Hydraulics, Air Entrainment and Energy Dissipation on Gabion Stepped Weir

Wuthrich, Davide and Chanson, Hubert (2014) Hydraulics, Air Entrainment and Energy Dissipation on Gabion Stepped Weir. Journal of Hydraulic Engineering, 140 9: 04014046.1-04014046.10. doi:10.1061/(ASCE)HY.1943-7900.0000919

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Author Wuthrich, Davide
Chanson, Hubert
Title Hydraulics, Air Entrainment and Energy Dissipation on Gabion Stepped Weir
Journal name Journal of Hydraulic Engineering   Check publisher's open access policy
ISSN 0733-9429
1943-7900
Publication date 2014
Year available 2014
Sub-type Article (original research)
DOI 10.1061/(ASCE)HY.1943-7900.0000919
Open Access Status File (Author Post-print)
Volume 140
Issue 9
Start page 04014046.1
End page 04014046.10
Total pages 10
Place of publication Reston, VA United States
Publisher American Society of Civil Engineers
Collection year 2015
Language eng
Formatted abstract
In the last decades the design of stepped spillways regained some interest because of their suitability with new construction methods including gabions. The hydraulic performances of gabion stepped weirs were investigated experimentally in terms of the flow patterns, air-water flow properties, and energy dissipation. A laboratory study was conducted in a 26.6° slope (1V:2H) and 0.10-m step height facility, with both smooth impervious and gabion steps. The visual observations highlighted the seepage flow through the gabions, inducing a modification of the cavity flow especially in the skimming flow regime. In skimming flows, higher velocities were measured at the downstream end of the gabion stepped chute, associated with smaller energy dissipation rates and lower friction factors, compared to the smooth impervious stepped chute data.
Keyword Gabion weirs
Stepped spillways
Hydraulic engineering
Energy Dissipation
Air entrainment
Physical modelling
Seepage motion
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes The deposit is the postprint manuscript inline with the Sherpa/Romeo policy for the journal. The full bibliographic details are: WUTHRICH, D, and CHANSON, H. (2014). "Hydraulics, Air Entrainment and Energy Dissipation on Gabion Stepped Weir." Journal of Hydraulic Engineering, ASCE, Vol. 140, No. 9, Paper 04014046, 10 pages (DOI: 10.1061/(ASCE)HY.1943-7900.0000919) (ISSN 0733-9429).

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2015 Collection
 
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Created: Sun, 17 Aug 2014, 12:45:49 EST by Hubert Chanson on behalf of School of Civil Engineering