Modified, Trapezoidal Venturi Channel
Publication: Journal of Irrigation and Drainage Engineering
Volume 112, Issue 3
Abstract
The flow pattern resulting from a circular cone immersed in a rectangular channel is investigated under critical flow conditions. The apparatus may be used for both permanent and mobile discharge evaluation in open channels. Owing to the low weight, the high precision of finishing, and its reasonable price when compared to the conventional structures, the modified Venturi Channel may be regarded as a useful instrument. The circular cone is particularly well suited to watercourses in which discharge spectrum is considerable, thereby resulting in moderate approaching flow depth variation. Its rating curve is investigated by accounting for streamline curvature effects. Experiments corroborate the theoretical predictions and indicate that the flow characteristics are governed by the Froude similarity law.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Blau, E. (1960). “Venturikanäle,” Veröffentlichungen Forschungsanstalt Schiffahrt, Wasser‐ und Grundbau, Nr. 8, Akademie Verlag, Berlin, Germany.
2.
Bos, M. G. (1976). “Discharge Measurement Structures,” Laboratorium voor Hydraulica en Afvoerhydrologie, Report No. 4, Wageningen, The Netherlands.
3.
Chow, V. T. (1959). Open Channel Hydraulics, McGraw‐Hill Book Co., New York, N.Y.
4.
Hager, W. H., and Hutter, K. (1984). “Approximate Treatment of Plane Channel Flow,” Acta Mechanica, Vol. 51, 31–48.
5.
Hager, W. H. (1985a). “Modified Venturi Channel,” Proc. ASCE, Journal of Irrigation and Drainage Engineering, 111(1), 19–35.
6.
Hager, W. H. (1985b). “Abflusserscheinungen in offenen Kanaelen,” (Flow pattern in open channels), Schweizer Ingenieur und Architekt, Vol. 104, 252–264.
7.
Hager, W. H. (1985c). “Critical Flow Condition in Open Channel Hydraulics,” Acta Mechanica, Vol. 54, 1985, 157–179.
8.
Hager, W. H. (1985d). “Der modifizierte Venturikanal,” Gas‐Wasser‐Abwasser, Vol. 65, 684–691.
9.
Khafagi, A. (1942). Der Venturikanal, Mittl. Versuchsanstalt Wasserbau, ETH Zurich, Nr. 1, Leemann, Zurich, Switzerland.
Information & Authors
Information
Published In
Copyright
Copyright © 1986 ASCE.
History
Published online: Aug 1, 1986
Published in print: Aug 1986
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.