Analysis of initiation of sediment suspension from bed load
Date of Issue1999
School of Civil and Environmental Engineering
A theoretical analysis of the initiation of sediment suspension is performed based on the concept of probability of suspension. The proposed condition for the initiation of sediment suspension from the top of the bed-load layer is comparable with most existing empirical relationships for large particle Reynolds numbers. The study shows that a constant Rouse parameter can be used as the critical condition for sediment suspension only for large dimensionless particle diameters. When the probability of suspension is taken to be an infinitesimal value (P = 10^−7), the derived relationship of the Shields parameter and the particle Reynolds number is in good agreement with the updated Shields diagram.
DRNTU::Engineering::Civil engineering::Water resources
Journal of hydraulic engineering
© 1999 ASCE. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Hydraulic Engineering, American Society of Civil Engineers. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1061/(ASCE)0733-9429(1999)125:8(855)].