So once upon a time I stumbled upon simulating fluids in gamedev and I really wanted to learn how it works. Fast forward 2 months and I decided to write down everything I learned to hopefully make it easier for others in the future!
This is really cool. I love how much detail you went into explaining the setup and walking through each piece of the simulation. Definitely bookmarking this to play around with later!
Couple of notes, I think you forgot to apply timestep when adding rocket exhaust velocity, pretty sure it should be
You need to compensate by scaling up flame_velocity_amount, I used 85, seemed about the same.Thank you