Spiral flow and pressure fluctuations in high shaft spillways

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00312304" target="_blank" >RIV/68407700:21110/17:00312304 - isvavai.cz</a>

Result on the web

<a href="http://www.barajguvenligi.org/publication/518/spiral-flow-and-pressure-fluctuations-in-high-shaft-spillways" target="_blank" >http://www.barajguvenligi.org/publication/518/spiral-flow-and-pressure-fluctuations-in-high-shaft-spillways</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Spiral flow and pressure fluctuations in high shaft spillways

Original language description

The paper is focused on improvement of hydraulic conditions in high shaft spillways due to spiral flow enforcement. It presents results from 1:20 scale physical model of complete structure of high circular shaft spillway equipped with different arrangements of pro-vortex structures at the circular intake section (shape, numbers). The effect of spiral flow in the shaft is commented from the pressure fluctuations, overall capacity and stability of the flow conditions point of view. Pressure fluctuations were measured in the shaft and along the outlet tunnel with high frequency probes. The influence of the shape of the bend between the shaft and the outlet tunnel together with flow regime in the outlet tunnel on the pressure fluctuations is evaluated. Comparison with axial flow without pro-vortex vanes is also provided in the paper.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20102 - Construction engineering, Municipal and structural engineering

Project

<a href="/en/project/VG20102014056" target="_blank" >VG20102014056: Reliability Improvement of Control Structures Installed on Hydraulic Structures for Sustaining Crisis Situation Caused by Natural Disasters and Accidental Operation</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings 85th ICOLD Annual Meeting International Symposium

ISBN

978-80-906662-1-4

ISSN

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e-ISSN

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Number of pages

9

Pages from-to

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Publisher name

GUARANT International spol. s r.o.

Place of publication

Praha

Event location

Praha

Event date

Jul 5, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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