Results 11 to 20 of about 44,492 (300)
Investigation of Fractal Characteristics of Karman Vortex for NACA0009 Hydrofoil
Fractal and Fractional, 2023 A Karman vortex is a phenomenon of fluid flow that can cause fluctuation and vibration. As a result, it leads to fatigue damage to structures and induces safety accidents.
Fangfang Zhang +4 more
doaj +1 more source
Vortex Shedding and Modal Behavior of a Circular Cylinder Equipped with Flexible Flaps [PDF]
, 2019 When a cylinder is subject to a flow, vortices will be shed that can lead to strong tonal noise. The modification of the cylinder with soft, flexible flaps made of silicone rubber has been shown to affect the vortex shedding cycle in a way that the ...
Brücker, C. +3 more
core +1 more source
Application of lattice constructions for protection of high-rise chimneys from vortex shedding [PDF]
E3S Web of ConferencesConsideration of vortex shedding response is important for high-rise chimneys when air flow causes strong vibrations of the structure in a certain range of wind speeds when the frequency of natural vibrations of the structure coincides with the frequency
Sergey Saiyan +3 more
doaj +1 more source
Investigation into the Strouhal numbers associated with vortex shedding from parallel-plate thermoacoustic stacks in oscillatory flow conditions [PDF]
, 2010 This paper investigates vortex shedding processes occurring at the end of a stack of parallel plates, due to an oscillating flow induced by an acoustic standing wave.
Jaworski, Arthur J. +2 more
core +1 more source
Numerical Assessment of Flow Energy Harvesting Potential in a Micro-Channel
Fluids, 2023 A micro-energy harvesting device proposed in the literature was numerically studied. It consists of two bluff bodies in a micro-channel and a flexible diaphragm at its upper wall.
Dimitrios G. Koubogiannis +1 more
doaj +1 more source
Journal of Marine Science and Engineering, 2023 Cylindrical structures are widely used in offshore and marine engineering, but they may suffer from vortex-induced vibration under the influence of ocean or wave currents, which can lead to severe fatigue damage. In this study, we applied the open-source
Hongwu Zhao, Yeon-Won Lee
doaj +1 more source
Optimal control of circular cylinder wakes using long control horizons [PDF]
, 2015 The classical problem of suppressing vortex shedding in the wake of a circular cylinder by using body rotation is revisited in an adjoint-based optimal control framework.
Colonius, Tim, Flinois, Thibault L. B.
core +3 more sources
Vortex shedding in a model of superflow [PDF]
Physica D: Nonlinear Phenomena, 1999 The present article represents part of the PhD. dissertation by C. Josserand. We discuss the nucleation of quantized vortices in the nonlinear Schrödinger equation (NLS) for a flow around a disk in two spatial dimensions. It appears that the vortices are nucleated when the flow becomes locally (at the edge of the disk) supersonic.
Josserand, C., Pomeau, Y., Rica, S.
openaire +3 more sources
Prediction method of hydrofoil vortex shedding frequency at high Reynolds numbers
Zhongguo Jianchuan Yanjiu, 2019 [Objectives] Flow around hydrofoils under high Reynolds number is always a hot topic in hydrodynamic field due to its complicated principle and difficult calculation. The Discrete Vortex Model (DVM) based on vorticity and stream function formulation is a
Hou Lei +5 more
doaj +1 more source
Fluids, 2020 Vortex cavitation can appear in the wake flow of hydrofoils, inducing unwanted consequences such as vibrations or unstable behaviors in hydraulic machinery and systems.
Jian Chen, Linlin Geng, Xavier Escaler
doaj +1 more source