[ICEM] Geometry cleaning to use a multidomain simulation

Attesz · October 19, 2009, 04:56

Hi all,

I want to simulate a centrifugal compressor as frozen rotor. I've imported the geometry to ICEM-CFD, and at the interfaces I've got multiple faces. One belongs to the inlet and the other one to the rotor domain. The faces overlapping each other. I think, i should to delete one of the faces to avoid errors in CFX, right?

Thank you, best regards,
Attesz

PSYMN · October 20, 2009, 09:38

Yes, if they represent just one interface between volumes, delete one, particularly if using ICEM CFD Tetra. Otherwise some boundary elements will be in one part or the other and you will get a patch work boundary.

If using hexa, you can control projection better and cause the mesh to ignore one surface and associate completely to the other, but even then it may be easier to just delete one.

Simon

October 19, 2009, 04:56	Geometry cleaning to use a multidomain simulation	#1
Attesz Senior Member Attesz Join Date: Mar 2009 Location: Munich Posts: 368 Rep Power: 17	Hi all, I want to simulate a centrifugal compressor as frozen rotor. I've imported the geometry to ICEM-CFD, and at the interfaces I've got multiple faces. One belongs to the inlet and the other one to the rotor domain. The faces overlapping each other. I think, i should to delete one of the faces to avoid errors in CFX, right? Thank you, best regards, Attesz

October 20, 2009, 09:38	Yes. One is enough.	#2
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	Yes, if they represent just one interface between volumes, delete one, particularly if using ICEM CFD Tetra. Otherwise some boundary elements will be in one part or the other and you will get a patch work boundary. If using hexa, you can control projection better and cause the mesh to ignore one surface and associate completely to the other, but even then it may be easier to just delete one. Simon

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