[dvd91]

Hello to everybody
I'm trying to simulate a partially premixed flame in Fluent using the EDC. My problem is that my mixture doesn't burn, and I don't know why.

In my problem I have 3 different flows:
-coflow (air)
-methane&air mixture for the flame
-the pilot flame mixture (I don't simulate the pilot flame, so modelled the pilot as exausted gases at hight temperature (1880K).

In the section Species Model; as you can see I made on my own a mixture with all the species that I needed and I set all the data for the methane reaction.

image001.jpg
image002.jpg
image003.jpg

In the boundary condition section for the different inlets I set the mass fraction of the species according to my needs, and I did this for the methane&air inlet, the pilot inlet and the coflow inlet.

image004.png
image005.png

I don't know why this way doesn't work, is there someone that can help me?

[xuhuang]

Hi,

The abundant species (in your case, it is N2) should be put at the end of the list(in your attached figure 2).

Cheers,
Xu