Creating mixture material for gas dissolved in liquid
 

Hello,

I am trying to create a mixture material consisting of liquid steel (density= 7100kg/m3) and hydrogen gas (density=0.09kg/m3). The mass fraction of hydrogen in the mixture is 6 parts per million).

When I open the mixture panel to specify the properties of the mixture, Fluent treats it as a gas mixture, with options to specify the density based on the ideal gas law. This does not make sense to me because the steel/hydrogen mixture is a liquid, and the hydrogen is dissolved into the steel.

Did I improperly define the material mixture for this to happen, or is this the correct way of defining a liquid system with a dissolved gas specie?

[I have tried replacing gaseous hydrogen in the mixture material with liquid hydrogen but this did not change any of the available settings in the mixture panel].