[blockMesh] blockMesh | MergePatchPairs | snappyHexMesh |Different number of cells in divisions

pythag0ra5 · October 25, 2013, 12:49

Hi there,

i have a question concerning blockMesh, especcially the mergePatchPair-section. I would like to create 2 blocks (block I and block II) as you can see in the image below. One can see, that these blocks should have different numbers of cells in the y-direction.

If i run blockMesh, i receive my desired mesh. But if i run snappyHexMesh afterwards, i receive an error like:

Code:

--> FOAM FATAL ERROR:
cell 934000 of level 0 uses more than 8 points of equal or lower level
Points so far:8(473280 473470 473660 511470 511660 511850 985911 985971)

If i modify the blocks in blockMesh so that block I and II has the same number in the y-direction, either blockMesh and snappyHexMesh produces a mesh.

Do you have any hints for me in order to obtain my desired mesh (in snappyHexMesh)?

Best regards!

HosseinB · September 19, 2020, 15:38

I am having the same issue. Did you find an answer to this?

Thanks

October 25, 2013, 12:49	blockMesh \| MergePatchPairs \| snappyHexMesh \|Different number of cells in divisions	#1
pythag0ra5 Member Join Date: Oct 2012 Posts: 32 Rep Power: 14	Hi there, i have a question concerning blockMesh, especcially the mergePatchPair-section. I would like to create 2 blocks (block I and block II) as you can see in the image below. One can see, that these blocks should have different numbers of cells in the y-direction. If i run blockMesh, i receive my desired mesh. But if i run snappyHexMesh afterwards, i receive an error like: Code: --> FOAM FATAL ERROR: cell 934000 of level 0 uses more than 8 points of equal or lower level Points so far:8(473280 473470 473660 511470 511660 511850 985911 985971) If i modify the blocks in blockMesh so that block I and II has the same number in the y-direction, either blockMesh and snappyHexMesh produces a mesh. Do you have any hints for me in order to obtain my desired mesh (in snappyHexMesh)? Best regards!

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September 19, 2020, 15:38		#2
HosseinB Member Join Date: Apr 2015 Posts: 42 Rep Power: 11	I am having the same issue. Did you find an answer to this? Thanks