[ttjs3]

Hi Foamers,

I am using 2.4-0 at the moment. I am running a simulation that requires the use of the boundary condition "cyclicAMI". It's not possible to create the mesh in such a way that the matching patches have the same number of cells.

The single phase flow case runs no problem. But I also need to inject particles into the simulation as well. Then I ran into this problem:

--> FOAM FATAL ERROR:
Particle tracking across AMI patches is only currently supported for cases where the AMI patches reside on a single processor
From function void Foam::Cloud<ParticleType>::initCloud(const bool)
in file /work/y07/y07/cse/openfoam/2.4.0/build2/OpenFOAM-2.4.0/src/lagrangian/basic/lnInclude/Cloud.C at line 59.

FOAM parallel run aborting

So I presume I would need to preserve the patches that are "cyclicAMI". I added the following line in the decomposeParDict:

preserveFaceZones (SIDE1 SIDE2);

But this doesn't actually help to preserve the patches SIDE1 and SIDE2. They are still split into different processors. And the simulation still crashes with the same error message.

I looked up different threads here. But can't really find a solution. Is there any way to preserve the two "cyclicAMI" when decomposing the mesh? Or have I missed any other options in decomposePar?

I thought of using "simple". But I need to decompose a complex mesh into over 200 partitions. "simple" doesn't seem to apply here. Any suggestions will be really appreciated. Thank you in advance.

Best Regards,
Jialin Su