3D Simulation for Air-Air Mixing
 

Hi all,

I am modeling a T injection system. Currently I am mixing air-air, but may soon model air-co2 mixing. I want to mark the amount of air coming from the jet, and the amount coming from the main inlet. Essentially see the mixing ratio. What are the simplest models to turn on for this? Either way these will be nonreacting gases.

I understand that species transport is what I have to use, but I dont know what options/settings to set within it.
i.e. Inlet Diffusion, Diffusion Source, Volumetric, # of volumetric species?