Problem Importing Geometry For Mesh in ICEM CFD

losiola · May 1, 2020, 17:37

Hello evryone
Hope you are doing well and safe

I have a small issue about importing geometry into ICEM CFD for mesh

As you can see in the picture i ve created the 3D Blade in solidworks than imported the Geometry into Design Modeler and made a cylindre around the blade. after that , using the boolean operations i substracted the blad from the cylindre to get the Fluid Domain only and as you can see from the pictures (1+2) (lateral surface of the cylindre is hidden ) that the blade surface is perfectly fine .BUT when i Move to icem CFD and open i ve noticed that the blade surface is not Correct (picture3) (missing peaces for some uknown reason ).

Does anyone know what is the problem and how Can i Resolve this issue ?

Thank you All

Gert-Jan · May 5, 2020, 16:10

It can be that it is just a matter of visualisation. What you can do is:
- In ICEM go to Settings>Model/Units and decrease Topo Tolerance and Triangulation by 1 order of magnitude and see if it helps.
- ICEM tends to show surfaces simplified to reduce graphical resources. So, the surfaces could be better than what you see. To check this, go to the tree on the left hand side. Open Goemetry>Surfaces. There, use your RMB to see options of surfaces. Select "Show Full".
- If not then, go back to Solidworks and split surfaces to end up with surface that span over 180. or 90°. And not over 360°. Then ICEM does not know where it starts, or end. This is by default a good idea.

May 1, 2020, 17:37	Problem Importing Geometry For Mesh in ICEM CFD	#1
losiola Member Os Join Date: Jun 2017 Posts: 80 Rep Power: 8	Hello evryone Hope you are doing well and safe I have a small issue about importing geometry into ICEM CFD for mesh As you can see in the picture i ve created the 3D Blade in solidworks than imported the Geometry into Design Modeler and made a cylindre around the blade. after that , using the boolean operations i substracted the blad from the cylindre to get the Fluid Domain only and as you can see from the pictures (1+2) (lateral surface of the cylindre is hidden ) that the blade surface is perfectly fine .BUT when i Move to icem CFD and open i ve noticed that the blade surface is not Correct (picture3) (missing peaces for some uknown reason ). Does anyone know what is the problem and how Can i Resolve this issue ? Thank you All

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May 5, 2020, 16:10		#2
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,827 Rep Power: 27	It can be that it is just a matter of visualisation. What you can do is: - In ICEM go to Settings>Model/Units and decrease Topo Tolerance and Triangulation by 1 order of magnitude and see if it helps. - ICEM tends to show surfaces simplified to reduce graphical resources. So, the surfaces could be better than what you see. To check this, go to the tree on the left hand side. Open Goemetry>Surfaces. There, use your RMB to see options of surfaces. Select "Show Full". - If not then, go back to Solidworks and split surfaces to end up with surface that span over 180. or 90°. And not over 360°. Then ICEM does not know where it starts, or end. This is by default a good idea.