Characteristics of energy dissipation in a turbulent cylinder wake

J. G. Chen, Y Zhou, R. A. Antonia, Tongming Zhou

    Research output: Chapter in Book/Conference paperConference paper

    Abstract

    This work aims to improve our understanding of the turbulent
    energy dissipation rate in the turbulent wake of a circular
    cylinder. Ten of the twelve components are simultaneously
    measured at nominally the same point across the wake with a
    vorticity probe which comprises 4 x-wires. A phase-averaged
    technique is applied to the energy dissipation rate estimation to
    examine the spatial topology of both the coherent (large-scale)
    and remaining (small-scale) components of the turbulent energy
    dissipation rate. It is found that the distribution of the energy
    dissipation occurs mostly within the spanwise vortex rollers,
    rather than in regions where turbulent mixing is important. This
    new information has been incorporated into Hussain and
    Hayakawa's [6] flow structure model in order to reflect the
    topological characteristics of the energy dissipation rate in the
    near/intermediate region of a plane wake.
    Original languageEnglish
    Title of host publicationProceedings of the 20th Australasian Fluid Mechanics Conference
    EditorsGreg Ivey, Nicole Jones, Tongming Zhou
    PublisherUniversity of Melbourne
    ISBN (Electronic)978-1-74052-377-6
    Publication statusPublished - 2016
    Event20th Australasian Fluid Mechanics Conference - University of Western Australia, Perth, Australia
    Duration: 5 Dec 20168 Dec 2016
    Conference number: 20
    http://www.afms.org.au/20AFMC/

    Conference

    Conference20th Australasian Fluid Mechanics Conference
    Abbreviated titleAFMC
    CountryAustralia
    CityPerth
    Period5/12/168/12/16
    Internet address

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