Summary
An overview is given of the recent developments in the field of research about the dynamic behaviour of hydraulic machines, both as concerns their reaction to external disturbances (passive behaviour) and their role as a source of excitation for the rest of the installation (active behaviour). The interest of such investigations for manufacturers and users of hydraulic machines is outlined. The case of the draft tube surge caused by the interaction with the elbow of the cavitated vortex rope at the outlet of a Francis turbine operating at partial load is treated in some detail. Hints are offered as to the likely future trends of research about these topics.
Resume
On esquisse l’histoire des développements récents de la recherche sur le comportement dynamique des machines hydrauliques, en entendant par là soit leur réaction aux perturbations engendrées ailleurs dans l’installation (comportement passif), soit leur rôle en tant que source d’excitation pour le reste de l’installation (comportement actif). On souligne l’intérêt de telles recherches pour les applications industrielles. Le cas des oscillations dans l’aspirateur causées par l’interaction avec le coude de la torche à la sortie d’une turbine Francis fonctionnant sous charge partielle est traité en particulier. En conclusion on offre quelques considérations sur les tendances probables de la recherche future dans ce domaine.
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Bibliographic List
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© 1996 Springer Science+Business Media Dordrecht
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Fanelli, M. (1996). Some Present Trends in Hydraulic Machinery Research. In: Cabrera, E., Espert, V., Martínez, F. (eds) Hydraulic Machinery and Cavitation. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-9385-9_3
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DOI: https://doi.org/10.1007/978-94-010-9385-9_3
Publisher Name: Springer, Dordrecht
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