Results 21 to 30 of about 23,344 (257)

Dynamics of global and local vortices with orientational moduli

open access: yesJournal of High Energy Physics, 2021
The dynamics of both global and local vortices with non-Abelian orientational moduli is investigated in detail. Head-on collisions of these vortices are numerically simulated for parallel, anti-parallel and orthogonal internal orientations where we find ...
Minoru Eto   +3 more
doaj   +1 more source

The Interaction of Two Surface Vortices Near a Topographic Slope in a Stratified Ocean

open access: yesFluids, 2017
We study the influence of bottom topography on the interaction of two identical vortices in a two-layer, quasi-geostrophic model. The two vortices have piecewise-uniform potential vorticity and are lying in the upper layer of the model. The topography is
Charly de Marez   +3 more
doaj   +1 more source

Numerical Computation of Turbulent Flow and Heat Transfer in a Radially Rotating Channel with Wall Conduction

open access: yesInternational Journal of Rotating Machinery, 2001
This work is concerned with numerical computation of turbulent flow and heat transfer in experimental models of a radially rotating channel used for turbine blade cooling.
Frank K. T. Lin   +3 more
doaj   +1 more source

Simplified model for helical vortex dynamics in the wake of an asymmetric rotor

open access: yesFlow, 2023
Helical vortex systems, such as those found in the wakes of wind turbines, helicopter rotors and propellers, are subject to instabilities that lead to pairing between adjacent vortex loops.
Aliza Abraham   +2 more
doaj   +1 more source

Flow Visualisation around Spinning and Non-Spinning Soccer Balls Using the Lattice Boltzmann Method

open access: yesProceedings, 2018
The drag and lift of footballs have been mainly measured by wind tunnel tests. In the present study, computational fluid dynamics (CFD) and the lattice Boltzmann method were used to visualise the wakes of spinning and non-spinning footballs and analyse ...
Takeshi Asai   +5 more
doaj   +1 more source

Numerical investigation of the collision of a vortex ring with a wavy sphere

open access: yesVietnam Journal of Science, Technology and Engineering
The numerical investigation of vortex dynamics resulting from the collision of a vortex ring with a wavy sphere of various wavenumbers (n) at a Reynolds number of 1000 was conducted using a developed remeshed vortex particle method. The influence of the
Nguyen Van Luc   +2 more
doaj   +1 more source

Vortex Dynamics of Oscillating Flows [PDF]

open access: yesArnold Mathematical Journal, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Vladimirov, V. A.   +2 more
openaire   +2 more sources

Geometric Characterization of Atmospheric Islands Formed by Two Point Vortices

open access: yesAxioms
Generically, in a system with more than three point vortices, there exist regions of stability around each vortex, even if the system is chaotic. These regions are usually called stability islands, and they have a morphology that is hard to characterize.
Gil Marques, Sílvio Gama
doaj   +1 more source

Fundamental vortices, wall-crossing, and particle-vortex duality

open access: yesJournal of High Energy Physics, 2017
We explore 1d vortex dynamics of 3d supersymmetric Yang-Mills theories, as inferred from factorization of exact partition functions. Under Seiberg-like dualities, the 3d partition function must remain invariant, yet it is not a priori clear what should ...
Chiung Hwang, Piljin Yi, Yutaka Yoshida
doaj   +1 more source

VORTEX DEVICES OF THE DIESEL AIR SUPPLY SYSTEM: MATHEMATICAL MODEL OF AERODYNAMIC PROCESSES

open access: yesВестник СибАДИ, 2020
Introduction. The calculation of effective indicators of the vortex ejector used in the diesel air supply system is a pressing task as it allows significantly reducing time for determination of rational design parameters at the design stage.
R. V. Yakimushkin
doaj   +1 more source

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