Fluent Meshing Multizone Problem

- December 20, 2023 at 6:05 am
  
  scabo
  Subscriber
  
  Hi, I am tryng to multizone mesh the geometry attached. The inlet has 2 parts/surfaces. I think due to this multizone and sweep both are failing. But automatic method is working. Can someone pls say how can I create multizone method in the geometry.
- December 20, 2023 at 7:33 am
  
  Keyur Kanade
  Ansys Employee
  
  Sweep works for single source and single target. In your case you have 2 source faces. You will need to use multizone. In multizone please select 2 faces at inlet and 1 face at outlet under source.
  Please go through help manual for more details
  Regards,
  Keyur
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- December 21, 2023 at 1:41 am
  
  scabo
  Subscriber
  
  Hi Sir,
  That did not work. It is showing multizone block decomposition failed
- December 21, 2023 at 7:48 am
  
  Keyur Kanade
  Ansys Employee
  
  How many faces there on outlet?
  Please check multizone tutorial in Ansys Meshing.
  Regards,
  Keyur
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- December 21, 2023 at 11:40 pm
  
  scabo
  Subscriber
- December 21, 2023 at 11:45 pm
  
  scabo
  Subscriber
  
  Hi There is one face on outlet and 2 faces on inlet.
- December 22, 2023 at 7:47 am
  
  Keyur Kanade
  Ansys Employee
  
  Is there any other geometry connected to this geometry? Are you able to use multizone for a simple cylinder with one face at each end?
  Regards,
  Keyur
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- December 22, 2023 at 8:05 am
  
  scabo
  Subscriber
  
  Hi, No there are no other geometry but this geometry is a bit long, 5m. Yes i am able to use multizone on a simple small cylinder.
  Also does tetra mesh and hexa mesh produce a lot of diff in fluid flow results?
- December 22, 2023 at 8:08 am
  
  Keyur Kanade
  Ansys Employee
  
  If there is no geometry attached, you can slice the geometry in SpaceClaim or Design Modeler to make it 2 half cylinders and then use Sweep method. Depending on applicaton tet and hex may play a role. But if you are working on a simple single phase flow through pipe, it should not make much difference.
  Regards,
  Keyur
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- December 24, 2023 at 4:17 am
  
  scabo
  Subscriber
  
  Ok, thanks