On the Periodic Motion of a Circular-Cylinder through a Linearly Stratified Fluid

Peter A. Davies, Don L. Boyer, Harindra J.S. Fernando, Xiuzhang Zhang

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    The results of a series of experiments on the periodic motion of a horizontal circular cylinder through a linearly stratified fluid are described. For cases in which the motion is composed of a uniform horizontal translation and a superimposed sinusoidal variation in horizontal velocity, a number of different flow types are identified, and regime diagrams delineating the boundaries between the flow types are presented. Conditions for forward overshooting of wake fluid are discussed, and suitable scaling criteria are derived for the occurrence of the overshooting phenomenon. Comparisons are made between the unsteady flow data and those pertaining to steady flow counterparts having the same instantaneous parameter values, and the conditions for the generation of flow phenomena associated solely with the periodic nature of the motion are discussed. Quantitative data are presented on the dependence of typical wake region dimensions on the controlling dimensionless parameters.

    Original languageEnglish
    Pages (from-to)353-386
    Number of pages34
    JournalPhilosophical Transactions of the Royal Society A - Mathematical Physical and Engineering Sciences
    Volume346
    Issue number1680
    DOIs
    Publication statusPublished - 15 Feb 1994

    Keywords

    • FORCES
    • OSCILLATORY FLOW
    • INTERNAL SOLITARY WAVES
    • DRAG
    • WAKE
    • UNIFORM-FLOW

    Cite this

    @article{4344c54c13f247c0b28a112834fabac1,
    title = "On the Periodic Motion of a Circular-Cylinder through a Linearly Stratified Fluid",
    abstract = "The results of a series of experiments on the periodic motion of a horizontal circular cylinder through a linearly stratified fluid are described. For cases in which the motion is composed of a uniform horizontal translation and a superimposed sinusoidal variation in horizontal velocity, a number of different flow types are identified, and regime diagrams delineating the boundaries between the flow types are presented. Conditions for forward overshooting of wake fluid are discussed, and suitable scaling criteria are derived for the occurrence of the overshooting phenomenon. Comparisons are made between the unsteady flow data and those pertaining to steady flow counterparts having the same instantaneous parameter values, and the conditions for the generation of flow phenomena associated solely with the periodic nature of the motion are discussed. Quantitative data are presented on the dependence of typical wake region dimensions on the controlling dimensionless parameters.",
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    author = "Davies, {Peter A.} and Boyer, {Don L.} and Fernando, {Harindra J.S.} and Xiuzhang Zhang",
    year = "1994",
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    language = "English",
    volume = "346",
    pages = "353--386",
    journal = "Philosophical Transactions of the Royal Society A - Mathematical Physical and Engineering Sciences",
    issn = "1364-503X",
    publisher = "The Royal Society",
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    On the Periodic Motion of a Circular-Cylinder through a Linearly Stratified Fluid. / Davies, Peter A.; Boyer, Don L.; Fernando, Harindra J.S.; Zhang, Xiuzhang .

    In: Philosophical Transactions of the Royal Society A - Mathematical Physical and Engineering Sciences, Vol. 346, No. 1680, 15.02.1994, p. 353-386.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - On the Periodic Motion of a Circular-Cylinder through a Linearly Stratified Fluid

    AU - Davies, Peter A.

    AU - Boyer, Don L.

    AU - Fernando, Harindra J.S.

    AU - Zhang, Xiuzhang

    PY - 1994/2/15

    Y1 - 1994/2/15

    N2 - The results of a series of experiments on the periodic motion of a horizontal circular cylinder through a linearly stratified fluid are described. For cases in which the motion is composed of a uniform horizontal translation and a superimposed sinusoidal variation in horizontal velocity, a number of different flow types are identified, and regime diagrams delineating the boundaries between the flow types are presented. Conditions for forward overshooting of wake fluid are discussed, and suitable scaling criteria are derived for the occurrence of the overshooting phenomenon. Comparisons are made between the unsteady flow data and those pertaining to steady flow counterparts having the same instantaneous parameter values, and the conditions for the generation of flow phenomena associated solely with the periodic nature of the motion are discussed. Quantitative data are presented on the dependence of typical wake region dimensions on the controlling dimensionless parameters.

    AB - The results of a series of experiments on the periodic motion of a horizontal circular cylinder through a linearly stratified fluid are described. For cases in which the motion is composed of a uniform horizontal translation and a superimposed sinusoidal variation in horizontal velocity, a number of different flow types are identified, and regime diagrams delineating the boundaries between the flow types are presented. Conditions for forward overshooting of wake fluid are discussed, and suitable scaling criteria are derived for the occurrence of the overshooting phenomenon. Comparisons are made between the unsteady flow data and those pertaining to steady flow counterparts having the same instantaneous parameter values, and the conditions for the generation of flow phenomena associated solely with the periodic nature of the motion are discussed. Quantitative data are presented on the dependence of typical wake region dimensions on the controlling dimensionless parameters.

    KW - FORCES

    KW - OSCILLATORY FLOW

    KW - INTERNAL SOLITARY WAVES

    KW - DRAG

    KW - WAKE

    KW - UNIFORM-FLOW

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    M3 - Article

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    ER -