Discharge coefficient of a rectangular sharp-edged broad-crested weir

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Title:Discharge coefficient of a rectangular sharp-edged broad-crested weir
Creators:
Zachoval, Zbyněk; sulc dot j at fce dot vutbr dot cz; Laboratory of Water Management Research, Department of Water Structures, Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 602 00, Brno, Czech Republic.
Knéblová, Michaela; kneblova dot michaela at gmail dot com; Department of Water management Conceptions and Information, Odra River Board, Varenská 49, 701 26, Ostrava, Czech Republic.
Roušar, Ladislav; rousar dot l at fce dot vutbr dot cz; Department of Water Structures, Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 602 00, Brno, Czech Republic.
Rumann, Ján; jan dot rumann at stuba dot sk; Department of Hydraulic Engineering, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Radlinského 11, 813 68, Bratislava, Slovak Republic
Šulc, Jan; sulc dot j at fce dot vutbr dot cz; Laboratory of Water Management Research, Department of Water Structures, Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 602 00, Brno, Czech Republic.
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 62, 2, pp. 145-149
Uncontrolled Keywords:broad-crested weir, discharge coefficient, relative height of weir

Abstract

his paper is concerned with the determination of the relationship for the calculation of the discharge coefficient at free overflow over a rectangular sharp-edged broad-crested weir without lateral contraction. The determination was made on the basis of new measurement in a range of the relative thickness of the weir from 0.12 to 0.30 and newly in a large range of relative height of the weir extremely from 0.24 to 6.8 which greatly expands the application possibilities of low weirs. In addition, the effects of friction and surface tension on the value of the discharge coefficient were evaluated as well as the effect of the relative thickness of the weir. The new equation for discharge coefficient, expressed using the relative height of the weir, was subjected to verification made by an independent laboratory which confirmed its accuracy.

Official URL: http://147.213.145.2/vc/vc1.asp

Title:Discharge coefficient of a rectangular sharp-edged broad-crested weir
Translated title:Discharge coefficient of a rectangular sharp-edged broad-crested weir
Creators:
Zachoval, Zbyněk; sulc dot j at fce dot vutbr dot cz; Laboratory of Water Management Research, Department of Water Structures, Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 602 00, Brno, Czech Republic.
Knéblová, Michaela; kneblova dot michaela at gmail dot com; Department of Water management Conceptions and Information, Odra River Board, Varenská 49, 701 26, Ostrava, Czech Republic.
Roušar, Ladislav; rousar dot l at fce dot vutbr dot cz; Department of Water Structures, Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 602 00, Brno, Czech Republic.
Rumann, Ján; jan dot rumann at stuba dot sk; Department of Hydraulic Engineering, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Radlinského 11, 813 68, Bratislava, Slovak Republic
Šulc, Jan; sulc dot j at fce dot vutbr dot cz; Laboratory of Water Management Research, Department of Water Structures, Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 602 00, Brno, Czech Republic.
Uncontrolled Keywords:broad-crested weir, discharge coefficient, relative height of weir
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Mathematics, Physics and Earth Sciences > Institute of Hydrodynamics > Journal of Hydrology and Hydromechanics
Journal or Publication Title:Journal of Hydrology and Hydromechanics
Volume:62
Number:2
Page Range:pp. 145-149
ISSN:0042-790X
Publisher:Institute of Hydrology of the Slovak Academy of Sciences and the Institute of Hydrodynamics of the Academy of Sciences of the Czech Republic
Related URLs:
URLURL Type
http://avi.lib.cas.cz/node/55Publisher
ID Code:8197
Item Type:Article
Deposited On:05 Jun 2014 18:31
Last Modified:05 Jun 2014 16:31

Citation

Zachoval, Zbyněk; Knéblová, Michaela; Roušar, Ladislav; Rumann, Ján; Šulc, Jan (2014) Discharge coefficient of a rectangular sharp-edged broad-crested weir. Journal of Hydrology and Hydromechanics, 62 (2). pp. 145-149. ISSN 0042-790X

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