Estimate of Sediment Pickup Rate with the Densimetric Froude Number
Publication: Journal of Hydraulic Engineering
Volume 142, Issue 3
Abstract
The present study shows that the sediment pickup rate is better correlated with the densimetric Froude number than the Shields number. With laboratory data collected in open channel flows, an empirical formula for estimating the pickup rate is proposed. Because it does not involve the critical condition for the incipient sediment motion, the formula can be applied to sediment entrainment of different stages including weak sediment motion. In spite of the fact that the experiments were carried with a limited range of sediment particle diameters, ranging from 0.23 to 0.86 mm, the results obtained are also supported by several series of data reported in the literature.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The first author is grateful for the support provided through the 111 Project under Grant No. B12032 from the Ministry of Education and State Administration of Foreign Experts Affairs, the People’s Republic of China.
References
Cao, Z. X. (1997). “Turbulent bursting-based sediment entrainment function.” J. Hydraul. Eng., 233–236.
Cheng, N.-S. (2008). “Formulas for friction factor in transitional regimes.” J. Hydraul. Eng., 1357–1362.
Damgaard, J. S., Whitehouse, R. J. S., and Soulsby, R. L. (1997). “Bed-load sediment transport on steep longitudinal slopes.” J. Hydraul. Eng., 1130–1138.
Dey, S., and Debnath, K. (2001). “Sediment pickup on streamwise sloping beds.” J. Irrig. Drain. Eng., 39–43.
Einstein, H. A. (1950). “The bed-load function for sediment transportation in open channel flows.” U.S. Dept. of Agriculture, Washington, DC.
Emadzadeh, A. (2014). “Experimental investigation of turbulence effects on sediment pickup rate in open channel flows.” Ph.D. thesis, Nanyang Technological Univ., Singapore.
Emadzadeh, A., and Cheng, N. S. (2015). “Measurements of sediment pickup rate over dune covered bed.” Environ. Fluid Mech., 1–22.
Fernandez Luque, R. (1974). “Erosion and transport of bed-load sediment.” Ph.D. thesis, Delft Univ. of Technology, Delft, the Netherlands.
Hager, W. H. (2007). “Scour in hydraulic engineering.” Proc. Inst. Civ. Eng.-Water Manage., 160(3), 159–168.
Hong, J.-H., Chiew, Y.-M., and Cheng, N.-S. (2013). “Scour caused by a propeller jet.” J. Hydraul. Eng., 1003–1012.
Nakagawa, H., and Tsujimoto, T. (1980). “Sand bed instability due to bed load motion.” J. Hydraul. Div., 106(12), 2029–2051.
Okayasu, A., Fujii, K., and Isobe, M. (2010). “Effect of external turbulence on sediment pickup rate.” Coastal Engineering Proc., J. M. Smith and P. J. Lynett, eds., Shanghai, China.
Van Rijn, L. C. (1984). “Sediment pick-up functions.” J. Hydraul. Eng., 1494–1502.
Wahl, T. (2000). “Analyzing ADV data using WinADV.” Joint Conf. on Water Resource Engineering and Water Resources Planning and Management, ASCE, Minneapolis, 1–10.
Zhong, D., Wang, G., and Ding, Y. (2011). “Bed sediment entrainment function based on kinetic theory.” J. Hydraul. Eng., 222–233.
Information & Authors
Information
Published In
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Mar 21, 2015
Accepted: Sep 15, 2015
Published online: Nov 6, 2015
Published in print: Mar 1, 2016
Discussion open until: Apr 6, 2016
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.