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DNS Study on Vorticity Structures in Late Flow Transition [PDF]
The Physics of Fluids, 2018 Vorticity and vortex are two different but related concepts. This paper focuses on the investigation of vorticity generation and development, and vorticity structure inside/ outside the vortex. Vortex is a region where the vorticity overtakes deformation.
Dong, Xiangrui +2 more
core +2 more sources
Defining coherent vortices objectively from the vorticity [PDF]
Journal of Fluid Mechanics, 2016 Rotationally coherent Lagrangian vortices are formed by tubes of deforming fluid elements that complete equal bulk material rotation relative to the mean rotation of the deforming fluid volume. We show that the initial positions of such tubes coincide with tubular level surfaces of the Lagrangian-averaged vorticity deviation (LAVD), the trajectory ...
Haller, George +3 more
openaire +6 more sources
Influence of Superhydrophobic Coatings on Turbulence and Vortical Structures in a Submerged Impinging Jet [PDF]
NanomaterialsThe impact of liquid jets on solid surfaces is a critical hydrodynamic mechanism in applications like cooling and cleaning. Surface properties, particularly superhydrophobicity, can significantly alter flow development throughout the impingement process.
Delfino Cornejo-Monroy +5 more
doaj +2 more sources
Tropical Cyclone Research and ReviewTo investigate the multiscale interaction characteristics of Landfall Typhoon Lekima (2019), this study analyzed the characteristics of the different scale vortex structure and interactions among different scales based on vorticity equation diagnosis ...
Wenbo Xue, Hui Yu, Shengming Tang
doaj +2 more sources
Second integral generalization of the Crocco invariant for 3D flows behind detached bow shock wave [PDF]
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2021 Stationary flows of an ideal gas behind the detached bow shock are investigated in the general 3D case. The well-known integral invariant (V.N.Golubkin, G.B.Sizykh, 2019), generalizing the axisymmetric invariant of (L.Crocco, 1937) to asymmetric flows ...
Grigory Sizykh
doaj +1 more source
Polarization and Vorticity in the Quark–Gluon Plasma [PDF]
Annual Review of Nuclear and Particle Science, 2020 The quark–gluon plasma (QGP) produced by collisions between ultrarelativistic heavy nuclei is well described in the language of hydrodynamics. Noncentral collisions are characterized by very large angular momentum, which in a fluid system manifests as ...
F. Becattini, M. Lisa
semanticscholar +1 more source
On Vorticity Dynamics in Turbulent Wake behind Circular Cylinder [PDF]
MATEC Web of Conferences, 2022 The circular cylinder turbulent wake is studied experimentally using Particle Image Velocimetry (PIV) method. The vorticity component parallel to the cylinder axis is evaluated from measured velocity field.
Uruba Václav, Procházka Pavel
doaj +1 more source
Laboratory Study on the Entrainment Process in Overflow
Journal of Marine Science and Engineering, 2023 During the sinking process, overflow generates an entrainment phenomenon, accompanied by the occurrence, development, and dissipation of vortices. In this paper, particle image velocimetry (PIV) technology is used to measure the flow fields of overflow ...
Qiyue Hu +5 more
doaj +1 more source
An Analysis of Air Flow in the Baking Chamber of a Tunnel-Type Electric Oven
Computation, 2023 The baking process in tunnel ovens can be influenced by many parameters. Among these, the most important can be considered as: the baking time, the volume of dough pieces, the texture and humidity of the dough, the distribution of temperature inside the ...
Gabriel-Alexandru Constantin +4 more
doaj +1 more source
Engineering Applications of Computational Fluid Mechanics, 2021 Vortex is the dominant flow structure in hydro-energy machinery, and its swirling features are mainly determined by the rigid rotation part of vorticity.
Chaoyue Wang +3 more
semanticscholar +1 more source