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-   -   Running a rotating mesh in foam-extend 4.0 (https://www.cfd-online.com/Forums/openfoam-solving/189571-running-rotating-mesh-foam-extend-4-0-a.html)

SteppenSoul June 22, 2017 12:10

Running a rotating mesh in foam-extend 4.0
 
Hello everyone,

I developed a testing case in 2D with an stationary domain and a moving one (with a constant angular velocity). I used OpenFOAM 4.1 with the cyclicAMI boundary and pimpleDyMFoam. It works very well with a laminar simulation.

Now I'm trying to import this case into foam-extend, so I made some modifications to use cyclicGGI and it almost works. I have two problems:
  • When I run moveDynamicMesh with a 0.1 s time step, it works. But if I use 0.001 s the mesh doesn't rotate. Why the moving of the mesh depends on the time step? In OpenFOAM 4.1, it doesn't happen.
  • When I run pimpleDyMFoam the simulation crashes couse a very high courant number. But I can't modify the timestep due to the previous problem.
https://www.dropbox.com/sh/df0tjtaqz...T23o0-Eya?dl=0

The case is inside the dropbox link, if someone may check it. I will be so glad.

Best Regards!


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