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.


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    Title :

    Center Sluice Investigation, Libby Dam, Kootenai River, Montana: Hydraulic Model Investigation



    Published in:

    Publication date :

    1976


    Size :

    4985046


    Type of media :

    Report


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :


    Sluice Pressures, Gate Vibrations and Stilling Basin Wall Pressures, Libby Dam, Kootenai River, Montana

    Hart, Ellis Dale / Tool, Allen R. | HENRY – Federal Waterways Engineering and Research Institute (BAW) | 1976

    Free access

    Air Demand Tests, Libby Dam, Kootenai River, Montana

    Hart, Ellis Dale | HENRY – Federal Waterways Engineering and Research Institute (BAW) | 1981

    Free access

    Prototype Evaluation of Sluiceway Aeration System, Libby Dam, Kootenai River, Montana

    McGee, Richard G. | HENRY – Federal Waterways Engineering and Research Institute (BAW) | 1984

    Free access

    Potential Landslide-Generated Water Waves, Libby Dam and Lake Koocanusa, Montana : Hydraulic Model Investigation

    Davidson, D. Donald / Whalin, Robert Warren | HENRY – Federal Waterways Engineering and Research Institute (BAW) | 1974

    Free access

    Libby Sold

    Online Contents | 1996