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[ICEM] A simple question about length unit

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Old   July 26, 2012, 14:20
Question A simple question about length unit
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lnk
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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

Last edited by lnk; July 26, 2012 at 15:40.
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Old   July 27, 2012, 04:23
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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.
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Old   July 27, 2012, 04:26
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Quote:
Originally Posted by flotus1 View Post
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
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Old   July 27, 2012, 04:27
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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.
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Old   July 27, 2012, 04:33
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Right click on the imported mesh, choose "transform mesh" and select "scale" as the type of transformation. Isn't this in the manual?
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Old   July 27, 2012, 04:34
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Quote:
Originally Posted by BrolY View Post
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.

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

Best,
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Old   July 27, 2012, 04:45
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Sure you can. See my last post.
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Old   July 27, 2012, 05:01
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Quote:
Originally Posted by flotus1 View Post
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!
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