM and CalculiX for a cylinder flow-induced vibration test. I’m using an unstructured mesh in the fluid domain, with 744 faces at the fluid-structure interface, and 496 faces on the solid side at the interface. During the actual calculation, I found that at certain moments there are mapping issues, which cause the computation to stall. I’m not sure what can be adjusted, so I want to ask for some advice from everyone.
Message about the stuck position：
GAMG: Solving for p, Initial residual = 0.001481631, Final residual =0.0001140, No Iterations 1
time step continuity errors : sum local = 7.43153e-07, global = -2.507e-09, cumulative = -9.1239e-06
GAMG: Solving for p, Initial residual = 0.0161831, Final residual = 0.0014614, No Iterations 1
GAMG: Solving for p, Initial residual = 0.00438182, Final residual = 0.000184, No Iterations 2
GAMG: Solving for p, Initial residual = 0.00147957, Final residual = 0.000113, No Iterations 1
time step continuity errors : sum local = 7.449812e-07, global = -2.5008e-09, cumulative = -9.126e-06
ExecutionTime = 642.72 s ClockTime = 1817 s
-–[precice] [ Mapping “Force” for t=2.65 from “Fluid-Mesh-Faces” to “Solid-Mesh”
The file and case for coupling:
Acylinder.zip (5.8 MB)
precice-config.xml (2.5 KB)