INFLUENCE OF THE TRANSVERSE DIMENSION OF THE INLET SHAFT ON OVERFLOW OF BROAD-CRESTED WEIR
DOI:
https://doi.org/10.51704/cjce.2017.vol3.iss2.pp118-124Keywords:
Broad-crested weir, inlet shaft, water surface levelAbstract
In the water management practice are often used broad-crested weirs, which the inlet flume is not used, but is used the inlet shaft. In the case of the inlet shaft, the effect of the velocity head on the overflow capacity is not known, especially at different heights of the cross section of the shaft. Furthermore, there is no known shape of the water level over shaft and over crest of weir and its relative expression. This paper describes the experiment with a vertical inlet shaft, based of which the shape of the water level above the shaft and the crest of weir was determined.
Metrics
References
ČSN ISO 3846 (25 9332), 2012. Hydrometrie – Měření průtoku v otevřených korytech pomocí přelivů pravoúhlého průřezu se širokou korunou. Praha, ČR. ÚNMZ.
ČSN ISO 4374, Měření průtoku kapalin v otevřených korytech - Měřené přelivy se širokou korunou a zaoblenou vstupní hranou. Praha, ČR. ÚNMZ.
BEREZINSKIJ, A. R. Carrying capacity of the broad-crested weir. Moskva: VODGEO. Strojizdat, 1950. 186 p.
BOS, M. G., 1989. Discharge measurement structures. Third revised edition. Wageningen, The Netherlands: International Institute for Land Reclamation and Improvement/ILRI, ISBN: 90 70754 15 0.
HAGER, W. H. a SCHWALT, M., 1994. Broad-crested weir. Journal of Irrigation and Drainage Engineering, 120(1), 13-26.
HORTON, R. E., 1907. Weir experiments, coefficients, and formulas. Revision of paper no. 150. Washington, USA: Department of the Interior United States Geological Survey.
KNÉBLOVÁ, M., 2013. Analýza vlivu relativní výšky pravoúhlého přelivu se širokou korunou na součinitel průtoku. Brno. Diplomová práce. Vysoké učení technické v Brně, Fakulta stavební, Ústav vodních staveb.
SREETHARAN, P. M., 1988. Discharge characteristics of rectangular profiled weirs. Hydraulic Engineering. 1988, 969-978.
ZACHOVAL, Z., KNÉBLOVÁ, M., ROUŠAR, L., RUMANN, J. a ŠULC, J., 2014. Discharge coefficient of a rectangular sharp-edged broad crested weir. Journal of Hydrology and Hydromechanics, 62(2), 145-149. DOI: https://doi.org/10.2478/johh-2014-0014
ZACHOVAL, Z., MISTROVÁ, I., ROUŠAR, l., ŠULC, J., ZUBÍK, P., 2012. Zone of flow separation at the upstream edge of a rectangular broad-crested weir. Journal Hydrology and Hydromechanics, 60(4), 288–298. DOI: https://doi.org/10.2478/v10098-012-0025-0
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Jakub Major
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Public License
Articles published in Czech Journal of Civil Engineering are licensed using Creative Commons License. Except where otherwise noted, individual articles in the Czech Journal of Civil Engineering are licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0).
