Overwriting Temperature in OpenFoam

IvanaS · June 7, 2013, 10:20

Hi,

I coupled reactingFoam with the combustion in-house code that provides me density and temperature. I send temperature and density to OpenFoam in order to update flow field. OpenFoam uses density from combustion code properly but I have problems with temperature. OpenFoam doesn't use the temperature from the separate combustion code but one from basicThermo.

Does someone has any suggestion how to overwrite temperature in OpenFoam and make OpenFoam to use temperature calculated in the other code?
Is there a way to do it without modifying basicThermo files?

Thank you very much.

Regards,

Ivana

fredo490 · June 8, 2013, 07:18

I made somthing similar few weeks ago, here is the solution:
http://www.cfd-online.com/Forums/ope...implefoam.html

IvanaS · June 10, 2013, 09:17

Hi,

Thank you for your reply.

But would it be possible that I copy basicThermo to my own implementation of reactingFoam and modify it and use it from there? I am not sure how to do that? Would I also need to have "turbulenceModels/compressible/turbulenceModel" in the same directory?

I am asking this because if I change basicThermo in the top-level solver that might also influence other users of OpenFoam...

Thank you!

Regards,
Ivana

fredo490 · June 10, 2013, 11:57

If you do the modification I made in the other topic (add a member to get a variable T and not a constant T), there is no problem with the other solvers. I currently use it on my OpenFoam and everything runs fine. It simply "add" an extra function/possibility, it doesn't change anything.

But you can make it local if you want. I had this topic few weeks ago: http://www.cfd-online.com/Forums/ope...ion-2-2-a.html
I haven't got time to write a "tutorial" yet.

IvanaS · June 25, 2013, 06:17

It is working! Thank you!

Regards,

Ivana

fredo490 · June 25, 2013, 08:32

You are welcome. It seems that the last update from OF 2.2 includes a code similar to the one I've showed you. So, if you don't want to change everything next time, just update OF.

IvanaS · June 25, 2013, 08:34

That's good to know. Thanks once more!

June 7, 2013, 10:20	Overwriting Temperature in OpenFoam	#1
IvanaS New Member Ivana Join Date: Feb 2012 Posts: 16 Rep Power: 14	Hi, I coupled reactingFoam with the combustion in-house code that provides me density and temperature. I send temperature and density to OpenFoam in order to update flow field. OpenFoam uses density from combustion code properly but I have problems with temperature. OpenFoam doesn't use the temperature from the separate combustion code but one from basicThermo. Does someone has any suggestion how to overwrite temperature in OpenFoam and make OpenFoam to use temperature calculated in the other code? Is there a way to do it without modifying basicThermo files? Thank you very much. Regards, Ivana

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June 8, 2013, 07:18		#2
fredo490 Senior Member HECKMANN Frédéric Join Date: Jul 2010 Posts: 249 Rep Power: 17	I made somthing similar few weeks ago, here is the solution: http://www.cfd-online.com/Forums/ope...implefoam.html

June 10, 2013, 09:17		#3
IvanaS New Member Ivana Join Date: Feb 2012 Posts: 16 Rep Power: 14	Hi, Thank you for your reply. But would it be possible that I copy basicThermo to my own implementation of reactingFoam and modify it and use it from there? I am not sure how to do that? Would I also need to have "turbulenceModels/compressible/turbulenceModel" in the same directory? I am asking this because if I change basicThermo in the top-level solver that might also influence other users of OpenFoam... Thank you! Regards, Ivana

June 10, 2013, 11:57		#4
fredo490 Senior Member HECKMANN Frédéric Join Date: Jul 2010 Posts: 249 Rep Power: 17	If you do the modification I made in the other topic (add a member to get a variable T and not a constant T), there is no problem with the other solvers. I currently use it on my OpenFoam and everything runs fine. It simply "add" an extra function/possibility, it doesn't change anything. But you can make it local if you want. I had this topic few weeks ago: http://www.cfd-online.com/Forums/ope...ion-2-2-a.html I haven't got time to write a "tutorial" yet.

June 25, 2013, 06:17		#5
IvanaS New Member Ivana Join Date: Feb 2012 Posts: 16 Rep Power: 14	It is working! Thank you! Regards, Ivana

June 25, 2013, 08:32		#6
fredo490 Senior Member HECKMANN Frédéric Join Date: Jul 2010 Posts: 249 Rep Power: 17	You are welcome. It seems that the last update from OF 2.2 includes a code similar to the one I've showed you. So, if you don't want to change everything next time, just update OF.

June 25, 2013, 08:34		#7
IvanaS New Member Ivana Join Date: Feb 2012 Posts: 16 Rep Power: 14	That's good to know. Thanks once more!