Publication result detail

The influence of roughness on the discharge coefficient of a broad-crested weir

PAŘÍLKOVÁ, J.; ŘÍHA, J.; ZACHOVAL, Z.

Original Title

The influence of roughness on the discharge coefficient of a broad-crested weir

English Title

The influence of roughness on the discharge coefficient of a broad-crested weir

Type

WoS Article

Original Abstract

The use of environmentally-friendly materials in hydraulic engineering (e.g. the stone lining of weirs at levees) calls for the more accurate estimation of the discharge coefficient for broad-crested weirs with a rough crest surface. However, in the available literature sources the discharge coefficient of broad-crested weirs is usually expressed for a smooth crest. The authors of this paper have summarized the theoretical knowledge related to the effect of weir crest surface roughness on the discharge coefficient. The method of determination of the head-discharge relation for broad-crested weirs with a rough crest surface is proposed based on known discharge coefficient values for smooth surfaces and on the roughness parameters of the weir. For selected scenarios the theoretical results were compared with experimental research carried out at the Laboratory of Water Management Research, Faculty of Civil Engineering (FCE), Brno University of Technology (BUT).

English abstract

The use of environmentally-friendly materials in hydraulic engineering (e.g. the stone lining of weirs at levees) calls for the more accurate estimation of the discharge coefficient for broad-crested weirs with a rough crest surface. However, in the available literature sources the discharge coefficient of broad-crested weirs is usually expressed for a smooth crest. The authors of this paper have summarized the theoretical knowledge related to the effect of weir crest surface roughness on the discharge coefficient. The method of determination of the head-discharge relation for broad-crested weirs with a rough crest surface is proposed based on known discharge coefficient values for smooth surfaces and on the roughness parameters of the weir. For selected scenarios the theoretical results were compared with experimental research carried out at the Laboratory of Water Management Research, Faculty of Civil Engineering (FCE), Brno University of Technology (BUT).

Keywords

Levee, Broad Crested Weir, Discharge Coefficient, Roughness

Key words in English

Levee, Broad Crested Weir, Discharge Coefficient, Roughness

Authors

PAŘÍLKOVÁ, J.; ŘÍHA, J.; ZACHOVAL, Z.

RIV year

2013

Released

01.06.2012

Publisher

Institute of Hydrology SAS

Location

Bratislava

ISBN

0042-790X

Periodical

Journal of Hydrology and Hydromechanics

Volume

60

Number

2

State

Slovak Republic

Pages from

101

Pages to

114

Pages count

14

URL

https://sciendo.com/article/10.2478/v10098-012-0009-0

Full text in the Digital Library

http://hdl.handle.net/11012/200901

BibTex

@article{BUT92909,
  author="Jana {Pařílková} and Jaromír {Říha} and Zbyněk {Zachoval}",
  title="The influence of roughness on the discharge coefficient of a broad-crested weir",
  journal="Journal of Hydrology and Hydromechanics",
  year="2012",
  volume="60",
  number="2",
  pages="101--114",
  doi="10.2478/v10098-012-0009-0",
  issn="0042-790X",
  url="https://sciendo.com/article/10.2478/v10098-012-0009-0"
}

Documents

10.2478_v10098-012-0009-0