[blockMesh] merge blocks

ancolli · May 13, 2016, 08:58

Is there a way to merge blocks (consisting of several other blocks) with blockMesh? I have a cilinder (5 blocks) and I want to merge to a square (consiting of 3 blocks).
Thank u

cutter · November 28, 2016, 12:54

Hi,

please read http://www.cfd-online.com/Forums/ope...-get-help.html and provide a minimal example (blockMeshDict and especially a sketch of the expected result) that allows to reproduce the problem in order to maximize your chances to get useful help.

There's probably no functionality in blockMesh that merges meshes in the desired way. The mesher blockMesh creates block structured meshes. The mesh interfaces between neighboring blocks need to match. You therefore need to restructure your mesh and create a correct transition between the two parts.

Another alternative is the usage of AMI to connect two subdomains by interpolation (outside the scope of blockMesh).

Cutter

May 13, 2016, 08:58	merge blocks	#1
ancolli Senior Member Alejandro Join Date: Jan 2014 Location: Argentina Posts: 128 Rep Power: 12	Is there a way to merge blocks (consisting of several other blocks) with blockMesh? I have a cilinder (5 blocks) and I want to merge to a square (consiting of 3 blocks). Thank u

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November 28, 2016, 12:54		#2
cutter Senior Member Join Date: Mar 2010 Location: Germany Posts: 154 Rep Power: 16	Hi, please read http://www.cfd-online.com/Forums/ope...-get-help.html and provide a minimal example (blockMeshDict and especially a sketch of the expected result) that allows to reproduce the problem in order to maximize your chances to get useful help. There's probably no functionality in blockMesh that merges meshes in the desired way. The mesher blockMesh creates block structured meshes. The mesh interfaces between neighboring blocks need to match. You therefore need to restructure your mesh and create a correct transition between the two parts. Another alternative is the usage of AMI to connect two subdomains by interpolation (outside the scope of blockMesh). Cutter