Two circular vortex rings propagate in air seeded by smoke - Flow Visualization
Vortex Ring State: what is it, how to prevent it and how to get out of it • HeliSimmer.com
The Vortex Ring, Close Up, in Slow Motion. - YouTube
Vortex ring - Wikipedia
Vortex ring - Wikipedia
Experimental observation of vortex rings in a bulk magnet | Nature Physics
Can a VTOL jet such as the Harrier enter a Vortex Ring State? - Aviation Stack Exchange
Vortex rings may aid cell delivery, cell-free protein production | Cornell Chronicle
Mass production of shaped particles through vortex ring freezing | Nature Communications
Vortex ring with swirl: A numerical study: Physics of Fluids: Vol 22, No 9
File:Giant smoke ring.jpg - Wikimedia Commons
Scientists created 'smoke rings' of light
When Vortex Rings Collide | Hackaday
Vortex ring behavior provides the epigenetic blueprint for the human heart | Scientific Reports
Potential application of using vortex ring for personalized ventilation - Wang - 2020 - Indoor Air - Wiley Online Library
Vortex Cannon Belches Jumbo Smoke Rings « Science Experiments :: WonderHowTo
Vortex Ring - an overview | ScienceDirect Topics
Cartoon of the velocity flow around a vortex ring moving in the z... | Download Scientific Diagram
Vortex Rings
A schematic of the coordinate system and a typical vortex ring with swirl. | Download Scientific Diagram
Vortex Ring Cannon, improved version - YouTube
Vortex ring formation coupled with a translating bluff body | Journal of Fluid Mechanics | Cambridge Core
