As the air stream emerges from the device room air drags the outside of the stream slowing it down The center of the air stream continues to move forward causing the air stream to curl to the outside in the direction of the yellow arrows ID: 145783
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Slide1
Vortex Ring Cannon
As the air stream emerges from the device, room air drags the outside of the stream, slowing it down. The center of the air stream continues to move forward, causing the air stream to curl to the outside, in the direction of the yellow arrows.Slide2
Vortex Ring
Air flow in the
toroidal
vortex, as viewed from the front.Slide3
Irrotational Vortex
Movement of air molecules in a cross section of the ring. The air molecules towards the interior move faster than molecules towards the exterior, in accordance with the conservation of angular momentum.Slide4
Particle trajectory
Motion of a smoke particle in the ring. The trajectory results from a combination of the rotational motion around the interior of the ring and the forward motion of the ring as a whole.