Valveless Pulsejet
 

Hello I'm trying to simulate a valveless pulsejet using ansys fluent. My model is an advanced focussed wave type. I am using transient model, energy equation on, for the viscosityK-epsilon SST model , radiation: P1 and for the species partially premixed combustion . For BCs I have only one pressure inlet (here is a big part of my doubt) with gauss pressure 0 and mean mixture fraction 0.064 (I'm using a stoichiometric propane-air mixture). For the outlet I have pressure outlet also with gauss pressure 0 and progress variable 1. The walls are defined as convective.

My problem is that when I start running I can not get combustion, the fuel does not flow into the combustion chamber. What should I do?

Does it make sense for the inlet and outlet to be at the same pressure for this problem? What drives the flow?

Yes you right, i've change the inlet pressure to 10.