Fluid to Fire - Fuel Flowing from nozzel and then ignition

Hello All!

I’ve been at blender for a few weeks now - i’m quite impressed, especially with all of the great information in this forum (my first post!)!

I’m attempting to animate fuel flowing from a hose. I got the fluid part down - i’m stuck as I want the fuel to “ignite” a given distance away from the nozzle. So for the rendering i want to show the fluid (fuel) coming from end of the hose and then igniting.

Anyone seen a write-up on the underlying process? Any tips/tricks? Thanks a bunch in advance - i’m completely stuck!