Analytical Methodology for the Discharge-Stage Relation of Flexible Shape Palmer-Bowlus Flumes
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VIEW THE REPLYPublication: Journal of Irrigation and Drainage Engineering
Volume 146, Issue 8
Abstract
The flexible shape Palmer-Bowlus flume is a simple device for flow measurement in free-surface flow circular channels and conduits. In this study, the discharge-stage relation for Palmer-Bowlus flumes is determined based on the Bernoulli theorem. The proposed analytical method is able to account for geometric peculiarities and shape deformation of the flume for adaptation to pipes of different diameters, without need of experimental calibration. Experimental tests on different conduits demonstrate the robustness of the theoretical formulation for reliable free-surface flow measurement. Empirical criteria are also provided for assessing the limit of the proposed discharge-stage relation. The research will further encourage and support the use of these flexible and versatile flumes for hydraulic engineering applications.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The authors warmly thank Eng. Norberto Fiori, Research and Development Director of SGM Lektra srl, for his assistance in setting up the experimental equipment and in carrying out the validation tests.
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Journal of Irrigation and Drainage Engineering
Volume 146 • Issue 8 • August 2020
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©2020 American Society of Civil Engineers.
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Received: Aug 6, 2019
Accepted: Feb 24, 2020
Published online: May 20, 2020
Published in print: Aug 1, 2020
Discussion open until: Oct 20, 2020
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