[paja123]

Hello!
I would like to create a model of fire extinguishing by gas in the room.

Do I need to used the species transport?
Or does someone know something better to simulate this?

Can I set up two mixtures in my domain?
First mixture (burning material plus air) for some time and after
second mixture (burning material plus air plus suppressant agent).
How I can set up the time when is valid first mixture and when second mixture? Or should I use just one mixture?

Please, if you have any advice it is more than welcome!
Paja