Premixed Combustion
 

Hi all
I have a problem that when I simulate Premixed Combustion methane+hydrogene+air in Fluent. But when I chose Premixed Combustion and I can't input species of methane or hydrogen, also equivalent ratio, mass fraction in Material tab. Could you help me? How to simulate Premixed Combustion methane,hydrogen/air in Fluent? Thank you so much.