The two-dimensional point vortex gas is a discrete particle model used to study turbulence in two-dimensional ideal fluids. The two-dimensional guiding-center...
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Vorticity (redirect from Vortex line)
'strength' of the vortex tube is also constant with time. Viscous effects introduce frictional losses and time dependence. In a three-dimensional flow, vorticity...
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vortex ring is said to be toroidal, more precisely poloidal.[clarification needed] Vortex rings are plentiful in turbulent flows of liquids and gases...
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quantum vortex. Quantum vortices are observed experimentally in type-II superconductors (the Abrikosov vortex), liquid helium, and atomic gases (see Bose–Einstein...
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Quantum turbulence (section Properties of vortex lines)
form of turbulence might be possible in a superfluid via the quantized vortex lines was first suggested by Richard Feynman. The dynamics of quantum fluids...
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Wingtip vortices (redirect from Wingtip vortex)
between the two vortices.: 8.1.1 Three-dimensional lift and the occurrence of wingtip vortices can be approached with the concept of horseshoe vortex and described...
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ultracold gas Bose-Einstein condensates, when the healing length setting the vortex core size is very small compared to the system size. Point vortices...
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Bose–Einstein condensate (redirect from Quantentheorie des einatomigen idealen Gases)
with wavelength-scale mirror separation, forming a two-dimensional harmonically confined photon gas with tunable chemical potential. BEC of plasmonic quasiparticles...
87 KB (10,731 words) - 05:38, 30 June 2025
is a phase transition of the two-dimensional (2-D) XY model in statistical physics. It is a transition from bound vortex-antivortex pairs at low temperatures...
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Computational fluid dynamics (redirect from Vortex method)
supplanted by a locally fully developed assumption. One-dimensional Euler equations or one-dimensional gas-dynamic equations (1D-EE): Start with the EE. Assume...
68 KB (8,651 words) - 09:54, 11 July 2025
divergence in the specific heat. Indeed, like the one-dimensional Ising model, the one-dimensional XY model has no phase transitions at finite temperature...
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Potential flow (redirect from Two-dimensional potential flow)
production is zero. Shock waves at the pointed leading edge of two-dimensional wedge or three-dimensional cone (Taylor–Maccoll flow) has constant intensity. 2)...
35 KB (5,209 words) - 17:01, 14 July 2025
Physics of whistles (section Vortex whistle)
right with a water jet. The laminar two-dimensional jet amplifies small disturbances at the orifice to generate a vortex street. For this case, the flow speed...
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spectroscopy Tweeter, Plasma or Ion tweeter Two-dimensional guiding-center plasma Two-dimensional point vortex gas Two-stream instability U-HID, Ultra High Intensity...
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Superfluidity (section Cold atomic gases)
been observed in an ultracold bosonic gas using rubidium-87 in 2000, and more recently in two-dimensional gases. As early as 1999, Lene Hau created such...
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Two-dimensional nuclear magnetic resonance spectroscopy Two-dimensional point vortex gas Two-phase flow Two-photon absorption Two-photon physics Two-state...
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1103/PhysRevB.46.6760. PMID 10002377. Montgomery, D. C. (1972). "Two-dimensional vortex motion and "negative temperatures"". Physics Letters A. 39 (1):...
30 KB (3,988 words) - 19:48, 27 May 2025
Superfluid helium-4 (section Vortex ring model)
existence of quantized vortex lines in superfluid helium. In the 1960s, Rayfield and Reif established the existence of quantized vortex rings. Packard has...
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and ∇h is the 2-dimensional (i.e. horizontal-component-only) del. Vorticity Barotropic vorticity equation Vortex stretching Burgers vortex Fetter, Alexander...
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Ising. The one-dimensional Ising model was solved by Ising (1925) alone in his 1924 thesis; it has no phase transition. The two-dimensional square-lattice...
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and three dimensional. For example, atmospheric cyclones are rotational but their substantially two-dimensional shapes do not allow vortex generation...
47 KB (5,591 words) - 14:52, 12 July 2025
Communication (1984), Off-Gas Temperature Measurement Case Permana, Yhenda (1995) "Thermowell failure as a result of vortex shedding phenomena", Vibration...
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Kosterlitz–Thouless transition in the two-dimensional XY model. Many quantum phase transitions, e.g., in two-dimensional electron gases, belong to this class. The...
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flow, flows that were previously limited to one-dimensional problems could be pushed to three-dimensional models. Projects to develop multiphase flow metering...
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Flow measurement (redirect from Gas mass velocity)
the number of times the volume is filled to measure flow. Fluid dynamic (vortex shedding) Anemometer Ultrasonic flow meter Mass flow meter (Coriolis force)...
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one dimensional instantaneous point source we consider a mass M {\displaystyle M} released at an instantaneous point in time, in a one dimensional domain...
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transformed to a system one-dimensional noninteracting spinless fermions. The nonlinear Schrödinger equation is a simplified 1+1-dimensional form of the Ginzburg–Landau...
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pressures, atoms form the three classical states of matter: solid, liquid and gas. Complex molecules can also form various mesophases such as liquid crystals...
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type of quasiparticle so far observed only in two-dimensional systems. In three-dimensional systems, only two kinds of elementary particles are seen: fermions...
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which is known as a potential vortex in fluid mechanics. "Ricerca Italiana - PRIN - Global stability of three-dimensional flows". Archived from the original...
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