Journal ArticleDOI
Reynolds number effects on aerodynamic characteristics and vortex-induced vibration of a twin-box girder
Hui Li,Shujin Laima,Haiquan Jing +2 more
TLDR
In this article, an experimental investigation of Reynolds number effects on aerodynamic characteristics and vortex-induced vibration (VIV) of a twin-box girder was performed, and the results indicated that all the aerodynamic properties have obvious Reynolds number sensitivity.About:
This article is published in Journal of Fluids and Structures.The article was published on 2014-10-01. It has received 32 citations till now. The article focuses on the topics: Strouhal number & Reynolds number.read more
Citations
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Journal ArticleDOI
Data-driven modeling of vortex-induced vibration of a long-span suspension bridge using decision tree learning and support vector regression
Shanwu Li,Shujin Laima,Hui Li +2 more
TL;DR: In this article, a data-driven approach using a machine learning (ML) scheme is proposed to model VIV response based on a database of field-measured VIVs for a full-scale long-span suspension bridge over six recent years.
Journal ArticleDOI
Experimental study on the effect of Reynolds number on aerodynamic performance of high-speed train with and without yaw angle
TL;DR: In this paper, the influence of the Reynolds number on the aerodynamic force and pressure of a train was investigated experimentally at yaw angles of 0° and 15°, and the results showed that the lift coefficient increased with an increase in Reynolds number at a yaw angle of 15°.
Journal ArticleDOI
Discovering time-varying aerodynamics of a prototype bridge by sparse identification of nonlinear dynamical systems
TL;DR: Data-driven methods are proposed to reveal the time-varying aerodynamics of the wind-bridge system during VIV events based on field measurements on a long-span suspension bridge and the level of self-excited effects is found to be significantly time varying with the real-time wind speed and bridge motion state.
Journal ArticleDOI
Effects of gap width on flow motions around twin-box girders and vortex-induced vibrations
Shujin Laima,Hui Li +1 more
TL;DR: In this paper, the effects of gap width on the flow characteristics at Re=5.58×104 and the vortex-induced vibration (VIV) of a twin-box girder at about Re=1.17×104 were experimentally investigated using a sectional model.
Journal ArticleDOI
Effects of attachments on aerodynamic characteristics and vortex-induced vibration of twin-box girder
TL;DR: In this paper, the effects of attachments on the aerodynamic characteristics and vortex-induced vibration (VIV) of a twin-box girder were investigated and compared with a bare deck in detail.
References
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Journal ArticleDOI
Vortex Dynamics in the Cylinder Wake
TL;DR: A review of wake vortex dynamics can be found in this article, with a focus on the three-dimensional aspects of nominally two-dimensional wake flows, as well as the discovery of several new phenomena in wakes.
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A critical review of the intrinsic nature of vortex-induced vibrations
TL;DR: A comprehensive review of the progress made during the past two decades on vortex-induced vibration (VIV) of mostly circular cylindrical structures subjected to steady uniform flow is presented in this article.
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Fluctuating lift on a circular cylinder: review and new measurements
TL;DR: In this article, the effects of Reynolds number in the nominal case of an infinitely long and non-confined cylinder in a smooth oncoming flow are discussed, from about Re = 47 to 2 x 10(5), i.e., from the onset of vortex shedding up to the end of the subcritical regime.
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Unsteady measurements in a separated and reattaching flow
TL;DR: In this paper, it is shown that throughout the separation bubble a low-frequency motion can be detected which appears to be similar to that found in other studies of separation, leading to a weak flapping of the shear layer.
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Perspectives on bluff body aerodynamics
TL;DR: In this paper, the variations of drag and base suction of circular cylinders and bluff plates over the range of Reynolds number from 10 to 10^7 are discussed, with emphasis on the importance of the separated shear layers.