After heater furnace with code saturne only?

[jgd23]

Hello,

I am a new user of code saturne and I don't again what are the capabilities if the code concerning temperature calculation.
Do you think it's possible to modelize a furnace with surface to surface radiations and conjugate heat transfert (heat equation coupled with Naviers Stockes, convection forced and/or natural), WITHOUT using Syrthes?

I am also interested in calculate Joule effect in resistors.

Best regards

Julien

[Yvan Fournier]

Hello,

Yes, the combustion models in the code actually do that: they use the built-in semi-transparent radiation model (while SYRTHES has a transparent radiation model, which is quite different), and do not use SYRTHES coupling.

Regards,

Yvan

[jgd23]

Hello,

Interesting for radiations, I don't know if I can remplace radiation in transparent media with semi transparent media in my problem (rosseling or P1 approx?). It would be a good news if it is possible.
Code saturne can calculate heat transfert in solid witout Syrthes? I have to calculate temperature inside solid pieces in a furnace.

And for the Joule heating what is the solution? Code saturne?

Best regards

julien

[Yvan Fournier]

Hello,

We have both a P1 option (for optically thick gases) and a DOM option, which is more expensive, but better if your medium is almost tansparent.

For truly transparent media, the SYRTHES radiation would be a better choice, ans is usable as long as you do have a solid volume to do the coupling (i.e. using the radiation model on SYRTHES with no solid would require modification of the coupling between Code_Saturne and SYRTHES, but with a solid, things should be OK).

If you choose coupling with SYRTHES, I recommend using version 4.2 of Code_Saturne, as I am not sure coupling based on a wall temperature was handled correctly for combustion models in older versions (as enthalpy is used in those cases, and the conversion for coupling was possibly only partially handled, and untested).

Computing the solid temperature in Code_Saturne only is a work in progress, which is not quite ready yet...

For Joule heating, you have a model in Code_Saturne, but that model is not currently usable simultaneously with combustion...

Regards,

Yvan