The model study of the center sluice, Libby Dam, was conducted to determine the causes of and to develop means for preventing the cavitation damage experienced in the sluices. The study was conducted in a 1:20- scale model of the center sluice which reproduced the "as-built" geometry of the bell-mouthed intake, emergency gate slot, regulating gate and gate well, and parabolic trajectory of the sluiceway. The model helped to define undesirable hydraulic conditions that have caused cavitation damage in the prototype structure. Through the use of the model, an aeration device was developed to ventilate the jet and prevent cavitation damage. The recommended aerator (type 7) provided a high degree of aeration without adversely altering flow conditions in the sluice. A certain roof modification was suggested to prevent unstable flow and cavitation damage in the sluice intake.
Center Sluice Investigation, Libby Dam, Kootenai River, Montana: Hydraulic Model Investigation
Technical Report ; H-76-21
1976
4985046
Report
Elektronische Ressource
Englisch
HENRY – Bundesanstalt für Wasserbau (BAW) | 1976
|Air Demand Tests, Libby Dam, Kootenai River, Montana
HENRY – Bundesanstalt für Wasserbau (BAW) | 1981
|Prototype Evaluation of Sluiceway Aeration System, Libby Dam, Kootenai River, Montana
HENRY – Bundesanstalt für Wasserbau (BAW) | 1984
|HENRY – Bundesanstalt für Wasserbau (BAW) | 1974
|Online Contents | 1996