TECHNICAL PAPERS
May 11, 2010

Evaluation of a Novel Approach to Determine the Critical Shields Stress

Publication: Journal of Hydrologic Engineering
Volume 15, Issue 11

Abstract

This study investigated the sediment entrainment and critical shear stress in gravel-bed rivers. Measured rates of bed load transport were used to estimate the Shields stress parameter. The computed parameters were compared to those derived from the Meyer-Peter-Muller method. The agreement between these methods was good and the values of τc obtained by the two methods can be justified by the Shields diagram and decreased with increasing d50/d90 (where τc is critical Shields stress, d50 is sediment size with 50% particles finer and d90 sediment size with 90% particles finer).

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Published In

Go to Journal of Hydrologic Engineering
Journal of Hydrologic Engineering
Volume 15Issue 11November 2010
Pages: 892 - 900

History

Received: Oct 5, 2009
Accepted: Apr 13, 2010
Published online: May 11, 2010
Published in print: Nov 2010

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Artemis Motamedi [email protected]
Ph.D. Student, Dept. of Water Engineering, Isfahan Univ. of Technology, 84156, Iran (corresponding author). E-mail: [email protected]
Hossein Afzalimehr [email protected]
Associate Professor, Dept. of Water Engineering, Isfahan Univ. of Technology, 84156, Iran. E-mail: [email protected]
Vijay P. Singh [email protected]
Caroline and William N. Lehrer Distinguished Chair in Water Engineering, Professor of Biological and Agricultural Engineering, and Professor of Civil and Environmental Engineering, Dept. of Biological and Agricultural Engineering, Texas A&M Univ., College Station, TX 77802-2117. E-mail: [email protected]

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