FEM-Flow Analysis in Hydraulic Turbomachinery Runnersby P. Jermann, Sulzer Escher Wyss, Zurich, Switzerland,
H. Keck, Sulzer Escher Wyss, Zurich, Switzerland,
J. Pestalozzi, Sulzer Escher Wyss, Zurich, Switzerland,
Document Type: Proceeding Paper
Abstract: Finite element calculations of the flow through distributor and runner of hydraulic turbomachines are presented. The method is quasi-3D and inviscid, but the deviations from a potential flow connected with typical swirl distributions in turbomachines are taken into account. Examples of meridional and blade-to-blade calculations in a bulb turbine and a Francis turbine, including comparisons with experiments, show the versatility of the program and its usefulness for the practical runner design.
Subject Headings: Finite element method | Flow distribution | Hydraulics | Turbines | Potential flow | Comparative studies | Mathematics | Water flow
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