[Wertical]

Hello,

I am new in Fluent and i have below problem:
I am working with non-premixed combustion with little bit complicated geometry of diffusor (I spent a little time to make a usable mesh). But mesh is OK for FLUENT. Problem is that when i run simulation after 4 iterations when residuals are OK wil residuals of continuity and energy rapidly increase and i will get something like

No error handler available

and simulation will interrupt. Results from this are really out of reality.

Can somebody help me with this? Could there be problem with boundary conditions (which one?) or not?

I am working with pressure inlets for natural gas, primary and secondary air and with pressure outlet (I do not know what means temperature condition in pressure outlet)

Thanks a lot for any response and have a nice day.

[Wertical]

Hmm, i changed P1 residual to 0.2 from 1 and now it is working, but i lost connection with supercomputer so it will work for a long time with my workstation. I know that 0.2 is more than 1/3 decrease but after many tries i thought it will be a good idea.

May be, problem was only in residuals. But if you have some recommendations please wite it to me, I am real beginner in fluent.

Many thanks for any response. Have a nice day.