[pankajdg]

hello everyone,

I am trying to simulate a natural draft burner for combustion of methane. I have provided pressure as input boundary condition for both fuel and air (fuel - 125000pa air - 100000pa ) with velocity 0. without combustion simulation is working fine. I tried to ignite the mixture by providing a temperature using setFields. But when the mixture ignites there is a pressure rise which causes backflow and simulation crashes.

can anybody tell me how to control simulation ?
Should I change my boundary conditions?

Thanks & Regards:
Pankaj