Passive Scalar and Velocity Fields in a Turbulent Cylinder Near Wake

J. G. Chen, H. L. Cao, Tongming Zhou, R. A. Antonia, Y. Zhou

    Research output: Chapter in Book/Conference paperConference paper

    Abstract

    This work aims to provide an exploration of the spectral analogy between the enstrophy and the scalar dissipation rate, as well as between the passive scalar and the velocity vector fluctuations, especially in the context of the highly organized aspects that exist in the near wake. Measurements were taken in the wake of a heated circular cylinder at x/d = 10-40, with a Reynolds number of 2540. The resutls indicate that there is a reasonable analogy between the spectra corresponding to enstrophy and passive scalar dissipation rate, the small departures being caused by coherent motions. The spectral analogy between the streamwise velocity fluctuation u and the passive scalar theta is better than that between the velocity fluctuation vector q and theta. This is also closely related to the highly organised lateral velocity fluctuation v in this flow.

    Original languageEnglish
    Title of host publicationFluid-Structure-Sound Interactions and Control
    Subtitle of host publicationProceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control
    EditorsY Zhou, AD Lucey, Y Liu, L Huang
    PublisherSpringer-Verlag London Ltd.
    Pages175-180
    Number of pages6
    ISBN (Print)978-3-662-48866-9
    DOIs
    Publication statusPublished - 2016
    Event3rd Symposium on Fluid-Structure-Sound Interactions and Control (FSSIC) - Perth, Australia
    Duration: 5 Jul 20159 Jul 2015

    Publication series

    NameLecture Notes in Mechanical Engineering
    PublisherSPRINGER-VERLAG BERLIN
    ISSN (Print)2195-4356

    Conference

    Conference3rd Symposium on Fluid-Structure-Sound Interactions and Control (FSSIC)
    CountryAustralia
    CityPerth
    Period5/07/159/07/15

    Cite this

    Chen, J. G., Cao, H. L., Zhou, T., Antonia, R. A., & Zhou, Y. (2016). Passive Scalar and Velocity Fields in a Turbulent Cylinder Near Wake. In Y. Zhou, AD. Lucey, Y. Liu, & L. Huang (Eds.), Fluid-Structure-Sound Interactions and Control: Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control (pp. 175-180). (Lecture Notes in Mechanical Engineering). Springer-Verlag London Ltd.. https://doi.org/10.1007/978-3-662-48868-3_28