Vortex ring

Vortex ring
Vortex ring Vortex ring (Physics) A ring-shaped mass of moving fluid which, by virtue of its motion of rotation around an axis disposed in circular form, attains a more or less distinct separation from the surrounding medium and has many of the properties of a solid. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • Vortex ring — A vortex ring, also called a toroidal vortex, is a region of rotating fluid moving through the same or different fluid where the flow pattern takes on a doughnut shape. The movement of the fluid is about the poloidal or circular axis of the… …   Wikipedia

  • Vortex ring toys — A vortex ring is a rolling donut of fluid which is moving through another fluid. A smoke ring is a common example of a vortex ring. Because of the way they rotate, a vortex ring can hold itself together and travel for quite a distance.Vortex ring …   Wikipedia

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  • vortex ring state — The operating state of a helicopter main rotor in which the axial flow through the rotor is opposite to the axial flow outside the rotor disc area and to the rotor thrust. It is an unstable condition of powered flight in which the helicopter… …   Aviation dictionary

  • Vortex fringe — Vor tex fringe The region immediately surrounding a disk moving flatwise through air; so called because the air has a cyclic motion as in vortex ring. [Webster 1913 Suppl.] …   The Collaborative International Dictionary of English

  • Vortex — A vortex (pl. vortices ) is a spinning, often turbulent, flow of fluid. Any spiral motion with closed streamlines is vortex flow. The motion of the fluid swirling rapidly around a center is called a vortex. The speed and rate of rotation of the… …   Wikipedia

  • Vortex dynamics — In 1858 Hermann von Helmholtz published his seminal paper entitled Über Integrale der hydrodynamischen Gleichungen, welche den Wirbelbewegungen entsprechen, in Journal für die reine und angewandte Mathematik , vol. 55, pp.25 55. So important was… …   Wikipedia

  • vortex — n. (pl. vortexes or vortices) 1 a mass of whirling fluid, esp. a whirlpool or whirlwind. 2 any whirling motion or mass. 3 a system, occupation, pursuit, etc., viewed as swallowing up or engrossing those who approach it (the vortex of society). 4… …   Useful english dictionary

  • Vortex Weapons —    These weapons use an explosive charge to create and fire a doughnut shaped shock wave which travels at several hundred miles per hour, and spins at Mach 1 or faster. The weapon could also fire a vortex ring filled with gases or chemical agents …   The writer's dictionary of science fiction, fantasy, horror and mythology

  • ring whirl — žiedinis sūkurys statusas T sritis fizika atitikmenys: angl. circular vortex; ring whirl vok. Ringwirbel, m rus. кольцевой вихрь, m pranc. tourbillon annulaire, m …   Fizikos terminų žodynas

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