Field Observations of Cavitation Erosion in Hydraulic Turbines

by James Sinclair, Acres Int, Buffalo, NY, USA,
Roger E. A. Arndt, Acres Int, Buffalo, NY, USA,

Document Type: Proceeding Paper

Part of: Water Power '87


Field surveys of the operational and design characteristics of 602 hydroturbines installed since 1950 and having a capacity in excess of 20 MW or a discharge diameter greater than 3 meters were studied. This data base includes 67% of the total U. S. capacity (40,000 MW). A nondimensional erosion rate parameter was developed to make meaningful comparison of cavitation erosion rate for turbines of similar size and power.

Subject Headings: Cavitation | Erosion | Hydraulics | Turbines | Field tests | Geomatic surveys | Comparative studies | Corrosion

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