Airfoil creation in Workbench using its coordinates

SHIKHA BHUYAN · August 19, 2013, 01:54

Hi,
I hv imported points in design modeller and joined the points using polyline option to form the complete curve of my airfoil. Now, I wnted it to exprt to ICEM cfd for meshing. But I am unable to exprt it in .igs format.
Also, I tried to import geom. by workbench reader and formatted point data (import geometry) but in vain.

error shown:
ERROR: pIPartMgr->AttachAssembly() failed!
Current Coordinate system is global
Done

Plz help!!

blazejpop · August 19, 2013, 05:39

Why you're unable to export geometry from DM to IGES?

SHIKHA BHUYAN · August 19, 2013, 11:02

Thnx for ur reply.It doesnt allow to export in igs or stp file. whenever I go for it shows error as
:
"The file is not saved.The model geometry is not valid for this save operation."

blazejpop · August 19, 2013, 11:58

You can try this:

Save your Workbench project and open ICEM CFD. In ICEM tab 'File' is a tool 'Workbench Readers'. You can import geometry from your project.

oh sorry, you've tried this.

so maybe you should try to create your geometry in some cad modeler (NX,CATIA...) and import it to ICEM.

SHIKHA BHUYAN · August 19, 2013, 13:18

I tried a lot bt cud nt import it in anyway. So, went with 3D model of the airfoil i.e I extruded it and then exported it in .igs format and it worked. Howevr,I dnt knw d rsn.

blazejpop · August 19, 2013, 15:30

Ok.
So you just can't export only lines to IGES, you have to make surface from your sketch and then export it. I think that solves your problem.

SHIKHA BHUYAN · August 20, 2013, 01:54

Ya...I think,it isnt possible if I import it by using point(option). Bt I cud export the 3D curve...I dnt understand whats the matter..do u hv ny idea.
Moreover, do you know any links for meshing 3D airfoil..thnx.

blazejpop · August 21, 2013, 08:36

I'm not sure, but I think that IGES does not support models which contains only points or lines - 2D. 3D Curve is in default treated as a 3D model because it has 3 coordinates (X,Y,Z) so it could be exported to IGES.

As to the tutorials - you should look for them in Google. Some users of cfd-online also created their own tutorials.

SHIKHA BHUYAN · August 21, 2013, 13:16

Thnx a lot for your quick reply...Its been great help to carry forwrd my work.

August 19, 2013, 01:54	Airfoil creation in Workbench using its coordinates	#1
SHIKHA BHUYAN Member shikha Join Date: Aug 2013 Posts: 40 Rep Power: 12	Hi, I hv imported points in design modeller and joined the points using polyline option to form the complete curve of my airfoil. Now, I wnted it to exprt to ICEM cfd for meshing. But I am unable to exprt it in .igs format. Also, I tried to import geom. by workbench reader and formatted point data (import geometry) but in vain. error shown: ERROR: pIPartMgr->AttachAssembly() failed! Current Coordinate system is global Done Plz help!!

August 19, 2013, 13:18	Airfoil coordinate	#5
SHIKHA BHUYAN Member shikha Join Date: Aug 2013 Posts: 40 Rep Power: 12	I tried a lot bt cud nt import it in anyway. So, went with 3D model of the airfoil i.e I extruded it and then exported it in .igs format and it worked. Howevr,I dnt knw d rsn.

August 21, 2013, 13:16	Airfoil coordinate	#9
SHIKHA BHUYAN Member shikha Join Date: Aug 2013 Posts: 40 Rep Power: 12	Thnx a lot for your quick reply...Its been great help to carry forwrd my work.

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August 19, 2013, 05:39		#2
blazejpop Member Błażej Popławski Join Date: Jul 2013 Posts: 34 Rep Power: 12	Why you're unable to export geometry from DM to IGES?

August 19, 2013, 11:02		#3
SHIKHA BHUYAN Member shikha Join Date: Aug 2013 Posts: 40 Rep Power: 12	Thnx for ur reply.It doesnt allow to export in igs or stp file. whenever I go for it shows error as : "The file is not saved.The model geometry is not valid for this save operation."

August 19, 2013, 11:58		#4
blazejpop Member Błażej Popławski Join Date: Jul 2013 Posts: 34 Rep Power: 12	You can try this: Save your Workbench project and open ICEM CFD. In ICEM tab 'File' is a tool 'Workbench Readers'. You can import geometry from your project. oh sorry, you've tried this. so maybe you should try to create your geometry in some cad modeler (NX,CATIA...) and import it to ICEM.

August 19, 2013, 15:30		#6
blazejpop Member Błażej Popławski Join Date: Jul 2013 Posts: 34 Rep Power: 12	Ok. So you just can't export only lines to IGES, you have to make surface from your sketch and then export it. I think that solves your problem.

August 20, 2013, 01:54		#7
SHIKHA BHUYAN Member shikha Join Date: Aug 2013 Posts: 40 Rep Power: 12	Ya...I think,it isnt possible if I import it by using point(option). Bt I cud export the 3D curve...I dnt understand whats the matter..do u hv ny idea. Moreover, do you know any links for meshing 3D airfoil..thnx.

August 21, 2013, 08:36		#8
blazejpop Member Błażej Popławski Join Date: Jul 2013 Posts: 34 Rep Power: 12	I'm not sure, but I think that IGES does not support models which contains only points or lines - 2D. 3D Curve is in default treated as a 3D model because it has 3 coordinates (X,Y,Z) so it could be exported to IGES. As to the tutorials - you should look for them in Google. Some users of cfd-online also created their own tutorials.