Within a stationary body of fluid, a vortex ring can travel for relatively long distance, carrying the spinning fluid with it. In a typical vortex ring, the fluid particles move in roughly circular paths around an imaginary circle (the core) that is perpendicular to those paths.

Jun 2, 2024 · More formally known as a toroidal vortex, a vortex ring is a vortex of a fluid or gas that forms around an imaginary axis line in the form of a closed loop. Basically, it looks like a ring of water or air, spinning tightly around itself and temporarily maintaining its shape and form.

When an air bubble occupies the core of the vortex a ring-shaped underwater bubble forms. The ring bubble and the surrounding water spins in a poloidal manner as they travel through the water....

A vortex is a portion of fluid rotating about an axis line. Vortexes or vortices exist in nature in a number of forms such as tornadoes, hurricanes, whirlpools, etc. A vortex can also be observed in real life easily by spinning a water bottle, draining the sink, swirling the cup of tea, etc.

A vortex ring is defined as a doughnut-shaped vorticity structure that is typically generated when a compact buoyant anomaly is released into a fluid and propagates upwards. AI generated definition based on: Geophysical Convection Dynamics, 2023

Mar 3, 2013 · Here we report the creation of isolated trefoil vortex knots and pairs of linked vortex rings in water using a new method of accelerating specially shaped hydrofoils. Using a high-speed scanning...

Feb 3, 2014 · A vortex ring is a doughnut-shaped phenomenon where fluids or gases knot and spin in a closed, usually circular loop. The physics of vortex rings is the same as that which gives stability to tornadoes, volcanic eruptions and mushroom clouds.

Aug 29, 2013 · These water-based vortices are invisible to the eye, but cetaceans blow air into the vortex, which gets caught up in the core of spinning water as bubbles and forms a visible ring. The rings are surprisingly stable and persist in the water for a long time.

Jun 20, 2015 · At the vortex there is a vortex ring / Toroidal vortice at the top of the Vortex, and this causes the reflection as seen. Between the forced vortex and Free vortex the fluid is "cut" and there is a surface inside the fluid which reflects the light.

A bubble ring, or toroidal bubble, is an underwater vortex ring where an air bubble occupies the core of the vortex, forming a ring shape. The ring of air as well as the nearby water spins poloidally as it travels through the water, much like a flexible bracelet might spin when it is rolled on to a person's arm.