Experimental Approach to the Hydraulics of Vertical Slot Fishways
Publication: Journal of Hydraulic Engineering
Volume 130, Issue 1
Abstract
The performance of two particular designs of vertical slot fishways for two different slopes was studied in a wide range of discharges. Water depths were measured in almost the whole surface of pools. A linear relation between dimensionless discharge and depth of flow, and the same flow patterns for each design were found. With an acoustic Doppler velocimeter, three-dimensional velocities were measured at several levels in the entire pool to detect the structure of the flow and quantify velocity distribution. Two different regions in flow patterns were found: a direct flow region characterized by maximum velocities; and a recirculation region, defined by low velocities and horizontal eddies. For a given slope, the velocity at any point of the pool (particularly at the slot) may be considered independent of the discharge and constant with the depth. Some suggestions on kinetic turbulent energy are also made.
Get full access to this article
View all available purchase options and get full access to this article.
References
Beach, M. H. (1984). “Fish pass design. Criteria of the design and approval of fish passes and other structures to facilitate the passage of migratory fishes in rivers.” Fish. Research Technical Rep. 78, MAFF Direct, Fish. Res., Lowestoft.
Clay, C. H. (1995). Design of fishways and other fish facilities, Lewis, Boca Raton, Fla.
Kamula, R. (2001). “Flow over weirs with application to fish passage facilities.” Academic dissertation, Univ. of Oulu, Oulu, Finland.
Kraus, N. C., Lohrmann, A., and Cabrera, R.(1994). “New acoustic meter for measuring 3D laboratory flows.” J. Hydraul. Eng., 120(3), 406–412.
Larinier, M., Porcher, J. P., Travede, F., and Gosset, C. (1998). Passes à poissons. Expertise conception des ouvrages de franchissement, Conseil Supérieur De La Pe⁁che, Paris, France (in French).
Nikora, V. I., and Goring, D. G.(1998). “ADV measurements of turbulence: Can we improve their interpretation?” J. Hydraul. Eng., 124(6), 630–634.
Rajaratnam, N., Katopodis, C., and Solanki, S.(1992). “New designs for vertical slot fishways.” Can. J. Civ. Eng., 19(3), 402–414.
Rajaratnam, N., Van der Vinne, G., and Katopodis, C.(1986). “Hydraulics of vertical slot fishways.” J. Hydraul. Eng., 112(10), 909–927.
Rodi, W. (1980). Turbulence models and their application in hydraulics, IAHR Monograph, Delft, The Netherlands.
Wu, S., Rajaratnam, N., and Katopodis, C.(1999). “Structure of flow in vertical slot fishway.” J. Hydraul. Eng., 125(4), 351–360.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 130 • Issue 1 • January 2004
Pages: 10 - 23
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Mar 29, 2002
Accepted: May 14, 2003
Published online: Dec 15, 2003
Published in print: Jan 2004
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.