Results 21 to 30 of about 254,596 (292)

Vortex-induced vibrations of a long flexible cylinder in shear flow [PDF]

open access: yes, 2010
We investigate the in-line and cross-flow vortex-induced vibrations of a long cylindrical tensioned beam, with length to diameter ratio L/D = 200, placed within a linearly sheared oncoming flow, using three-dimensional direct numerical simulation.
Triantafyllou, Michael S.   +5 more
core   +1 more source

Vortex-induced vibration of circular cylinder with two degrees of freedom : CFD vs. reduced-order models [PDF]

open access: yes, 2013
This paper discusses vortex-induced vibration of circular cylinder with two degrees of ...
Xiao, Qing   +3 more
core   +3 more sources

Characterization of Flow Separation around Inline Cylinders within Oscillatory Flow

open access: yesShock and Vibration, 2018
This paper has examined the effects of Reynolds number (Re), Keulegan–Carpenter number (KC), and gap ratio on flow separation around a cylinder array by PIV method in experiment.
Yiding Zhao, Yao Shi
doaj   +1 more source

A Data-Driven Approach for Generating Vortex Shedding Regime Maps for an Oscillating Cylinder [PDF]

open access: yes, 2022
Recent developments in wind energy extraction methods from vortex-induced vibration (VIV) have fueled the research into vortex shedding behaviour.
Cann, Matthew
core  

Coupling Between Thermal Oscillations in the Surface of a Micro-Cylinder and Vortex Shedding [PDF]

open access: yes, 2007
his article studies the coupling between prescribed thermal oscillations in the surface of a micro-cylinder and vortex shedding. We deal with the unsteady, laminar, compressible flow regime where the aerodynamics forces have a periodic behavior.
J. L. Montanes   +5 more
core   +1 more source

Numerical Investigation on Unsteady Separation Flow Control in an Axial Compressor Using Detached-Eddy Simulation

open access: yesApplied Sciences, 2019
Unsteady excitation has proved its effectiveness in separation flow control and has been extensively studied. It is observed that disordered shedding vortices in compressors can be controlled by unsteady excitation, especially when the excitation ...
Mingming Zhang, Anping Hou
doaj   +1 more source

A numerical study of an inline oscillating cylinder in a free stream [PDF]

open access: yes, 2011
Simulations of a cylinder undergoing externally controlled sinusoidal oscillations in the free stream direction have been performed. The frequency of oscillation was kept equal to the vortex shedding frequency from a fixed cylinder, while the amplitude ...
Leontini, Justin S.   +5 more
core   +1 more source

Kármán vortex street in a two-component Bose–Einstein condensate

open access: yesNew Journal of Physics, 2019
Vortex shedding from a moving obstacle potential in a two-component Bose–Einstein condensate is investigated numerically. For a miscible two-component condensate composed of ^23 Na and ^87 Rb atoms, in the wake of obstacle, the Kármán vortex street is ...
Xiao-Lin Li   +6 more
doaj   +1 more source

Wake states and frequency selection of a streamwise oscillating cylinder [PDF]

open access: yes, 2013
This paper presents the results of an in-depth study of the flow past a streamwise oscillating cylinder, examining the impact of varying the amplitude and frequency of the oscillation, and the Reynolds number of the incoming flow.
Leontini, Justin S.   +2 more
core   +1 more source

Lock-in of the vortex-induced vibrations of a long tensioned beam in shear flow [PDF]

open access: yes, 2011
The occurrence of lock-in, defined as the local synchronization between the vortex shedding frequency and the cross-flow structural vibration frequency, is investigated in the case of a tensioned beam of length to diameter ratio 200, free to move in both
Rémi Bourguet   +5 more
core   +1 more source

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