Analytical Model for Stage-Discharge Prediction in Rectangular Ice-Covered Channels
Publication: Journal of Hydraulic Engineering
Volume 142, Issue 7
Abstract
This paper develops an analytical model to predict the stage-discharge relationship for flow in rectangular ice-covered channels. The flow cross section are divided into three subsections on the basis of hydraulic radius separation theory. Based on the determination of flow characteristics, such as hydraulic radius, subsection area, and mean velocity within each flow subsection, an analytical model for discharge assessment in a rectangular ice-covered channel is presented. Comparisons between the predicted results of the proposed model and the collected data from literature show that the proposed method does well in predicting the stage-discharge relationship in rectangular ice-covered channels. The effects of the main influencing parameters on the stage-discharge relationship are discussed and a simplified model is presented for stage-discharge prediction in wide ice-covered channels.
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Acknowledgments
The financial support for this work was provided by the Major Science and Technology Program for Water Pollution Control and Treatment (No. 2013ZX07102-006) and the Natural Science Foundation of China (No. 51439007). The authors are grateful to the anonymous reviewers for providing numerous constructive suggestions.
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Published In
Journal of Hydraulic Engineering
Volume 142 • Issue 7 • July 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Aug 27, 2015
Accepted: Dec 22, 2015
Published online: Mar 17, 2016
Published in print: Jul 1, 2016
Discussion open until: Aug 17, 2016
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