MOTS EN ANGLAIS EN RAPPORT AVEC «VORTEX STREET»
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encyclopedia
10 LIVRES EN ANGLAIS EN RAPPORT AVEC «VORTEX STREET»
Découvrez l'usage de
vortex street dans la sélection bibliographique suivante. Des livres en rapport avec
vortex street et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
7.6 The Karman vortex street The double row of staggered vortices behind a bluff
body that exists in a range of Reynolds number around 100 is a well-known
observation. Lamb [1932 §370a] refers to descriptions by Ahlborn (1902], Bdnard
...
2
Aufgaben Zur Strömungslehre:
If we place the temporal and spatial location of the vortex generation at infinity,
then the two infinitely long vortex rows will form an infinitely long "Karman vortex
street". The configuration is stable only for a certain ratio of h/l (= 0.281).
3
Vorticity and
Vortex Dynamics
The K ́arm ́an vortex- street model is the first and most famous example. Since
Strouhal's (1878) pioneer work, it has long been known that the Strouhal number
St due to vortex shedding is almost a constant around 0.2 at large Reynolds ...
Jie-Zhi Wu, Hui-yang Ma, M.-D. Zhou, 2007
4
Vortex Methods and
Vortex Motion
Top: vortex street behind a circular cylinder. Second row: vortex street behind a
pitching airfoil. Third row: vortex street formed in the boundary layer of a jet
issuing from a nozzle (Kelvin-Helmholtz instability). Bottom: vortex street formed
by the ...
Karl E. Gustafson, James A. Sethian, 1991
5
Flow Phenomena in Nature: A challenge to engineering design
It is instructive to visualize the vortex street which the airfoil generates while
hovering and which is required for thrust generation. A vortex street oblique to the
stroke plane was first visualized in 1989 [12] using smoke technique. In these ...
6
Issues in Mechanical Engineering: 2013 Edition
When the Reynolds number increases, the wake transitions from a steady flow to
a periodic von Karman vortex street as in a homogeneous fluid.” Our news
journalists obtained a quote from the research by the author, “However, the
presence ...
7
IUTAM Symposium on Hamiltonian Dynamics,
Vortex Structures, ...
The main tool used to find such arrangements is a differential equation,
analogous to the one just mentioned, that is satisfied by polynomials associated
with stationary and translating point vortex street configurations. With the help of
this ...
Alexey V. Borisov, Valery V. Kozlov, Ivan S. Mamaev, 2007
8
Pattern Formation and Lattice gas Automata
F. Hayot and L. Wagner Department of Physics The Ohio State University
Columbus, Ohio 43210 Abstract. We study the robustness of the vortex street
behind a circular cylinder when there is transfer of momentum between the wake
and the ...
9
Applied Hydrodynamics: An Introduction
This flow pattern is called a Karman vortex street, which was nicely illustrated by
Van Dyke (1982, front cover & pp. 4–5, 100 & 130). The movement of the
separation points causes an oscillating pressure at the cylinder surface which in
turn ...
3 we show a visualization of the reverse Ka ́rma ́n vortex street; called ''reverse''
because it consists of counterclockwise rotating upper row vortices and clockwise
rotating vortices in the lower row. This arrangement is the exact opposite of the ...
Graham Taylor, Michael S. Triantafyllou, Cameron Tropea, 2010
10 ACTUALITÉS CONTENANT LE TERME «VORTEX STREET»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
vortex street est employé dans le contexte des actualités suivantes.
These are von Kármán vortices
These turbulence patterns are known as von Karman vortex streets. In these images from NASA's Multi-angle Imaging SpectroRadiometer, an impressive vortex ... «EarthSky, juin 15»
Vortex bladeless turbines wobble to generate energy
This means that it can generate energy from the repeating pattern of vortices (known as the Kármán vortex street), which are generated as the air separates to ... «Gizmag, mai 15»
This giant straw is actually a vertical bladeless wind turbine
It works not by spinning in the wind, but by taking advantage of a phenomenon called vorticity, or the Kármán vortex street, which is a "repeating pattern of ... «Treehugger, mai 15»
Return to Dead Mountain
The resulting air vortices (small tornadoes), would have in turn produced ... So your theory is that a Kármán vortex street created vortices that passed by the ... «Failure Magazine, janv 14»
From natural disasters to mankind's urban sprawl: Stunning satellite …
These rows of oppositely spinning vortices, caused by the unsteady separation of flow of a fluid around ... This phenomena is known as Kármán Vortex Street. «Daily Mail, nov 13»
The Streets Are Paved with… Vortices?
These swirls are called von Kármán vortices, and the long chain of them gets the name von Kármán vortex streets. The cloud pattern makes them visible to the ... «Slate Magazine, avril 13»
Tropical storm Prapiroon and a von Karman vortex street
The decaying typhoon, tropical storm Prapiroon, is no threat to land, safely positioned 325 nautical miles south of Yokosuka, Japan, headed out to sea. That's not ... «Washington Post, oct 12»
Focus: Unexpected Turbulence in a Splash
A vortex street forming at the base of a droplet (red) as it strikes a liquid surface (blue). Figure caption. Down the street. A vortex street forming at the base of a ... «Physics, juin 12»
The Beautiful, Deadly Vortex That Tears Huge Buildings Apart
The Karman Vortex Street isn't someplace you'd want to take up residence — it's literally the path of destruction, where buildings collapse and destruction reigns ... «io9, févr 12»
Vortex creates nanowires
The particular pattern used is a line of vortices, which forms in the wake of the cylinder, known as a Karman vortex street. 'The same flow pattern exists in a ... «Chemistry World, déc 06»
