A simple question about length unit
 

Hi everyone,

Here is the question. I designed my geometry in ICEM. I never specified the length unit. When i import the mesh to CFX, the length unit is defined automatically to meter which makes my geometry too large to have the correct simulation results. (My pipe is 4 cm long but it makes it 40 meters. So the pressure drop result doesn't make any sense. )May I ask how to set my geometry to the correct size without redoing it?

Best regards,
lnk

When writing the mesh in ICEM, you can apply a scaling factor.

If you forgot to do so, you can still scale the mesh in CFX.

Thank you very much. May I ask how to scale it at CFX?

Best,
lnk

ICEM is unitless. Simon already explained that in this forum, you should make a research.

But as Flotus said, you can scale your mesh when you export, or scale your geometry when you import it.

Right click on the imported mesh, choose "transform mesh" and select "scale" as the type of transformation. Isn't this in the manual?

But I can't scale it any more after I already imported the mesh, right?

Best,
lnk

Sure you can. See my last post.

Thank you very much, Flotus and BrolY. I searched 'length unit' at the 'help CFX-pre' but didn't find the answer for that. Now the problem is solved. Thanks!