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ZACHOVAL, Z. MAJOR, J. ROUŠAR, L. RUMANN, J. ŠULC, J. JANDORA, J.
Originální název
Submergence coefficient of full-width sharp-edged broad-crested rectangular weirs
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Full-width sharp-edged broad-crested rectangular weirs in the range 0.1 < h/L <= 0.3 situated in rectangular channels are frequently used in submerged flow conditions. To determine the discharge for the submerged flow, submergence coefficient and modular limit shall be known. This article deals with their determination upon a theoretic derivation and experimental research. The equation for modular limit has been determined from energy balance with simplifications. To validate it, extensive experimental research was carried out. However, the derived equation is too complicated for practical use which is why it was approximated by a simple equation applicable for the limited range. The equation for submergence coefficient was derived by modifying Villemonte's application of the principle of super-position and its coefficients were determined using the data from experimental research of many authors. The new system of equations computes the discharge more accurately than other authors' equations, with the error of approximately +/- 10% in full range of the measured data.
Klíčová slova
Modular limit; Relative weir height; Full-width sharp-edged broad-crested weir; Submergence coefficient
Autoři
ZACHOVAL, Z.; MAJOR, J.; ROUŠAR, L.; RUMANN, J.; ŠULC, J.; JANDORA, J.
Vydáno
1. 10. 2019
Nakladatel
VEDA, SLOVAK ACAD SCIENCES
Místo
BRATISLAVA
ISSN
1338-4333
Periodikum
Journal of Hydrology and Hydromechanics
Ročník
67
Číslo
4
Stát
Slovenská republika
Strany od
329
Strany do
338
Strany počet
10
URL
https://content.sciendo.com/view/journals/johh/67/4/article-p329.xml
Plný text v Digitální knihovně
http://hdl.handle.net/11012/200898
BibTex
@article{BUT159600, author="Zbyněk {Zachoval} and Jakub {Major} and Ladislav {Roušar} and Ján {Rumann} and Jan {Šulc} and Jan {Jandora}", title="Submergence coefficient of full-width sharp-edged broad-crested rectangular weirs", journal="Journal of Hydrology and Hydromechanics", year="2019", volume="67", number="4", pages="329--338", doi="10.2478/johh-2019-0022", issn="1338-4333", url="https://content.sciendo.com/view/journals/johh/67/4/article-p329.xml" }