If I can't narrow down any of those variables via research, I'll attempt to build a vortex gun that can change as many of those as possible. Here's my plan: Gas pressure in chamber: set at air-compressor/compressed-gas-cylinder via gauge/regulator Chamber volume: I plan to copy shiddymunkie’s design...

I'm working on a pneumatic vortex ring generator too - of a larger scale, like shiddymunkie wants for his next ;-) Unfortunately, I’ve found limited information on how vortex rings actually form. Ring variables that I can think of: 1. stability / longevity before it dissipates 2. forward velocity 3....