[Phill_G]

I am currently trying to model a single wind turbine blade for simulation, using a semi-cylinder domain with a wind-blade in the middle. Specifically, I am trying to use the two bladed Nrel VI case, for validation.

My meshing process consists of Blockmesh to create the basic topology where I specify the inner cyclic domains named A and B (to simulate the whole turbine with just half of the cylinder) with the yellow (A) and purple (B) patches as normal patches so snappyhexmesh can modify them if necessary without problems (see image)

After Snappyhexmesh -overwrite takes out the desired mesh and snaps into the blade's shape I use createpatch - overwrite to transform the A and B into cyclicAMI patches (yellow named Cycl_A and purple Cycl_B).

The problem arises when I try to use decomposePar to separate the process into many cores. Since createpatch does not modify the patches in 0 named celllevel, nsurfacelayer, pointlevel, thickness and thicknessFraction where the patch A and B are not changed to Cycl_A and Cycl_B. It gives out an error when trying to find these patches.

--> FOAM FATAL IO ERROR: 
Cannot find patchField entry for Cycl_A

file: {...}  /0/cellLevel/boundaryField from line 1411859 to line 1411883.

I can go to this directory and add the field manually, but am afraid it could affect the simulation, and when I did, it went on with the error on the other 0 files mentioned above. Is there a way to change these patches with createpatch or with another directory?

[Phill_G]

[Update] I have found out that the utility renumberMesh solves the problem. Hope it helps if you have the same problem.