[juzer_700]

Hi,

I have one more doubt.

Since I am using diesel, it requires a high temperature for the mixture to ignite.

In my experimental setup, I am using a spark ignition source to ignite a local flame and then the main fuel supply is turned on which catches the local flame and then a swirl stabilized flame is achieved.

Now, for my simulation I implemented two methods.

1) While intializing, I selected 'all zones', and under that I set the temperature to 2500K. The mixture did ignite after 80 iterations.

2) During my second simulation, I gave a patch of 2500K under entire zone. The mixutre ignited here as well.

My question is which approach is numerically correct. Am I making a mistake here??

For simulation, air inlet and fuel are both at 300K (same in experiment)

Thanks in advance.