Experimental Study of Turbulent Fluctuations in Hydraulic Jumps

Wang, Hang and Chanson, Hubert (2015) Experimental Study of Turbulent Fluctuations in Hydraulic Jumps. Journal of Hydraulic Engineering, 141 7: 04015010-1-04015010-10. doi:10.1061/(ASCE)HY.1943-7900.0001010

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Author Wang, Hang
Chanson, Hubert
Title Experimental Study of Turbulent Fluctuations in Hydraulic Jumps
Journal name Journal of Hydraulic Engineering   Check publisher's open access policy
ISSN 0733-9429
Publication date 2015
Year available 2015
Sub-type Article (original research)
DOI 10.1061/(ASCE)HY.1943-7900.0001010
Open Access Status File (Author Post-print)
Volume 141
Issue 7
Start page 04015010-1
End page 04015010-10
Total pages 11
Place of publication Reston, VA United States
Publisher American Society of Civil Engineers
Collection year 2016
Language eng
Formatted abstract
In an open channel, the transformation from a supercritical flow into a subcritical flow is a rapidly varied flow with large turbulent fluctuations, intense air entrainment, and substantial energy dissipation called a hydraulic jump. New experiments were conducted to quantify its fluctuating characteristics in terms of free-surface and two-phase flow properties for a wide range of Froude numbers (3.8<F1<8.5) at relatively large Reynolds numbers (2.1×104<R<1.6×105). The time-averaged free-surface profile presented a self-similar profile. The longitudinal movements of the jump were observed, showing both fast and very slow fluctuations for all Froude numbers. The air–water flow measurements quantified the intense aeration of the roller. Overall the present findings demonstrated the strong interactions between the jump roller turbulence and free-surface fluctuations.

Keyword Hydraulic jumps
Turbulent fluctuations
Physical modelling
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2016 Collection
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 2 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 2 times in Scopus Article | Citations
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Created: Wed, 17 Jun 2015, 09:28:54 EST by Hubert Chanson on behalf of School of Civil Engineering