Integral turbulent scales in unsteady rapidly varied open channel flows
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- 作者：Xinqian Leng ; Hubert Chanson ; h.chanson@uq.edu.au" class="auth_mail" title="E-mail the corresponding author
- 关键词：Integral turbulent time scales ; Integral turbulent length scales ; Unsteady open channel flows ; Bores ; Positive surges ; Physical modelling
- 刊名：Experimental Thermal and Fluid Science
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：81
- 期：Complete
- 页码：382-395
- 全文大小：2554 K
文摘
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Velocity profiling measurements in unsteady surges and bores at 100 Hz.
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Velocity profile within inner region followed the log law before, during and after the surge.
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Integral turbulent time and length scales Lz,z/Lz,x ∼ 1.1–7.3 and Tz,z/Tz,x ∼ 1.1–14.4.
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Vortical structures with longer dimensions in the vertical direction after surge.