A vortex ring, also called a toroidal vortex, is a torus -shaped vortex in a fluid; that is, a region where the fluid mostly spins around an imaginary axis line that forms a closed loop.

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 …

A vortex ring is defined as a closed-loop vortex tube formed by ejecting fluid from a circular opening, characterized by a concentrated core of vorticity that can vary in thickness relative to the ring's …

In our work we have focused on the dynamics of thin vortex rings. In particular we have studied their formation, their speed of propagation, drag and the influence of wave instabilities on the speed of …

What is a Vortex Ring? Vortex Ring, (sometimes called ‘settling with power’ or ‘power settling’) is a flight condition in which a helicopter that is receiving power from its engine (s) loses main rotor lift and …

Chapter 7 Vortex Rings Compared to isolated columnar vortex models with infinitely extended axes, some of which have certain inherently unrealistic properties, vortex rings of finite extent are a more …

Jan 6, 1999 · Smoke rings are probably the most commonly seen form of vortex ring, although if you allow a drop of cream to fall into a glass of water while watching it from the side or top, you'll see a …

Jul 16, 2023 · Gaining deeper insight into the formation of vortex rings, which are swirling, ring-shaped disturbances, could assist nuclear fusion scientists in more effectively compressing fuel. This would …

A vortex ring is a circular shaped ring of spinning gasses that move together as a unit. A vortex ring can happen in liquid or gasses, but are rarely seen because they happen inside of liquids or gases.

Jul 22, 2025 · A team of researchers discovered an extraordinary property of vortex rings—how dolphins propel themselves underwater—that science had overlooked for a century.