Hydraulic features of helycoidal flows in a vortex drop shaft

Crispino, Gaetano (Università della Campania "Luigi Vanvitelli", Aversa, Italy) ; Pfister, Michael (School of Engineering and Architecture (HEIA-FR), HES-SO // University of Applied Sciences Western Switzerland) ; Gisonni, Corrado (Università della Campania "Luigi Vanvitelli", Aversa, Italy)

Vortex drop shafts (VDSs) are special drop structures typically adopted for elevation differences larger than about 5 m (Gisonni and Hager 2012). In few cases (Volkart 1984; Bruschin and Mouchet 1985) they were utilized also to combine various sewer collectors. This uncommon concept was adopted to realize the new VDS operating in Cossonay, Switzerland. A physical model was opportunely built and tested to analyze the main hydraulic features of the entire structure. The present study provides the preliminary results focusing on the flow falling along the vertical shaft and entering the outlet structure, composed of a dissipation chamber and a tailwater tunnel.


Keywords:
Conference Type:
published full paper
Faculty:
Ingénierie et Architecture
School:
HEIA-FR
Institute:
iTEC - Institut des technologies de l'environnement construit
Publisher:
Prague, Czech Republic, 10-15 September 2017
Date:
2017-09
Prague, Czech Republic
10-15 September 2017
Pagination:
pp. 250-254
Published in:
Proceedings of 14th IWA/IAHR International Conference on Urban Drainage, ICUD 2017, 10-15 September 2017, Prague, Czech Republic
Appears in Collection:

Note: The status of this file is: restricted


 Record created 2021-05-28, last modified 2021-05-28

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