BC in a volume

samiam1000 · February 24, 2012, 06:04

Dear all,

I am trying to set a BC in a volume and not on a surface. In other words, I want that a certain volume in my domain has a certain fixed temperature. Of course, this condition is much stronger than imposing the temperature on the surface, isn't it?

Do you have an idea if it is possible (if yes, could you tell me how, please) do what I would like to do?

Thanks a lot,

Samuele

laurensvd · February 24, 2012, 07:27

You could modify your solver by adding some lines that checks the position of a cell
If that cell is then in the region you want it overwrite the calculated value with your own fixed value.

samiam1000 · February 24, 2012, 07:30

Actually, I am reading about the setValues function that is available in OpenFOAM.
In fact I know the label of the cells I want to fix the value in.

Do you know something about this?

Thanks a lot,

Samuele

samiam1000 · February 24, 2012, 10:17

Also, I forgot to write that I am running OF 2.0 and am using the solver buoyantSimpleFoam.

Furthermore, I can not und which is the righ file to edit. I checked this thread, too. But I can't find the right file to edit.

Could you help?

Thanks a lot,

Samuele

February 24, 2012, 06:04	BC in a volume	#1
samiam1000 Senior Member Samuele Z Join Date: Oct 2009 Location: Mozzate - Co - Italy Posts: 520 Rep Power: 19	Dear all, I am trying to set a BC in a volume and not on a surface. In other words, I want that a certain volume in my domain has a certain fixed temperature. Of course, this condition is much stronger than imposing the temperature on the surface, isn't it? Do you have an idea if it is possible (if yes, could you tell me how, please) do what I would like to do? Thanks a lot, Samuele

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February 24, 2012, 07:27		#2
laurensvd Member Laurens Van Dyck Join Date: Jul 2011 Location: Netherlands/Germany Posts: 34 Rep Power: 15	You could modify your solver by adding some lines that checks the position of a cell If that cell is then in the region you want it overwrite the calculated value with your own fixed value.

February 24, 2012, 07:30		#3
samiam1000 Senior Member Samuele Z Join Date: Oct 2009 Location: Mozzate - Co - Italy Posts: 520 Rep Power: 19	Actually, I am reading about the setValues function that is available in OpenFOAM. In fact I know the label of the cells I want to fix the value in. Do you know something about this? Thanks a lot, Samuele

February 24, 2012, 10:17		#4
samiam1000 Senior Member Samuele Z Join Date: Oct 2009 Location: Mozzate - Co - Italy Posts: 520 Rep Power: 19	Also, I forgot to write that I am running OF 2.0 and am using the solver buoyantSimpleFoam. Furthermore, I can not und which is the righ file to edit. I checked this thread, too. But I can't find the right file to edit. Could you help? Thanks a lot, Samuele