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Experience with the Application of Fully 3D Potential Flow Analysis to Runner Design

by N. D?sy, GE Canada, Canada,
H. Do, GE Canada, Canada,



Document Type: Proceeding Paper

Part of: Waterpower '89

Abstract:

Hydraulic turbines come in various shapes and types depending on their operating conditions. Their performance characteristics depend largely on the runner which is the most difficult component to design. A fully 3D potential flow program is used to analyze the flow through runner blades. This computer code has been validated, and is being continuously in fact, through extensive correlation studies between flow analysis and model test results from our hydraulic laboratory. Field tests are also used for the validation as well as statistical analysis to establish correlations and produce experience curves for Francis, Kaplan, and Propeller turbine types. This paper presents a brief description of the program and an overview of the achievements in the laboratory as well as in the field.

Subject Headings: Three-dimensional flow | Field tests | Turbines | Three-dimensional analysis | Potential flow | Laboratory tests | Hydraulic models

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