Hydrodynamic forces of a yawed square cylinder in oscillating flows

    Research output: Chapter in Book/Conference paperConference paper

    Abstract

    Copyright © 2016 by the International Society of Offshore and Polar Engineers.The effect of yaw angle (a) on hydrodynamic forces of a yawed square cylinder oscillating in still water is studied experimentally. The independent principle (IP) was examined by evaluating the hydrodynamic coefficients that derived from the measured in-line and lift forces using a 3-component force link at a Keulegan-Carpenter (KC) number range of 3~30 and a Stokes parameter (ß) range of 500~1600. Significant differences are observed in normalized drag and inertia coefficients for the KC ranges of 8~20 and 10~18, respectively, indicating the invalidity of the IP. The peak on the spectra of the lift force becomes pronounced as abecomes larger, which implies that the yaw angle has an intensified effect on the vortex shedding process around a square cylinder in oscillatory flow.
    Original languageEnglish
    Title of host publicationProceedings of the 12th ISOPE Pacific-Asia Offshore Mechanics Symposium
    EditorsJ.S. Chung
    PublisherInternational Society of Offshore and Polar Engineers
    Pages95-100
    Number of pages6
    ISBN (Print)9781880653982
    Publication statusPublished - 2016
    Event12th ISOPE Pacific-Asia Offshore Mechanics Symposium: PACOMS 2016 - Gold Coast, Australia
    Duration: 4 Oct 20167 Oct 2016

    Conference

    Conference12th ISOPE Pacific-Asia Offshore Mechanics Symposium
    CountryAustralia
    CityGold Coast
    Period4/10/167/10/16

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    Cite this

    Lou, X., Zhou, T., & Cheng, L. (2016). Hydrodynamic forces of a yawed square cylinder in oscillating flows. In J. S. Chung (Ed.), Proceedings of the 12th ISOPE Pacific-Asia Offshore Mechanics Symposium (pp. 95-100). International Society of Offshore and Polar Engineers.