Research Article
Dec 1978
Uniformly Discharging Lateral Weirs
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VIEW THE REPLYAuthors: Amruthur S. Ramamurthy, M.ASCE, Luis Carballada, and Kanakutti Subramanya, M.ASCEAuthor Affiliations
Publication: Journal of the Irrigation and Drainage Division
Volume 104, Issue 4
Abstract
In certain applications, such as automated irrigation systems, multiple lateral weirs are housed in open channels in which spatially decreasing flow occurs. When the channel bed slope and the friction slope are very small, spatially decreasing subcritical channel flow results in a rising profile in the reach containing the multiple lateral weirs. This causes nonuniform distribution of weir outflows. For purposes of analysis, a single equivalent weir is considered and it is shown that uniform water surface profile ensuring uniform outflow can be obtained by modifying the weir system geometry. The proposed methods are simple and easy to construct, even in existing channels. A number of tests were conducted to verify the proposed methods. The present study is limited to rectangular open channels.
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Published In
Journal of the Irrigation and Drainage Division
Volume 104 • Issue 4 • December 1978
Pages: 399 - 412
Copyright
© 1978 American Society of Civil Engineers.
History
Published in print: Dec 1978
Published online: Feb 11, 2021
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Authors
Affiliations
Amruthur S. Ramamurthy, M.ASCE
Prof., Civ. Engrg. Dept., Concordia Univ., Montreal, Quebec, Canada
Luis Carballada
Lect., Civ. Engrg. Dept., Concordia Univ., Montreal, Quebec, Canada
Kanakutti Subramanya, M.ASCE
Prof., Civ. Engrg. Dept., India Inst. Of Sci., Kanpur, India
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.