Learning Forum

[christopher.t.nemecek]

Hello,

Is it possible to use multizone meshing for a region within your domain while also being able to use poly or poly-hexcore for the rest of the domain? For example, if you have a cylinder not aligned with the cartesian coordinate system, can you multizone mesh that to align the cells to the flow direction while the connecting domain is poly or poly-hexcore?

[Federico]

Hello, 

yes, that is possible. You just need to create separate cell zones for this. When using MultiZone, you do not need to mesh the entire domain. You will find a task for generating the volume mesh in the remaining zones of your domain after the MultiZone meshing is complete.

[christopher.t.nemecek]

Ok. From my understanding though, if you wanted to mesh the non-multizone region and have a conformal mesh/interface, Ansys only supports Tet or Hexcore. If you wanted to use Polyor Poly-Hexcore in the rest of the domain, you'd need a non-conformal interface. Correct? If so, it seems like the ability to have a conformal multizone/poly mesh would be nice. Star-CCM+ has this capability.

[Federico]

Yes, you are correct. If you have a hex-type multizone mesh, you currently cannot have a conformal interface with a Polyhedral/polyhexcore zone.