Detail publikačního výsledku

Submergence coefficient of full-width sharp-edged broad-crested rectangular weirs

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

Anglický název

Submergence coefficient of full-width sharp-edged broad-crested rectangular weirs

Druh

Článek WoS

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.

Anglický 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

Klíčová slova v angličtině

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.

Rok RIV

2020

Vydáno

01.10.2019

Nakladatel

VEDA, SLOVAK ACAD SCIENCES

Místo

BRATISLAVA

ISSN

1338-4333

Periodikum

Journal of Hydrology and Hydromechanics

Svazek

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="0042-790X",
  url="https://content.sciendo.com/view/journals/johh/67/4/article-p329.xml"
}

Dokumenty

[13384333 - Journal of Hydrology and Hydromechanics] Submergence coefficient of full-width sharp-edged broad-crested rectangular weirs