Floworks: Mixing and thermal analysis of two gases
 

I am trying to model hydrogen at 2700 degrees C coming into a chamber and mixing with nitrogen at 20 deg C and then exiting out of one port at a certain concentration. I can get results when only one gas is used, but I haven't been able to figure out how to use muliple gases. Could someone who is familiar with Cosmos Floworks help me with this?

Thanks, Jay