pyro How to Break Mushroom

[wanghongshivfx]

i want to break the smooth, mashroom like shape off, when the mashroom shape get rough enough, stop break.

 

my solution is to add a Gasdisturb to simulation, to get rid of the mashroom like shape, and the strength of Gasdisturb decays with temperature.

But there's a problem: when Gas disturb is not controled by temperature field,the strength off Gas distrub is decay from blank area to the area which density is 0.05,as the picture 1

When Gas disturb is controled by temperature field, distribution of strength is as picture2

i think it is because The outermost layer of the smoke, that is, the junction of the smoke and the vacuum area, has a low-temperature area.As a result, when the temperature is used as the control field of gas disturbance, the outermost layer of smoke is very little affected by the disturbance, so that the mushroom head cannot be broken.

test.hip

Edited June 26, 2023 by wanghongshivfx

[Sepu]

There is a few ways, you can have a look at this threads 

 

 

https://www.sidefx.com/forum/topic/84195/