A Solution for Wind-Induced Vortex-Shedding Vibration of the Harmony and Heritage Platforms During Transpacific Tow
This paper describes the results of an advanced procedure for analyzing wind-induced vortex-shedding vibration (VSV) which was used for the transpacific tows of the Harmony and Heritage...

Vortex Shedding in Tall Stacks and Vessels: Introduction
This chapter introduces the subject of vortex shedding....

Vortex Shedding in Tall Stacks and Vessels
This chapter discusses the tabulation of vortex shedding data in Microsoft Excel....

Role of Vortex-Excited Vibrations in Damage to Power Poles in Hurricane Andrew

Wind Tunnel Testing for the Great Belt East Suspension Bridge
This paper provides an overview of model tests conducted to study and predict the aerodynamic behavior of the proposed streamlined box-girder suspension bridge for the Great Belt Link....

Vortex Shedding Induced Fatigue Fracture of Mast Tower
The fracture of a pair of 60m high circular steel masts is investigated. The design criteria and fabrication practices are reviewed. The cause of failure is related to the fatigued condition...

Effect of the Earth Rotation on Tide Induced Sediment Transport
Semi-enclosed seas are generally composed of narrow straits and wide basins, forming a strait-basin system. In the strait-basin system where tidal current prevails, the strong tidal current...

Flow Measurement in Irrigation Practice: State-of-the-Art
State-of-the-art flow metering developments for irrigation are reviewed. Selected older methods are updated with recent improvements. These include orifice meters, venturi meters, critical-flow...

Forces Acting on a Vortex-Excited Vibrating Cylinder in Planar Oscillatory Flow
An experimental investigation into the vortex-excited vibration of a circular cylinder in planar oscillatory flow has been made with emphasis being placed on the amplification of the forces...

Aerodynamic Methods for Mitigating Wind-Induced Building Motions
Excessive wind-induced motions of tall buildings most frequently result from vortex shedding induced across-wind oscillations. This form of excitation is most pronounced for relatively...

Separation Angle Effect on Vortex Shedding Frequency
Vortex shedding frequencies were measured for a number of two-dimensional bluff bodies whose boundary layers separation angles ranged from 0°-90° to the oncoming flow. Strouhal numbers...

Emitter Discharge Sensitivity to Pressure and Temperature
The discharge sensitivities to pressure and temperature of three types of emitters (helical long-path, labyrinth and vortex-type emitters) were determined in the laboratory. The measured...

Vortex-Excited Vibrations of Marine Cables
Recent experiments to study vortex-excited cable strumming in towing basins and at field sites are compared in this paper to small-scale laboratory experiments. The resonant cable strumming...

Natural Frequencies of Axially Loaded Bridge Members
The purpose of this paper is to present some formulas that can be used to check the aerodynamic stability of the more typical bridge members having two axes of symmetry. The principal...

Formation and Reversal of Vortices around Circular Cylinders Subjected to Water Waves
Flow around circular cylinders has been studied for more than a century, but the mechanism of vortex shedding remains a puzzle. The basic feature of the phenomenon is the formation of...

Base Pressure of Oscillating Circular Cylinders
Experiments have been made to investigate the base pressure coefficients of circular cylinders oscillating transversely in a stream for a wide range of cylinder amplitudes and frequencies....

Cross-Flow Response of Piles Due to Ocean Waves
Dynamic response of continuous structures due to ocean wave forces is investigated. The wave forces induced by vortex shedding are considered. The fluctuating wave velocity field is taken...

Vortex-Excited Oscillations of Elastic Cylinders

Computer Model of Vortex Shedding from a Cylinder
A mathematical model of unsteady flow around a cylinder gives lift, drag, and velocity fluctuations in reasonable agreement with experimental results. Vorticity is represented by element...

Lift-Oscillator Model of Vortex-Induced Vibration
The main feature is the representation of fluctuating lift behavior in terms of a proposed wake-oscillator. The primary purpose of the paper is to demonstrate the potential of the wake-oscillator...

 

 

 

 

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