CO2 pressure temperature phase visualization using geometry node (thelemmy.club)

submitted 2 weeks ago* (last edited 2 weeks ago) by TacticalToothbrush@discuss.tchncs.de to c/blender@lemmy.world

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EDIT (2026-05-08) DISCLAIMER : !!! DO NOT USE WHATEVER YOU SEE HERE IN REAL LIFE SITUATION. THE NUMBERS ARE OFF BY LIKE 10 TIMES. I don't plan to debug it very soon.

Context: I was trying to make sure gas system in my airsoft^[!Airsoft@lemmy.world] gun will not destroy itself or shoot metal projectile in my face due to mechanical failure.

I make this so I can see all the parameters I need in one glance.

phase gradient

Input CO2 cartridge size
Set minimum volume with safe estimate cartridge dry volume
Set maximum volume to account for expansion chamber
Set temperature range I expect it to operate in

Result is pressure gradient plane (PSI) and its phase
small sphere = gas
large sphere = non-gas (liquid, supercritical fluid)
Color gradient for pressure regulator safe operation range

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[-] SkaveRat@discuss.tchncs.de 4 points 2 weeks ago

dear mother of god

[-] TacticalToothbrush@discuss.tchncs.de 2 points 2 weeks ago

It's reusing very few nodes for many connections, no node group nesting so it looks messy. Unless it is modular and I can reuse it in other scenario, no point in spending more time on it just to make it look better or save few milliseconds per run.

this post was submitted on 06 May 2026

22 points (100.0% liked)

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