Reference : Numerical investigation of USBR type III stilling basin performance downstream of smo...
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Civil engineering
http://hdl.handle.net/2268/213139
Numerical investigation of USBR type III stilling basin performance downstream of smooth and stepped spillways
English
Valero Huerta, Daniel mailto [Université de Liège - ULiège > > > Form. doct. sc. ingé. & techn. (archi., gén. civ. - paysage)]
Bung, Daniel B. mailto [FH Aachen University of Applied Sciences > Hydraulic Engineering Section (HES) > > >]
Crookston, Brian mailto [Schnabel Engineering, Inc. > > > >]
Matos, Jorge mailto [Instituto Superior Técnico, Universidade de Lisboa > Department of Civil Engineering, Architecture and Georesources > > >]
28-Jun-2016
Proceedings of the 6th International Symposium on Hydraulic Structures
Utah State University
652-663
Yes
No
International
978-1-884575-75-4
6th International Symposium on Hydraulic Structures
from 27-6-2016 to 30-6-2016
Portland
USA
[en] Stepped chute ; RANS ; hydraulic jump energy dissipators ; CFD ; velocity decay ; VOF
[en] Recent systematic studies on air-water flows have included stepped spillways. However, to date little has been investigated about how the hydraulic conditions on the stepped spillway may affect the design of traditional energy dissipation structures. In this paper, both smooth chute and stepped chute configurations terminating with USBR type III stilling basin are tested by means of numerical modelling, allowing qualitative comparison. Unsteady RANS equations have been employed altogether with VOF and RNG k-ε for free surface tracking and turbulence modeling, respectively. Eight different Froude numbers (F) ranging from 3.1 to 9.5 have been analyzed for a basin designed for F = 8, following recent studies conducted in a physical model by USBR. The basin flow structure is discussed for both smooth chute and stepped chute cases. Additionally, the modelled basin has been tested for design and adverse hydraulic conditions, obtaining a detailed insight of the role of each basin element and their adapting roles when insufficient tail water conditions exist.
Urban and Environmental Engineering
Researchers ; Professionals
http://hdl.handle.net/2268/213139
10.15142/T340628160853
http://digitalcommons.usu.edu/ishs/2016/Session1/5/

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