Merge Manually Created Blocks with extruded Face Blocks

pamstad · November 12, 2019, 10:39

Hello everybody,

I have the following issue:

- I want to hex mesh a volute. As it has difficult geometry I created the blocks a follows by hand: Via the edit Mesh tab --> Create Elements, I created manually hex elements (by choosing points) where the geometry is difficult. Then via File --> Blocking-->Create from Unstruct Mesh I got my blocks.

- When I now want to create a block via extrude Face in the blocking tab, the blocks have a different color then the ones from the manual approach and a strange mesh occurs at each interface of an extruded Faceblock.

-When I want to merge for a example two blocks (one created via extrude Face and the other created from the unstructured mesh) it says: Merge Region contains more than one material.

Does anybody know where the problem is?

Thanks a lot for your help!

ghorrocks · November 12, 2019, 17:45

This sounds like basic ICEM questions. You should do the ICEM tutorials to learn the basics of this software.

Also be aware that ANSYS has a software package called Turbogrid specifically designed to generate high quality meshes on turbo machines. You might find that a better meshing application for your case.

pamstad · November 13, 2019, 01:54

Thanks Mr. Horrocks for your answer.

I have solved the problem. The problem was that the manually created blocks were added to a different part then the one I extruded.

Have a nice day!

November 12, 2019, 10:39	Merge Manually Created Blocks with extruded Face Blocks	#1
pamstad Member Join Date: Sep 2019 Posts: 33 Rep Power: 7	Hello everybody, I have the following issue: - I want to hex mesh a volute. As it has difficult geometry I created the blocks a follows by hand: Via the edit Mesh tab --> Create Elements, I created manually hex elements (by choosing points) where the geometry is difficult. Then via File --> Blocking-->Create from Unstruct Mesh I got my blocks. - When I now want to create a block via extrude Face in the blocking tab, the blocks have a different color then the ones from the manual approach and a strange mesh occurs at each interface of an extruded Faceblock. -When I want to merge for a example two blocks (one created via extrude Face and the other created from the unstructured mesh) it says: Merge Region contains more than one material. Does anybody know where the problem is? Thanks a lot for your help!

November 12, 2019, 17:45		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,870 Rep Power: 144	This sounds like basic ICEM questions. You should do the ICEM tutorials to learn the basics of this software. Also be aware that ANSYS has a software package called Turbogrid specifically designed to generate high quality meshes on turbo machines. You might find that a better meshing application for your case. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

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November 13, 2019, 01:54		#3
pamstad Member Join Date: Sep 2019 Posts: 33 Rep Power: 7	Thanks Mr. Horrocks for your answer. I have solved the problem. The problem was that the manually created blocks were added to a different part then the one I extruded. Have a nice day!