Sinuosity Dependency on Stage Discharge in Meandering Channels
Publication: Journal of Irrigation and Drainage Engineering
Volume 142, Issue 9
Abstract
Five different sinuosities of trapezoidal meandering channels were tested to investigate the effects of the geometry and flow parameters on the resistance to flow in meandering channels. The Manning’s roughness coefficient is considered to depend on the aspect ratio, Reynolds number, Froude number, bed slope, and sinuosity. An empirical equation to predict the Manning’s roughness coefficient of a meandering channel is obtained by using laboratory experimental data. The empirical equation used takes care of these geometric and hydraulic nondimensional parameters. The equation gives satisfactory stage-discharge results as compared to other approaches for large-scale channels, small-scale channels, and natural river data.
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Acknowledgments
The authors acknowledge the support received from the Department of Science and Technology, Government of India, under Grant Number SR/S3/MERC/066/2008. The authors also thank Professor Subhasish Dey, Civil Engineering Department of Indian Institute of Technology (IIT), Kharagpur, India for his support in the research work.
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Published In
Journal of Irrigation and Drainage Engineering
Volume 142 • Issue 9 • September 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Sep 11, 2015
Accepted: Jan 26, 2016
Published online: Apr 27, 2016
Published in print: Sep 1, 2016
Discussion open until: Sep 27, 2016
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