I have a fire sim that I set up. First 100 frames of the sim is pretty good for what I need but after around frame 120 (or the first 5 secs) it goes nuts ( see the video below). The flame and the burning rate almost starts accelerating suddenly. I am guessing that it is due to the temperature in the domain increasing.
I tried couple things including animating the time scale with small success. The flame rate still increases steadily while the time scale is animated to go down over time.
Is there a workaround the keep the fire “cool” as in the beginning? I guess what I need is to be abe to keep the fire time and the fuel burning rate to steady for about 1000 frames.