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Erschienen in:
1996 | OriginalPaper | Buchkapitel
Flow Analysis for the Intake of Low-Head Hydro Power Plants
verfasst von : A. Ruprecht, M. Maihöfer, E. Göde
Erschienen in: Hydraulic Machinery and Cavitation
Verlag: Springer Netherlands
Enthalten in: Professional Book Archive
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In low-head hydro power plants often severe flow problems arise at the inlet region. Since model tests are mostly too expensive, especially for small power plants, numerical flow analysis is introduced. In this paper the numerical analysis of the flow behavior is shown for the intake region of two small power plants. For the first power plant the problem was that due to a disturbed flow in the trash rack, causing severe head losses, the power output was too low. By suggesting a relative simple modification of the geometry the problem could be cured. In the second case investigated there were oscillation problems initiated by a vortex shedding at the separation pier. Again, by changing the shape of the pier based on the results of the flow analysis, this problem could be avoided.