An example of using a Salome meshed unv file with OpenFOAM. This simuation simple runs an example of a valve in a pipe, something similar to a butterfly valve. The inlet and outlet of the pipes have no flow velocity and this just runs a very simple case.
This was tested with an AMD64 processor (32 gigs RAM) on Xubuntu 18.04 LTS with OpenFOAM v18.06. Make sure you have at least a terabyte of disk space to run this because the results are about 200 MB per (output) timestep per processor.
Open meshing.hdf (after extracting meshing.hdf.7z.001 with 7zip) in Salome.Export stator mesh as stator.unv into fine_valve/stator Export rotor mesh as rotor.unv into fine_valve/rotor
start command line in fine_valve/
follow the steps
$ cd rotor
/rotor$ ideasUnvToFoam rotor.unv
$ cd ../stator
/stator$ ideasUnvToFoam stator.unv
/stator$ cd ../
$ mergeMeshes -overwrite stator rotor
$ cd rotor
/rotor$ checkMesh
$ cd ../stator
/stator$ checkMesh
/stator$ setSet
Command>cellZoneSet rotor new setToCellZone region1
Command>quit
/stator$ topoSet
In your stator/constant/polyMesh/boundary file make sure AMI patches look like
AMI2
{
type cyclicAMI;//This needs to be changed.
neighbourPatch AMI1;//This needs to be added.
nFaces 9774;
startFace 4088405;
}
AMI1
{
type cyclicAMI;//This needs to be changed.
neighbourPatch AMI2;//This needs to be added.
nFaces 10160;
startFace 4098179;
}
/stator$ decomposePar
/stator$ mpiexec -np 2 renumberMesh -overwrite -parallel
In your parallel processor files ( e.g. processor1/constant/polyMesh/boundary) the polyMesh boundary files need to look like this for patches wall and valve.
wall { type wall;//this will cause an error if it's not wall
nFaces 0;
startFace 555107;
}
valve { type wall;//this will cause an error if it's not wall
nFaces 15752;
startFace 566002;
}
/stator$ mpiexec -np 2 pimpleFoam -parallel | tee log .pimpleFoam
The simulation should now run....