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Vortex-Induced Vibrations of a Square Cylinder with Damped Free-End Conditions
Joint Authors
Khawar, J.
Manzoor, S.
Sheikh, Nadeem Ahmed
Source
Advances in Mechanical Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-03-31
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
The authors report the results of vortex-induced vibrations of a square cylinder in a wind tunnel.
This constitutes a high mass ratio environment.
The square cylinder is mounted in the wind tunnel in such a fashion that it only performs rigid body oscillations perpendicular to the flow direction with damped free-end conditions.
This physical situation allows a direct evaluation for analytical models relying on simplified 2D assumptions.
The results are also compared with two-dimensional fluid-structure (CFD-CSD) numerical simulations.
The comparison shows that despite having one-dimensional motion, the analytical model does not predict the VIV region with correctness.
Results show that the numerical simulations and experimental results differ from the analytical model for the prediction of reduced velocity corresponding to peak amplitude.
Also the analytical reduced velocity envelope is underpredicted compared to both numerical simulations and experimental data despite the structure being lightly damped.
The findings are significant as the experimental results for freely oscillating high mass ratio body show differences from the low mass ratio especially in the transition between VIV and galloping regions.
However the numerical simulations show comparatively close agreement.
American Psychological Association (APA)
Manzoor, S.& Khawar, J.& Sheikh, Nadeem Ahmed. 2013. Vortex-Induced Vibrations of a Square Cylinder with Damped Free-End Conditions. Advances in Mechanical Engineering،Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-454300
Modern Language Association (MLA)
Manzoor, S.…[et al.]. Vortex-Induced Vibrations of a Square Cylinder with Damped Free-End Conditions. Advances in Mechanical Engineering No. 2013 (2013), pp.1-12.
https://search.emarefa.net/detail/BIM-454300
American Medical Association (AMA)
Manzoor, S.& Khawar, J.& Sheikh, Nadeem Ahmed. Vortex-Induced Vibrations of a Square Cylinder with Damped Free-End Conditions. Advances in Mechanical Engineering. 2013. Vol. 2013, no. 2013, pp.1-12.
https://search.emarefa.net/detail/BIM-454300
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-454300