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Article summary:

Abstract Kamula R, Barthel J:
"Effects of modifications on the hydraulics of Denil fishways",
Boreal Environmental Research 5 (1) : 67–79 (Mar 2000)


Keywords    
Abstract   From the biological point of view, fishways are structures that enable fish to continue their migration past obstructions. In terms of hydraulics, fishways are energy dissipating structures. One of the most effective fishways in energy dissipation is a Denil fishway. This paper presents the most important results of the studies on Denil fishways carried out at the Hydraulics and Water Resources Engineering Laboratory at the University of Oulu. The studies were focused on Denil fishways with wide relative baffle width (B/b = 2). Dimensionless discharges for Denil fishways with B/b = 2 are higher for the same water depth than for the standard Denil reflecting higher water velocities in the cross section. The dimensionless discharge curves for the standard Denil and for designs with different baffle angles are quite close to each other. The experiments show, however, clear trends in using different baffle angles to the bed.
Full text   Full Text in PDF (139 KB)
Source link   http://www.borenv.net/BER/pdfs/ber5-067s.pdf
Included Refrences   7 References (List...)
Cited by other Articles   0 Citations (List...)

Authors:

 2 records found.
Name Affiliation Home page e-mail Total pubs 
Barthel J   1
Kamula R   1

Article is cited by:

 No records found.

References included in article:

 7 records found.
Order of appearence Full citation SRCosmos Link 
1Committee-on-Fish-Passes 1942. Report of the Committee on Fish-Passes, the Institution Research Committee, the Institution of Civil Engineers, William Clowes and Sons, Limited, London, England. 59 pp. 
2Katopodis C, Rajaratnam NA,
1983. Review and laboratory study of the hydraulics of Denil fishways. Canadian Technical Report of Fisheries and Aquatic Science 1145. Fisheries and Oceans, Winnipeg, Canada. viii+181 pp.
 
3Katopodis C, Rajaratnam N,
1984. Similarity of Scale Models of Denil Fishways. In: Kobus H. (ed.), IAHR Symposium on Scale Effects in Modelling Hydraulic Structures, September 3–6, 1984. Technische Akademie
 
4Essling W,
Germany. pp. 2.8-1–2.8-6.
 
5Katopodis C, Rajaratnam N, Wu S, Tovell DGM,
1997. Denil fishways of varying geometry. J. Hydraulic Eng., ASCE 123(7): 624–631.
 
6Rajaratnam N, Katopodis C,
1984. Hydraulics of Denil fishways. J. Hydraulic Eng., ASCE 110 (9): 1219–1233.
 
7Rajaratnam N, Katopodis C, Flint-Petersen L,
1987. Hydraulics of two-level Denil fishways. J. Hydraulic Eng., ASCE 113 (5): 670–674.