論文

査読有り
2001年

閉鎖性水域の風波発生下での乱れ構造及びバーストの周期について

水工学論文集
  • 禰津 家久
  • ,
  • 牛島 省
  • ,
  • 井上 理恵

45
開始ページ
529
終了ページ
534
記述言語
日本語
掲載種別
DOI
10.2208/prohe.45.529
出版者・発行元
Japan Society of Civil Engineers

Downward-bursting phenomena in water beneath wind waves is important in the process of the momentum, heat and mass transfer across the air-water interface. The coherent structure is closely related to the wind-waves in specially DBBL (downward-bursting boundary layer, about 3-7 times depth of the significant wave height). The turbulent inten-sities and Reynolds stress (-uv) in closed wind water waves could be expressed by the parameters of wind-waves, the intensity of water depth fluctuation and the peak frequency.<BR>To estimate the bursting period, the u-v quadrant threshold technique is applied to the streamwise velocity signals in the water flows. The bursting period is in a good agreement with the behavior of time series of Reynolds stress (-uv). As a result, it became clear that the bursting period has a close connection with the peak frequency of wind-waves.

リンク情報
DOI
https://doi.org/10.2208/prohe.45.529
CiNii Articles
http://ci.nii.ac.jp/naid/130003841686
URL
https://jlc.jst.go.jp/DN/JALC/00370437291?from=CiNii
ID情報
  • DOI : 10.2208/prohe.45.529
  • ISSN : 0916-7374
  • CiNii Articles ID : 130003841686

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