code_saturne User's Forum

Hello,

I have only a little experience in the use of Code_saturne, so before starting to try to model the thermal decomposition of powders, I would like to check if it is possible (and why not relatively easy).

So, I have thermogravimetric analysis (TGA) data of powder.

To model these experience, I need :

- A porous media, with thermal and gas release source terms,
- conduction in the crucible,
- radiation within the cavity,
- multi gas (N2,O2,H2O,CO,CO2) flows

and probably more difficult oxidation of CO by O2 (this might be in a first approach only model by exothermic heat source included at the level of the solid powder)

Do you think it is possible ?

Best regards

JPG

Hello,

I guess this should be possible, as most of the features you need exist in the code, as part of separate models.

The radiative model we have is a semi-transparent model (P1 for very opque cases, DOM otherwise), and using a fully transparent model would require coupling with Syrthes, with some modifications.

We already have some multi-gas mix cases for combustion modelling (as well as in a separate atmospheric pollutant chemistry model, which is probably less relevant).

The combustion models (designed for coal or gas) would probably require some adaptation for your case, so it is hard to say how difficult that would be.

Regards,

Yvan