The effect of a screen shroud on vortex-induced vibration of a circular cylinder and its wake characteristics

A.M. Azmi, Tongming Zhou, Y. Zhou, J. Chen, Liang Cheng

    Research output: Chapter in Book/Conference paperConference paper

    6 Citations (Scopus)

    Abstract

    Copyright © 2015 by the International Society of Offshore and Polar Engineers (ISOPE). This paper aims to investigate the effect of a screen cylinder on vortex-induced vibration (VIV) of a circular cylinder and to understand the wake characteristics behind the shrouded cylinder using a high porosity (67%) screen mesh. The diameter ratio between the screen cylinder and the solid cylinder is 2. VIV test is conducted first and phase-averaged analysis is used later to examine the vortex structures at x/d = 5-40 in a wind tunnel. It is found that the screen shroud can suppress VIV by about 78%. Phase-averaged analysis of the shrouded cylinder at a low Reynolds number, however, showed a substantial vortex development with significant strength of the coherent structures.
    Original languageEnglish
    Title of host publicationProceedings of the25th (2015) International Offshore and Polar Engineering Conference
    Place of PublicationColorado, USA
    PublisherInternational Society of Offshore and Polar Engineers
    Pages1086-1092
    Volume3
    ISBN (Print)9781880653890
    Publication statusPublished - 2015
    Event25th International Ocean and Polar Engineering Conference - Kona, United States
    Duration: 21 Jun 201526 Jun 2015
    Conference number: 25
    http://www.isope.org/publications/proceedings/ISOPE/ISOPE%202015/

    Conference

    Conference25th International Ocean and Polar Engineering Conference
    Abbreviated titleISOPE 2015
    CountryUnited States
    CityKona
    Period21/06/1526/06/15
    Internet address

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