A simple formula for predicting settling velocity of sediment particles

Song Zhiyao; Wu Tingting; Xu Fumin; Li Ruijie

doi:10.3882/j.issn.1674-2370.2008.01.005

Volume 1 Issue 1

Mar. 2008

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Song Zhiyao, Wu Tingting, Xu Fumin, Li Ruijie. 2008: A simple formula for predicting settling velocity of sediment particles. Water Science and Engineering, 1(1): 37-43 . doi: 10.3882/j.issn.1674-2370.2008.01.005

Citation:

Song Zhiyao, Wu Tingting, Xu Fumin, Li Ruijie. 2008: A simple formula for predicting settling velocity of sediment particles. Water Science and Engineering, 1(1): 37-43 . doi: 10.3882/j.issn.1674-2370.2008.01.005

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A simple formula for predicting settling velocity of sediment particles

doi: 10.3882/j.issn.1674-2370.2008.01.005

Song Zhiyao^{1,2,3
,},
Wu Tingting^1,2,
Xu Fumin^2,3,
Li Ruijie^2,3

1.
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, P. R. China
2.
College of Ocean, Hohai University, Nanjing 210098, P. R. China
3.
Key Laboratory of Coastal Disaster and Defence, Ministry of Education, Hohai University, Nanjing

More Information

Corresponding author: Song Zhiyao
Received Date: 2009-01-11
Rev Recd Date: 2009-03-02

Abstract

Abstract

Based on the general relationship described by Cheng between the drag coefficient and the Reynolds number of a particle, a new relationship between the Reynolds number and a dimensionless particle parameter is proposed. Using a trial-and-error procedure to minimize errors, the coefficients were determined and a formula was developed for predicting the settling velocity of natural sediment particles. This formula has higher prediction accuracy than other published formulas and it is applicable to all Reynolds numbers less than 2×105.
- settling velocity,
- spherical particle,
- sediment particle,
- sediment transport,
- trial-and-error metho