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Lookup NU author(s): Yibo Liang, Professor Longbin Tao, Dr Longfei Xiao
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© 2016 by ASME. Vortex-Induced-Motions (VIM) is a cyclic rigid body motion that is induced by vortex shedding of a large sized floating structure (Spar, Semi-Submersible and Tension-Leg Platform) in deep water. Since the potential impact of VIM on fatigue life of mooring and riser systems can be critical, the study of the VIM phenomenon has drawn considerable attention among offshore engineering community. Despite the effort, there is still lack of understanding the complex fluid-structure interaction phenomenon. To date, it is very much relying on the simplified empirical approach in practical design. Most of the Semi-Submersibles consist of four roundedcornered rectangular columns. To investigate the flow interaction between each columns can reveal some physics behind the VIM. In this study, flow past four stationary rounded-corner rectangular columns are tested in the circulating channel and numerically simulated by the Star-CCM+ CFD package. Forces on the columns and the flow characteristics behind the structures are present in this study. A 2-D particle imaging velocimetry (PIV) technic has been adopted in present study to obtain the flow characteristics. The aim of this study is to investigate the interactions between four square columns.
Author(s): Liang Y, Tao L, Xiao L, Liu M
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: ASME 2016 35th International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Year of Conference: 2016
Online publication date: 19/06/2016
Acceptance date: 02/04/2016
Publisher: American Society of Mechanical Engineers (ASME)
URL: http://doi.org/10.1115/OMAE2016-54609
DOI: 10.1115/OMAE2016-54609
Library holdings: Search Newcastle University Library for this item
ISBN: 9780791849927
