how to impose fixed value at a point (or region) during calculation ?

santiagomarquezd · February 25, 2012, 07:51

Jorkolino,

Quote:

Originally Posted by jorkolino

Does anyone know how can I access the cells from a patch with name patchname ? I want to run a procedure (particle injection) for each of the cells. I have the code, but I need the cell index.

Are you referring to access to the cells which have a face on the patch? If it is the case, there is a method to find them, faceCells().

Regards.

samiam1000 · February 27, 2012, 04:29

Dear Santiago,

maybe you can help me, too. Do you know, by chance, how I can impose a certain value to some cells?

I am using the solver buoyantSimpleFoam, running OF 2.0.1

I have tried - following some thread in this forum - to edit the source.. But the point is that nothing happens. I guess I am editing the wring files.

Thanks,
Samuele

olivierG · February 27, 2012, 09:00

hello,

I am not sure this can help you, but from the 2.1 version, there is a new field source, in which you can set a value ( see explicitSetValue entry).
Only few solver have this, but you can add to the buoyantSimpleFoam solver.

regards,
olivier

samiam1000 · February 27, 2012, 09:04

Now I'll have a look..
This sounds great! Hope this is what I need.

And I am looking forward to have the 2.1 version installed, then.

Thanks a lot,

Samuele

santiagomarquezd · February 28, 2012, 16:38

Samuele, I haven't explored OpenFOAM > 1.7.x so maybe your problem is already solved by the developers as Oliver told us. The way I was thinking about is:

http://openfoamwiki.net/index.php/Co...lockedCellFoam

Regards.

samiam1000 · February 29, 2012, 02:42

That's good.

Thanks a lot.

As soon as I get the OF 2.1, I'll try to solve this.

Samuele.

February 28, 2012, 16:38		#25
santiagomarquezd Senior Member Santiago Marquez Damian Join Date: Aug 2009 Location: Santa Fe, Santa Fe, Argentina Posts: 452 Rep Power: 23	Samuele, I haven't explored OpenFOAM > 1.7.x so maybe your problem is already solved by the developers as Oliver told us. The way I was thinking about is: http://openfoamwiki.net/index.php/Co...lockedCellFoam Regards. __________________ Santiago MÁRQUEZ DAMIÁN, Ph.D. Research Scientist Research Center for Computational Methods (CIMEC) - CONICET/UNL Tel: 54-342-4511594 Int. 7032 Colectora Ruta Nac. 168 / Paraje El Pozo (3000) Santa Fe - Argentina. http://www.cimec.org.ar

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February 27, 2012, 04:29		#22
samiam1000 Senior Member Samuele Z Join Date: Oct 2009 Location: Mozzate - Co - Italy Posts: 520 Rep Power: 18	Dear Santiago, maybe you can help me, too. Do you know, by chance, how I can impose a certain value to some cells? I am using the solver buoyantSimpleFoam, running OF 2.0.1 I have tried - following some thread in this forum - to edit the source.. But the point is that nothing happens. I guess I am editing the wring files. Thanks, Samuele

February 27, 2012, 09:00		#23
olivierG Senior Member Olivier Join Date: Jun 2009 Location: France, grenoble Posts: 272 Rep Power: 17	hello, I am not sure this can help you, but from the 2.1 version, there is a new field source, in which you can set a value ( see explicitSetValue entry). Only few solver have this, but you can add to the buoyantSimpleFoam solver. regards, olivier

February 27, 2012, 09:04		#24
samiam1000 Senior Member Samuele Z Join Date: Oct 2009 Location: Mozzate - Co - Italy Posts: 520 Rep Power: 18	Now I'll have a look.. This sounds great! Hope this is what I need. And I am looking forward to have the 2.1 version installed, then. Thanks a lot, Samuele

February 29, 2012, 02:42		#26
samiam1000 Senior Member Samuele Z Join Date: Oct 2009 Location: Mozzate - Co - Italy Posts: 520 Rep Power: 18	That's good. Thanks a lot. As soon as I get the OF 2.1, I'll try to solve this. Samuele.