Scale Model Study Benefits Hydropower Project

by Heinz G. Stefan, Univ of Minnesota, Minneapolis, MN, USA,
Karen L. C. Lindblom, Univ of Minnesota, Minneapolis, MN, USA,
Richard L. Voigt, Jr., Univ of Minnesota, Minneapolis, MN, USA,
Bruce Ainsworth, Univ of Minnesota, Minneapolis, MN, USA,
Patrick Colgan, Univ of Minnesota, Minneapolis, MN, USA,

Document Type: Proceeding Paper

Part of: Water Forum '86: World Water Issues in Evolution

Abstract: The Jim Falls Project on the Chippewa River in Central Wisconsin deals with the replacement of an aged 11 MW run-of-river hydropower plant by a 48 MW peaking plant. A hydraulic model built to a scale of 1:60 at the St. Anthony Falls Hydraulic Laboratory, University of Minnesota, was used extensively to test and develop suitable hydraulic design geometries for several elements of the project. Numerous experiments were conducted on the configuration of the headrace and the diffuser at the end of the tailrace. The addition of a stilling basin and its non-symmetrical geometry were accepted on the basis of model experiments. The flow around the piers of a proposed bridge downstream from the power station was studied in the model. Additional studies and study results are discussed.

Subject Headings: Power plants | Model analysis | Hydro power | Hydraulic models | Hydraulic design | Hydrologic models | Scale models | Model tests | Rivers and streams | Geometrics | Wisconsin | North America | United States

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