How to make 2D model

Lokesh · August 14, 2014, 14:49

Hi, I am new to star CCM+. I want to do a conduction model for a cylindrical shell with having inner tubes through which flow happens. I have created volume mesh i.e. 3D mesh I guess. Now If I want to do the 2D conduction problem, do I need to convert the mesh into 2D? And could you please tell me exactly what I have to do.

Henry Arrigo · August 18, 2014, 06:20

Create your sketch in xy plane, generate mesh and then convert it to 2D. The key point is that you create the base sketch in xy plane. Also the star documentation is pretty clear in this regard.

Lokesh · August 18, 2014, 10:15

Thank you for the reply.

If we convert mesh into 2D, can we give inlet boundary condition?
And as I want to do a conduction problem for a solid shell having a tube inside it, I need to specify velocity at the inlet? right?
Could you please clarify my small doubt.

Regards
Lokesh

Henry Arrigo · August 18, 2014, 13:17

you should specify the BCs in 3D, then convert the region to 2D. the BCs will remain after this transformation.

August 14, 2014, 14:49	How to make 2D model	#1
Lokesh New Member Lokesh Join Date: May 2014 Posts: 6 Rep Power: 11	Hi, I am new to star CCM+. I want to do a conduction model for a cylindrical shell with having inner tubes through which flow happens. I have created volume mesh i.e. 3D mesh I guess. Now If I want to do the 2D conduction problem, do I need to convert the mesh into 2D? And could you please tell me exactly what I have to do.

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August 18, 2014, 06:20		#2
Henry Arrigo Senior Member Henry Arrigo Join Date: Jun 2010 Location: Italy Posts: 100 Rep Power: 15	Create your sketch in xy plane, generate mesh and then convert it to 2D. The key point is that you create the base sketch in xy plane. Also the star documentation is pretty clear in this regard.

August 18, 2014, 10:15		#3
Lokesh New Member Lokesh Join Date: May 2014 Posts: 6 Rep Power: 11	Thank you for the reply. If we convert mesh into 2D, can we give inlet boundary condition? And as I want to do a conduction problem for a solid shell having a tube inside it, I need to specify velocity at the inlet? right? Could you please clarify my small doubt. Regards Lokesh

August 18, 2014, 13:17		#4
Henry Arrigo Senior Member Henry Arrigo Join Date: Jun 2010 Location: Italy Posts: 100 Rep Power: 15	you should specify the BCs in 3D, then convert the region to 2D. the BCs will remain after this transformation.