Hahn, F. J. J., Maly, A., Semlitsch, B., & Bauer, C. (2022). Numerical investigation of the secondary flow pattern in a Pelton turbine jet. In Proceedings of the 3rd IAHR Young Professionals Congress (pp. 121–122). International Association for Hydro-Environment Engineering and Research. https://doi.org/10.34726/3545
The quality of the free-surface water jet influences Pelton turbine efficiency. Secondary flows resulting from the interior parts of the injector can deform the jet shape. By numerical flow simulations, this work identifies that the secondary flow pattern in a Pelton turbine jet resembles a quadrupole potential flow. This pattern is generated by the wake formation caused by the torpedo ribs. Further, it is demonstrated how streamlining the interior parts reduces the amount of secondary flow in the jet.
en
Research facilities:
Vienna Scientific Cluster
-
Project title:
Untersuchung des Strömungs- und Schwingungsverhaltens in einer Mehrfach-Abzweigeleitung mit axialer Wasserzuführung: FO999888084 (FFG - Österr. Forschungsförderungs- gesellschaft mbH; gbd Hydro ZT GmbH)
CC BY-NC-SA 4.0
