Temporal decay of zero-mean-flow turbulence

Yuji Sugihara, Nobuhiro Matsunaga, Toshimitsu Komatsu

    Research output: Contribution to journalArticle

    Abstract

    How a zero-mean flow turbulence decays after a turbulence-producing source was removed has been investigated numerically by using the κ-ε turbulence model. It has been also found theoretically that characteristic quantities of the turbulence decay in proportion to powers of the time elapsed from the stoppage of the energy supply. A time series of turbulent energy has been obtained experimentally in a decaying turbulence originally generated by the grid oscillation. The theoretical solution for the decay of turbulent energy agrees well with the experimental results.

    Original languageEnglish
    Pages (from-to)215-218
    Number of pages4
    JournalDoboku Gakkai Rombun-Hokokushu/Proceedings of the Japan Society of Civil Engineers
    Issue number503 pt 2-29
    Publication statusPublished - Nov 1994

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    Turbulence
    Turbulence models
    Time series

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

    Cite this

    Temporal decay of zero-mean-flow turbulence. / Sugihara, Yuji; Matsunaga, Nobuhiro; Komatsu, Toshimitsu.

    In: Doboku Gakkai Rombun-Hokokushu/Proceedings of the Japan Society of Civil Engineers, No. 503 pt 2-29, 11.1994, p. 215-218.

    Research output: Contribution to journalArticle

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