Results 61 to 70 of about 43,945 (204)
3D vortex formation of rigid and flexible plates in impulsively starting motion [PDF]
, 2008 This fluid dynamics video shows three-dimensional vortex formation process for plates in impulsive motion which is investigated experimentally by using defocusing digital particle image velocimetry (DDPIV).
Gharib, Morteza, Kim, Daegyoum
core +1 more source
Jet pumps for thermoacoustic applications: design guidelines based on a numerical parameter study [PDF]
, 2015 The oscillatory flow through tapered cylindrical tube sections (jet pumps) is characterized by a numerical parameter study. The shape of a jet pump results in asymmetric hydrodynamic end effects which cause a time-averaged pressure drop to occur under ...
ANSYS +8 more
core +4 more sources
Oscillations of cometary tails: a vortex shedding phenomenon? [PDF]
Astronomy & Astrophysics, 2018 Context. During their journey to perihelion, comets may appear in the field of view of space-borne optical instruments, showing in some cases a nicely developed plasma tail extending from their coma and exhibiting an oscillatory behaviour. Aims. The oscillations of cometary tails may be explained in terms of vortex shedding because of the interaction ...
Nistico G. +4 more
openaire +4 more sources
Predicting the vortex shedding frequency at the interface of the lateral cavities
E3S Web of Conferences, 2018 The vortex shedding frequency in the mixing layer between a cavity and a main stream has been examined experimentally in absence of large oscillation of the free surface inside the cavity, called seiching.
Perrot-Minot Clément +3 more
doaj +1 more source
Some Modelling Issues on Trailing Edge Vortex Shedding [PDF]
Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, 1999 A numerical study has been carried out to investigate modelling issues on trailing edge vortex shedding. The vortex shedding from a circular cylinder and a VKI turbine blade is calculated using a 2-D unsteady multi-block Navier-Stokes solver. The unsteady stresses are calculated from the unsteady solutions.
Ning, W., He, L.
openaire +1 more source
Three dimensionality in the wake of the flow around a circular cylinder at Reynolds number 5000 [PDF]
, 2017 The turbulent flow around a circular cylinder has been investigated at Re=5000Re=5000 using direct numerical simulations. Low frequency behavior, vortex undulation, vortex splitting, vortex dislocations and three dimensional flow within the wake were ...
Aljure Osorio, David E. +3 more
core +2 more sources
AIP Advances, 2021 The turbulent flow past a wall-mounted square cylinder with an aspect ratio of 4 was investigated with the aid of Spalart–Allmaras improved delayed detached-eddy simulation and proper orthogonal decomposition (POD) analysis. The Reynolds number was equal
Mustafa Z. Yousif, HeeChang Lim
doaj +1 more source
, 2015 We numerically study the vortex-vortex interaction in multi-component homogeneous Bose-Einstein condensates within the realm of the Gross-Pitaevskii theory.
Almeida, C. A. S. +5 more
core +1 more source
Vortex shedding in a two-dimensional diffuser: theory and simulation of separation control by periodic mass injection [PDF]
, 2004 We develop a reduced-order model for large-scale unsteadiness (vortex shedding) in a two-dimensional diffuser and use the model to show how periodic mass injection near the separation point reduces stagnation pressure loss.
Colonius, Tim +2 more
core +1 more source
Dynamic Optimization for Vortex Shedding Suppression
MATEC Web of Conferences, 2016 Flows around structures exhibiting vortex shedding induce vibrations that can potentially damage the structure. A way to avoid it is to suppress vortex shedding by controlling the wake.
Bonis Ioannis +2 more
doaj +1 more source