Discharge coefficient of sharp-crested side weir in trapezoidal channel with different side-wall slopes under subcritical flow conditions

Keshavarzi, A; Ball, J

Discharge coefficient of sharp-crested side weir in trapezoidal channel with different side-wall slopes under subcritical flow conditions

Keshavarzi, A Ball, J

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Publication Type:: Journal Article
Citation:: Irrigation and Drainage, 2014, 63 (4), pp. 512 - 522
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Keshavarzi, A	en_US
dc.contributor.author	Ball, J https://orcid.org/0000-0001-8342-1916	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	Irrigation and Drainage, 2014, 63 (4), pp. 512 - 522	en_US
dc.identifier.issn	1531-0353	en_US
dc.identifier.uri	http://hdl.handle.net/10453/37813
dc.description.abstract	© 2014 John Wiley & Sons, Ltd. In this study, a comprehensive experimental study was performed to find an equation for the estimation of flow discharge over a sharp-crested side weir in a trapezoidal channel. A physical model with side slopes of 1.5, 1, 0.5 and 0 was used and sharp-crested side weirs with different lengths and heights were tested under different flow conditions. In this study, 212 laboratory tests were performed with different side-wall slopes under subcritical flow conditions since the Froude number=0.08-0.80. As a result, using statistical analysis, a linear relationship is proposed here for estimation of the side-weir discharge coefficient in a trapezoidal channel. The new equation is a function of the upstream Froude number, weir height and side-wall slope. The new equation enables estimation of flow discharge over the side weir with consideration of different side slopes. Furthermore, previously proposed discharge relationships for estimation of the discharge coefficient over sharp-crested side weirs were compared with the new equation and experimental data from this study and this comparison is also reported in this paper.	en_US
dc.relation.ispartof	Irrigation and Drainage	en_US
dc.relation.isbasedon	10.1002/ird.1856	en_US
dc.subject.classification	Agronomy & Agriculture	en_US
dc.title	Discharge coefficient of sharp-crested side weir in trapezoidal channel with different side-wall slopes under subcritical flow conditions	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	63	en_US
utslib.for	0905 Civil Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access
pubs.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	63	en_US

Abstract:

© 2014 John Wiley & Sons, Ltd. In this study, a comprehensive experimental study was performed to find an equation for the estimation of flow discharge over a sharp-crested side weir in a trapezoidal channel. A physical model with side slopes of 1.5, 1, 0.5 and 0 was used and sharp-crested side weirs with different lengths and heights were tested under different flow conditions. In this study, 212 laboratory tests were performed with different side-wall slopes under subcritical flow conditions since the Froude number=0.08-0.80. As a result, using statistical analysis, a linear relationship is proposed here for estimation of the side-weir discharge coefficient in a trapezoidal channel. The new equation is a function of the upstream Froude number, weir height and side-wall slope. The new equation enables estimation of flow discharge over the side weir with consideration of different side slopes. Furthermore, previously proposed discharge relationships for estimation of the discharge coefficient over sharp-crested side weirs were compared with the new equation and experimental data from this study and this comparison is also reported in this paper.

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http://hdl.handle.net/10453/37813