[carm]

Hi everyone,

I am really new to fluent. Basically I am trying to simulate a shock tube. I am planning to use the premixed combustion. However, I don't know how can I simulate it. So far I have made a couple of tutorials and in most of them I have to input a flow. But, as I mention before, the mixture is premixed, therefore is just loaded inside the tube.

I have read that I have to use the pressure inlet/outlet BC. But my question is, how do I specify where is the mixture if there is not inlet flow?

Thank you very much for your help!