Simple Methods for Direct Computation of Bed Roughness due to Sediment Transport
Publication: Journal of Hydraulic Engineering
Volume 147, Issue 8
Abstract
The aim of this technical note is to present methods that allow for direct computation of the bed roughness due to sediment transport based on a formula developed in the literature for cases involving current or waves separately. The methods result in approximate nondimensional expressions for the exact solutions in terms of polynomials determined by least-square fits, where the accuracy of the polynomials is high. Using the present methods may significantly reduce calculation times of roughness due to sediment transport in numerical models of morphological change.
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Data Availability Statement
All data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
Support from the China Scholarship Council (CSC) is gratefully acknowledged. Also, highly fruitful comments by the anonymous reviewers helped to significantly improve the paper, which is greatly appreciated.
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Published In
Journal of Hydraulic Engineering
Volume 147 • Issue 8 • August 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Oct 23, 2020
Accepted: Mar 19, 2021
Published online: May 22, 2021
Published in print: Aug 1, 2021
Discussion open until: Oct 22, 2021
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