Discharge Coefficient of Rectangular Side Weirs
Publication: Journal of Irrigation and Drainage Engineering
Volume 120, Issue 4
Abstract
The characteristics of flow over side weirs are taken into account to determine the discharge coefficient for subcritical flow conditions under the assumption of constant‐specific energy. The main‐channel discharge, length of the weir crest, and sill height of the weir are treated as the controlled variables. The discharge coefficient is found to depend on the upstream Froude number and, contrary to earlier findings, also on the ratio of sill height to upstream flow depth . Multiple regression analysis is conducted to establish the relationship of with both and taken together. The relationship is of linear form and provides an easy means of estimating .
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Cheong, H. (1991). “Discharge coefficient of lateral diversion from trapezoidal channel.” J. Irrig. Drain. Engrg., ASCE, 117(4), 461–475.
2.
Collinge, V. K. (1957). “The discharge capacity of sideweirs.” Proc., Instn. of Civ. Engrs., Vol. 6, Institution of Civil Engineers, London, England, 288–304.
3.
De‐Marchi, G. (1934). “Essay on the performance of lateral weirs.” L. Energia Elettrica, Milan, Italy, 11, 849–860.
4.
Kumar, C. P., and Pathak, S. L. (1987). “Triangular side weirs.” J. Irrig. Drain. Engrg., ASCE, 113(1), 98–106.
5.
Ramamurthy, A. S., and Carballada, L. (1980). “Lateral weir flow model.” J. Irrig. Drain. Engrg., ASCE, 112(1), 130–138.
6.
Ranga Raju, K. G., Prasad, B., and Gupta, S. K. (1979). “Side weirs in rectangular channels.” J. Hydr. Engrg., ASCE, 105(5), 547–554.
7.
Singh, R. (1992). “Experimental investigations on flow characteristics of side weirs for developing automated field irrigation system.” PhD thesis, Indian Institute of Technology, Kharagpur, India.
8.
Subramanya, K., and Awasthy, S. C. (1972). “Spatially varied flow over side weirs.” J. Hydr. Engrg., ASCE, 98(1), 1–10.
Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 120 • Issue 4 • July 1994
Pages: 814 - 819
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Jan 8, 1993
Published online: Jul 1, 1994
Published in print: Jul 1994
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.