[GAMBIT] Combining Volumes

S.Tushar · March 29, 2012, 09:56

Hi
I am modelling a solar air heater duct. Due to computational limits I have not ben able to create a satisfactory mesh for the domain. I have been trying to mesh the volume by splitting the domain into smaller volumes..
My query is how can I reunite these volumes for the solver without affecting the mesh.. or how can i read this split volume as a continuous duct in Fluent

-mAx- · March 30, 2012, 01:51

Simply export your mesh. Then you should see all your split volumes in Fluent.
The only issue which may come, is that volumes aren't connected together. In this case you get a wall surface between volumes (instead of interior surfaces which are invible)

S.Tushar · March 30, 2012, 09:24

Thanks Max

To make the volume continuous again what boundary conditions are to be used on the splitting face??

-mAx- · March 30, 2012, 09:26

nothing.
If you split one volume into 2 volumes, you don't need to define anything. A internal BC is automatically created, and won't appear as a BC

S.Tushar · March 30, 2012, 09:32

on reading the mesh in fluent, would it read the internal faces as the fluid continnum?

-mAx- · April 2, 2012, 01:15

yes.
Just try

March 29, 2012, 09:56	Combining Volumes	#1
S.Tushar New Member Tushar Join Date: Mar 2012 Posts: 6 Rep Power: 14	Hi I am modelling a solar air heater duct. Due to computational limits I have not ben able to create a satisfactory mesh for the domain. I have been trying to mesh the volume by splitting the domain into smaller volumes.. My query is how can I reunite these volumes for the solver without affecting the mesh.. or how can i read this split volume as a continuous duct in Fluent

March 30, 2012, 01:51		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	Simply export your mesh. Then you should see all your split volumes in Fluent. The only issue which may come, is that volumes aren't connected together. In this case you get a wall surface between volumes (instead of interior surfaces which are invible) __________________ In memory of my friend Hervé: CFD engineer & freerider

March 30, 2012, 09:24	RE	#3
S.Tushar New Member Tushar Join Date: Mar 2012 Posts: 6 Rep Power: 14	Thanks Max To make the volume continuous again what boundary conditions are to be used on the splitting face??

March 30, 2012, 09:26		#4
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	nothing. If you split one volume into 2 volumes, you don't need to define anything. A internal BC is automatically created, and won't appear as a BC __________________ In memory of my friend Hervé: CFD engineer & freerider

April 2, 2012, 01:15		#6
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	yes. Just try __________________ In memory of my friend Hervé: CFD engineer & freerider

March 30, 2012, 09:32		#5
S.Tushar New Member Tushar Join Date: Mar 2012 Posts: 6 Rep Power: 14	on reading the mesh in fluent, would it read the internal faces as the fluid continnum?

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