[dvd91]

Hi,
I have a big problem in the simulation of the cold flow of a Flame D Sandia.
If I select only the model: Viscous-KEps (my fluid is only air) the velocity field produced by the simulation is correct; but if I select all the models required for my simulation:
Viscous: KEps,
Energy:On
Radiation:P1
Species: Partially Premixed Combustion-Steady diffusion flamelet

and I choose only to solve flow and turbolence equation in order to have the cold flow, the solution is wrong.
The difference among the two cases is only that in the first case the fluid is air, in the second case the fluid is the mixture.
You can see the different velocity fields (on the left only viscous model, on the right all the required models but only flow and turbolence equation activated)
im1.jpg
im2.jpg
It seems that the fluid can't go out from the inlet! Especially if you look the pilot inlet
im3.jpg

I hope you can help me to fix my problem.

Bye
Davide