I have started to play around a little bit with a combustions simulation - its very preliminary so apologies for any stupid questions.
I noticed that in the test scenes you general use sources from the Eddy primitives. I was trying to recreate some fire we had created here before, by using a VBD of a (kind-of) initial state. It looks a bit like this:
Looking at the Eddy test Nuke scripts, you could set a specific value for the various channels when creating the volume. For example temperature was set to 800.
When I tried to match these, I could only see a multiplier on the emitter connected to my VBD, and I couldn’t find a good way to check the resulting values that would be used by the simulation.
My question would be - is there any way to preview or sample those values (either in the emitter of the sim) and is are there any reference for what “good” vales should be for the different channels, and how they interact (fuel/temperature/density)?
I played with a lot of different numbers, wanting to get better “licks” of flames and I also noticed some things:
- I had to use a very low multiplier for the buoyancy: 0.005 - is that to be expected?
- Simply increasing the multiplier on the temperature emitter didn’t create bigger flames that I could see.
Perhaps some kind of tutorial or reference of how the physics of the solver work could be a useful guide for new starters (if there isn’t one already)…?