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Erschienen in: WASSERWIRTSCHAFT 13/2015

01.05.2015 | Hydropower

A Mathematical Model for the Swirling Flow Ingested by the Draft Tube of Francis Turbines

verfasst von: Prof. Dr.-Ing. Romeo Susan-Resiga, Dr.-Ing. Sebastian Muntean, Cosmin Ighişan

Erschienen in: WASSERWIRTSCHAFT | Ausgabe 13/2015

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Excerpt

We introduce and validate a mathematical model, derived from the turbomachinery throughflow theory, for computing the swirling flow exiting a Francis turbine runner operated within a range of discharge values. This swirling flow, further ingested by the draft tube, is used as inlet condition for numerically assessing the draft tube performance for variable discharge without actually computing the runner. The present methodology can be used when refurbishing the turbine runner, in order to insure that the new runner is a best match for the existing draft tube. …

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Literatur
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Metadaten
Titel
A Mathematical Model for the Swirling Flow Ingested by the Draft Tube of Francis Turbines
verfasst von
Prof. Dr.-Ing. Romeo Susan-Resiga
Dr.-Ing. Sebastian Muntean
Cosmin Ighişan
Publikationsdatum
01.05.2015
Verlag
Springer Fachmedien Wiesbaden
Erschienen in
WASSERWIRTSCHAFT / Ausgabe 13/2015
Print ISSN: 0043-0978
Elektronische ISSN: 2192-8762
DOI
https://doi.org/10.1007/s35147-015-0503-5

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