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-   -   [mesh manipulation] Multiple overlapping meshes (https://www.cfd-online.com/Forums/openfoam-meshing/173954-multiple-overlapping-meshes.html)

koala June 30, 2016 11:25

Multiple overlapping meshes
 
Hi,

I'm trying to create a mesh which consists of a global mesh and some smaller meshes. So lets say I have the global mesh (via blockMesh created) M and this mesh is divided into smaller meshes A,B,C,D via splitMeshRegions after creating cellSets and cellZones with setsToZones.

Now I have the global mesh M and the smaller meshes A,B,C,D where different equations are solved and mapped between those meshes. Now I want to create another small mesh E which contains the regions of mesh B and C to solve an other type of equation there.

If I want to create such a mesh using cellSets/cellZones and splitMeshRegions (containing the regions of B and C) I get the error:

Code:

--> FOAM FATAL ERROR:
Cell 460000 with cell centre (0.0005 0.00025 0.005289) is multiple zones. This is not allowed.

Is there a possibility to create such a mesh setup? I don't really understand the error message because the cells which are present in the global mesh M are also present in the smaller meshes A,B,C,D.

Thanks in advance for your help!

jiatangwang February 1, 2017 05:53

have u soleved your problem?
 
Quote:

Originally Posted by koala (Post 607457)
Hi,

I'm trying to create a mesh which consists of a global mesh and some smaller meshes. So lets say I have the global mesh (via blockMesh created) M and this mesh is divided into smaller meshes A,B,C,D via splitMeshRegions after creating cellSets and cellZones with setsToZones.

Now I have the global mesh M and the smaller meshes A,B,C,D where different equations are solved and mapped between those meshes. Now I want to create another small mesh E which contains the regions of mesh B and C to solve an other type of equation there.

If I want to create such a mesh using cellSets/cellZones and splitMeshRegions (containing the regions of B and C) I get the error:

Code:

--> FOAM FATAL ERROR:
Cell 460000 with cell centre (0.0005 0.00025 0.005289) is multiple zones. This is not allowed.

Is there a possibility to create such a mesh setup? I don't really understand the error message because the cells which are present in the global mesh M are also present in the smaller meshes A,B,C,D.

Thanks in advance for your help!

hello koala,

Have you found the solutions for " want to create another small mesh E which contains the regions of mesh B and C to solve an other type of equation there.
"?
I am facing a same problem. Hope get suggestion from you.

Jiatang


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