Flow characteristics at trapezoidal broad-crested side weir

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Title:Flow characteristics at trapezoidal broad-crested side weir
Creators:
Říha, Jaromír; riha dot j at fce dot vutbr dot cz; Brno University of Technology, Faculty of Civil Engineering, Institute of Water Structures, Veveří 331/95, 602 00 Brno, Czech Republic.
Zachoval, Zbyněk; Brno University of Technology, Faculty of Civil Engineering, Institute of Water Structures, Veveří 331/95, 602 00 Brno, Czech Republic.
Journal or Publication Title:
Journal of Hydrology and Hydromechanics, 63, 2, pp. 164-171
Uncontrolled Keywords:broad-crested side weir, experimental research, flow characteristics, hydraulics

Abstract

Broad-crested side weirs have been the subject of numerous hydraulic studies; however, the flow field at the weir crest and in front of the weir in the approach channel still has not been fully described. Also, the discharge coefficient of broad–crested side weirs, whether slightly inclined towards the stream or lateral, still has yet to be clearly determined. Experimental research was carried out to describe the flow characteristics at low Froude numbers in the approach flow channel for various combinations of in- and overflow discharges. Three side weir types with different oblique angles were studied. Their flow characteristics and discharge coefficients were analyzed and assessed based on the results obtained from extensive measurements performed on a hydraulic model. The empirical relation between the angle of side weir obliqueness, Froude numbers in the up- and downstream channels, and the coefficient of obliqueness was derived.

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

Title:Flow characteristics at trapezoidal broad-crested side weir
Translated title:Flow characteristics at trapezoidal broad-crested side weir
Creators:
Říha, Jaromír; riha dot j at fce dot vutbr dot cz; Brno University of Technology, Faculty of Civil Engineering, Institute of Water Structures, Veveří 331/95, 602 00 Brno, Czech Republic.
Zachoval, Zbyněk; Brno University of Technology, Faculty of Civil Engineering, Institute of Water Structures, Veveří 331/95, 602 00 Brno, Czech Republic.
Uncontrolled Keywords:broad-crested side weir, experimental research, flow characteristics, hydraulics
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:63
Number:2
Page Range:pp. 164-171
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:8396
Item Type:Article
Deposited On:07 Apr 2015 13:04
Last Modified:07 Apr 2015 11:04

Citation

Říha, Jaromír; Zachoval, Zbyněk (2015) Flow characteristics at trapezoidal broad-crested side weir. Journal of Hydrology and Hydromechanics, 63 (2). pp. 164-171. ISSN 0042-790X

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