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-   -   [GAMBIT] Revolve faces (http://www.cfd-online.com/Forums/ansys-meshing/101696-revolve-faces.html)

msormania May 11, 2012 04:09

Revolve faces
 
1 Attachment(s)
Hi,
I used Revolve Faces in Gambit for generating the fluid domain of very thin groove plate.
While I am generating the mesh, I got several warnings and errors.
I used "359.99" for angle of face and draft:angle "30" (default) and "extended" "with mesh" option.

+++++++++++++++++++++++++++++++++++++++++++++++
Command> volume create revolve "face 1" dangle 359.9 vector 0 0 1 origin 0 0 0 draft \ 30 extended withmesh

Error: ACIS 31000 coedge on parametric surface with no pcurve
Error: ACIS 31000 coedge on parametric surface with no pcurve
Error: Edge dege 1539 has effectively zero length(0.0000000000000+000)
and is therefore corrupt.
Error: An interval size of 0.000000 cannot be set on edge edge 1539
Interval sizes must be greater than geometric tolerances.
Error: Edge edge 1544 has effectively zero length(0.0000000000000+000)
and is therefore corrupt.
Error: An interval size of 0.000000 cannot be set on edge edge 1539
Interval sizes must be greater than geometric tolerances.
Created volume 1
Warn: Problematic geometry reported for volume volume 1
Warn: There are output entities with badly checking geometry
Warn: cannot sweep/revolve mesh from face face 1
++++++++++++++++++++++++++++++++++++++++++++++++++ +++

I checked Revolve Faces Command but, no specific angles were given.
I gave 3 interval counts on each edge but I do not know why it is telling an interval size.

What should I check?
If I want to make a thin groove plate mesh, what might be the best angle values for each?

What is the difference between "extended" and "round"?

Thanks

Best regards

-mAx- May 11, 2012 04:25

can you post a sketch of the face you want to revolve
what is the reason for 359 angle, and not 360

msormania May 11, 2012 13:52

Error: ACIS error 95032 : Specified start and end point coincident
 
1 Attachment(s)
Hi, mAx

If I input 360 angle, it gives error code in the title.
Error: ACIS error 95032 : Specified start and end point coincident
Either option (Extended or Round) does not make any mesh but make a volume.

I attached 1 face with face meshes which should be revolved in z axis around 360 degrees.

Please help me.

Thanks

-mAx- May 11, 2012 15:21

please post a picture of the surface you want to revolve

msormania May 11, 2012 15:44

Warn : Cannot sweep/revolve mesh while generating
 
Only volume is generated.
I need a 2D mesh to be revolved and result in a 3D mesh.

How can I do that operation?

msormania May 11, 2012 16:16

Surface pictures
 
1 Attachment(s)
Sorry for not updating my page causing that I posted another reply.

Here is the picture.
Upper one is the left side which is an axis of rotation.
Middle one is the far away view.
Bottom one is the right side which is enclosing the face.

Very thin surface (which has divided by 2) with grooves (2 by 2 suface meshes) as well as enclosing ambient surface at the right side can be seen.

Thanks for your help,
Regards

-mAx- May 14, 2012 02:12

ok
in the revolve surface panel, just pick your face and give 90 as angle (don't enable mesh option)
once the volume is generated, you can go and mesh it. Gambit will automatically select hex/wedge schema.
Now you have a quarter, if you need full model, you may play with reflection

msormania May 15, 2012 14:33

Thanks for your help
 
Thanks for your help sincerely

Mesh size is huge when I made a full geometry.
Over 500MB.....

I need to cut down on some of geometry of mine.

With mesh option has a tricky facet.


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