Energy dissipation down a stepped spillway with nonuniform step heights

Felder, Stefan and Chanson, Hubert (2011) Energy dissipation down a stepped spillway with nonuniform step heights. Journal of Hydraulic Engineering, 137 11: 1543-1548. doi:10.1061/(ASCE)HY.1943-7900.0000455

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Author Felder, Stefan
Chanson, Hubert
Title Energy dissipation down a stepped spillway with nonuniform step heights
Journal name Journal of Hydraulic Engineering   Check publisher's open access policy
ISSN 0733-9429
Publication date 2011-11
Sub-type Article (original research)
DOI 10.1061/(ASCE)HY.1943-7900.0000455
Open Access Status File (Author Post-print)
Volume 137
Issue 11
Start page 1543
End page 1548
Total pages 6
Place of publication Reston, VA, United States
Publisher American Society of Civil Engineers
Collection year 2012
Language eng
Formatted abstract
Although most stepped spillway–design guidelines were developed for uniform step heights, a nonuniform stepped design might be a practical alternative in some cases. A physical study was conducted in a moderate slope-stepped chute (1V:2H) and five stepped configurations were tested for 0.7 < dc / h < 1.9. Detailed air-water flow measurements were performed for each configuration and the results were compared in terms of flow patterns, energy dissipation, and flow resistance. The basic findings showed minor differences between all configurations and indicated that the rate of energy dissipation was about the same for uniform and nonuniform stepped configurations. But the observations suggested that the nonuniform stepped configurations might induce some flow instabilities for smaller flow rates.
Keyword Stepped spillways
Nonuniform step heights
Energy dissipation
Air entrainment
Physical measurements
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online 12 May 2011

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2012 Collection
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 8 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 14 times in Scopus Article | Citations
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Created: Wed, 11 Jan 2012, 09:00:58 EST by Hubert Chanson on behalf of School of Civil Engineering