Simple Flume for Flow Measurement in Sloping Open Channel
Publication: Journal of Irrigation and Drainage Engineering
Volume 133, Issue 1
Abstract
First, this paper presents a new flume for measuring flow discharge in sloping channels, originally proposed by Samani and Magallanez for use in a horizontal channel. The flume is obtained by inserting two semicylinders in a rectangular cross section. Then, using dimensional analysis and the self-similarity theory, the stage-discharge relationship of the flume is theoretically deduced. For determining the two coefficients of the power stage-discharge equation, some experimental runs are carried out using flumes characterized by different values of the contraction ratio (ranging from 0.17 to 0.81) and of the flume slope (ranging from 0.5 to 3.5%). Finally, for a given range of the contraction ratio, the relationships for estimating the two coefficients of the stage-discharge equation are obtained.
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Acknowledgments
This research was supported by a grant from the Ministero Istruzione Università e Ricerca Scientifica (MIUR), Governo Italiano, “Monitoraggio dei processi erosivi nel bacino sperimentale Sparacia,” and a grant MIUR quota of 60%. Prof. Ferro set up the research. Both writers analyzed the results and participated in writing the paper.
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Information & Authors
Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 133 • Issue 1 • February 2007
Pages: 71 - 78
Copyright
© 2007 ASCE.
History
Received: Feb 15, 2005
Accepted: Apr 26, 2006
Published online: Feb 1, 2007
Published in print: Feb 2007
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