Vortex-induced vibration of a 5:1 rectangular cylinder: A comparison of wind tunnel sectional model tests and computational simulations

Nguyen, Dinh Tung and Hargreaves, David M. and Owen, John S. (2018) Vortex-induced vibration of a 5:1 rectangular cylinder: A comparison of wind tunnel sectional model tests and computational simulations. Journal of Wind Engineering and Industrial Aerodynamics, 175 . pp. 1-16. ISSN 0167-6105

[img] PDF - Repository staff only until 2 February 2019. - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Available under Licence Creative Commons Attribution Non-commercial No Derivatives.
Download (6MB)

Abstract

Considered to be representative of a generic bridge deck geometry and characterised by a highly unsteady flow

field, the 5:1 rectangular cylinder has been the main case study in a number of studies including the “Benchmark on the Aerodynamics of a Rectangular 5:1 Cylinder” (BARC). There are still a number of limitations in the knowledge of (i) the mechanism of the vortex-induced vibration (VIV) and (ii) of the turbulence-induced effect for this particular geometry. Extended computational and wind tunnel studies were therefore conducted by the authors to address these issues. This paper primarily describes wind tunnel and computational studies using a sectional model in an attempt to bring more insight into Point (i). By analysing the distribution and correlation of the surface pressure around an elastically mounted 5:1 rectangular cylinders in smooth and turbulent flow, it revealed that the VIV was triggered by the motion-induced leading-edge vortex; a strongly correlated flow feature close to the trailing edge was then responsible for an increase in the structural response.

Item Type: Article
Keywords: 5:1 rectangular cylinder; BARC; Vortex-induced vibration; Turbulent flow; Wind tunnel; LES simulation
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Civil Engineering
Identification Number: https://doi.org/10.1016/j.jweia.2018.01.029
Depositing User: Nguyen, Dinh
Date Deposited: 08 Mar 2018 11:14
Last Modified: 16 Apr 2018 13:40
URI: http://eprints.nottingham.ac.uk/id/eprint/50313

Actions (Archive Staff Only)

Edit View Edit View