Results 21 to 30 of about 8,199 (263)

THE INFLUENCE OF FEATURES OF VORTEX FLOW ON AERODYNAMIC CHARACTERISTICS OF THE SUPERSONIC MANEUVERABLE AIRCRAFT MODEL

open access: yesНаучный вестник МГТУ ГА, 2019
The paper presents the influence of the vortex flow features, in particular, the phenomenon of vortex burst on the longitudinal and lateral aerodynamic characteristics of the maneuverable aircraft model with a sharp-edged fore-body.
K. A. Osipov
doaj   +1 more source

Experimental Investigation of the Generation of a Longitudinal Vortex in a Transverse Synthetic Jet with Different Excitation Frequencies

open access: yesJournal of Fluid Science and Technology, 2011
In this paper, experimental study was undertaken to investigate the effect of excitation frequency of a synthetic jet on the generation of a longitudinal vortex produced by the interaction between a jet and a crossflow in a wind tunnel.
Hiroaki HASEGAWA, Kazuya TAKAHASHI
doaj   +1 more source

Enhancement of Optical Spin-Orbit Coupling in Anisotropic ENZ Metamaterials

open access: yesIEEE Photonics Journal, 2023
Vector vortex beams which possess complex intensity and polarisation patterns, and phase or polarisation singularities are important in a variety of applications ranging from high resolution imaging and data transmission to nonlinear optics and quantum ...
Vittorio Aita, Anatoly V. Zayats
doaj   +1 more source

Generation of Arbitrary Longitudinal Polarization Vortices by Pupil Function Manipulation

open access: yesAdvanced Photonics Research, 2021
The properties of optical vortex provide new insights into a wide range of optical and physical phenomena, giving rise to numerous applications in multiple disciplines. Notably, as much as the associated technologies have become increasingly flexible, it
Xin Liu   +6 more
doaj   +1 more source

Energy Backflow in Tightly Focused Fractional Order Vector Vortex Beams with Binary Topological Charges

open access: yesPhotonics, 2023
Using the Richards–Wolf diffraction integral, the longitudinal energy evolution on the focal plane of the fractional order vector vortex (FOVV) beams was studied. These beams possessed a vortex topological charge n and a polarization topological charge m,
Yan Wu, Xiaobo Hu, Yuhua Li, Ruipin Chen
doaj   +1 more source

The Impact of Polar Vortex Strength on the Longitudinal Structure of the Noontime Mid-Latitude Ionosphere and Thermosphere

open access: yesRemote Sensing
Ground-based ionospheric, CHAMP/STAR, and GOCE satellite neutral density ρ observations under deep solar minimum conditions were used to find whether there is a dependence of longitudinal variations on polar vortex strength. Ionospheric stations at fixed-
Loredana Perrone, Andrey Mikhailov
doaj   +1 more source

Longitudinal and transverse forces on a vortex in superfluid4He [PDF]

open access: yesJournal of Physics: Condensed Matter, 1999
10 pages, 2 figures, latex2e (iopart.cls), enlarged version submitted to J.
Cataldo, H. M.   +2 more
openaire   +2 more sources

Study on Flow Structure Characteristics Along the Latticework Duct Subchannels and Classification Boundary Prediction

open access: yesAerospace
To reasonably divide the types of flow units along the latticework subchannel, one must prepare for the establishment of a one-dimensional fluid network model of the latticework in the middle region of the turbine blade.
Minlong Li   +4 more
doaj   +1 more source

Influence of Cross-Sectional Configuration on the Longitudinal Vortex Excitation of the Upstream Cylinder in Cruciform Two-Cylinder System

open access: yesJournal of Fluid Science and Technology, 2006
In earlier works by the present authors, it was shown that a large cross-flow excitation is induced to a circular cylinder by setting another cylinder downstream in a cruciform arrangement with a certain gap between them, caused by longitudinal vortices ...
Naoto KATO   +3 more
doaj   +1 more source

Longitudinal vortex structure in the flow field produced by a vortex ring impinging on a flat plate

open access: yesFluid Dynamics Research, 2001
The flow field produced by a vortex ring at Re = 2600 impinging on a flat plate was examined in detail using the smoke visualization method. The longitudinal vortex structure with a finger-like configuration was found which plays a crucial role in forming azimuthal coherent structures with a cross section that resembles that of an orange; the ...
NAITOH, Takashi   +2 more
openaire   +1 more source

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