Alison 0 Report post Posted May 6, 2006 In problem 6 in the TOUGH2 manual (Eos 7), I can choose between single phase (either liquid or gaseous) and two phase flow. However, I am a little bit confused. It is said that for a single-phase system one has to set: e.g. Xbrine = 0, than it's a single-phase system without brine. Xair = 0.99, than it's single-phase gas system. Why don’t we just set Xair=1? Share this post Link to post Share on other sites
Alison 0 Report post Posted May 6, 2006 In a single phase system with Xair=0.99 then the mass fraction of gaseous water is 0.01. In our experience, TOUGH2 is more stable if a small amount of water vapor is present in the gas (which is also the realistic case). The Brine mass fraction is 0.0 since the salt does not evaporate. Share this post Link to post Share on other sites
