[GAMBIT] change 3d to 2d

flow_CH · July 9, 2013, 12:19

Hello.

I have a 3d model in gambit. I want to use part of that model for using in 2d of fluent. I am erasing other edges and faces but in exporting the mesh gambit give me this error: please see image
I checked "export 2d x-y mesh" but it does not work.
I think since i have z coordinates, it produce the error
How can i change 3d to 2d?
Thanks

-mAx- · July 10, 2013, 02:10

are all your vertices in (Z=0) plane?

flow_CH · July 10, 2013, 02:27

Quote:

Originally Posted by -mAx-

are all your vertices in (Z=0) plane?

No. I said "I think since i have z coordinates, it produce the error". How can i fix that z coordinates to 0 ?

-mAx- · July 10, 2013, 02:41

Move your surface for having all your vertices with Z=0 (enable Connected Geometry option)

Far · July 10, 2013, 09:37

Quote:

Originally Posted by flow_CH

Hello.

I have a 3d model in gambit. I want to use part of that model for using in 2d of fluent. I am erasing other edges and faces but in exporting the mesh gambit give me this error: please see image
I checked "export 2d x-y mesh" but it does not work.
I think since i have z coordinates, it produce the error
How can i change 3d to 2d?
Thanks

For 2d analysis you must consider:

1. does 2d analysis represents your 3d case? For example 2d case may give you good result for the 3d circular duct but it is not the case for transition duct changing its shape from circular to rectangular shape.

2. Your geometry must be on X-Y plane.

3.For axisymmetric case , model axis must be X-axis.

shizijianmo · May 2, 2014, 07:09

I have the same problem.
All my drawings are on x-z plane, so it's surely a 2D drawing. Is there any way I can change all the drawings directly to x-y plane? Thanks!

-mAx- · May 2, 2014, 08:22

with copy/move tool, you can rotate all your entities

July 10, 2013, 02:10		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	are all your vertices in (Z=0) plane? __________________ In memory of my friend Hervé: CFD engineer & freerider

July 10, 2013, 02:41		#4
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	Move your surface for having all your vertices with Z=0 (enable Connected Geometry option) __________________ In memory of my friend Hervé: CFD engineer & freerider

May 2, 2014, 08:22		#7
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	with copy/move tool, you can rotate all your entities __________________ In memory of my friend Hervé: CFD engineer & freerider

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shizijianmo New Member Sheng Join Date: Apr 2014 Posts: 1 Rep Power: 0	I have the same problem. All my drawings are on x-z plane, so it's surely a 2D drawing. Is there any way I can change all the drawings directly to x-y plane? Thanks!