Theoretical Study and Application of Sediment Movement on Bed Surface

Yanqing Li; Daming Li; Shean Bie; Hongqiang Zhang; Xingchen Tang; Zhu Zhen

doi:10.6180/jase.201912_22(4).0006

Theoretical Study and Application of Sediment Movement on Bed Surface

Yanqing Li This email address is being protected from spambots. You need JavaScript enabled to view it.¹, Daming Li¹, Shean Bie¹, Hongqiang Zhang¹, Xingchen Tang¹ and Zhu Zhen¹

¹State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, P.R. China

Received: July 23, 2019
Accepted: October 4, 2019
Publication Date: December 1, 2019

Download Citation: ||https://doi.org/10.6180/jase.201912_22(4).0006

ABSTRACT

The research of sediment movement on bed surface is one of the most important coastal problems around the world. In this paper, the vertical distribution formula of sediment concentration is improved by summarizing theoretical formulas of predecessors. A developed formula of total sediment carrying capacity is obtained by dimensional analysis. The formulae of sediment carrying capacity of suspended load and the bed surface deformation equation are derived by using micro element analysis method. The equation for calculating and simulating the erosion and deposition of the bed surface under the condition of stable bed surface is simplified. The flow around a cylinder is calculated and the distribution of erosion and siltation field is plotted.

Keywords: Formula Derivation, Sediment Movement, Theoretical Analysis

REFERENCES

[1] Li, D. M, H. P. Zhang, and Y. X. Gao (2002) Series perturbationgs approximate solutions to N-S equations and modification to asymptotic expansion matched
method, Applied Mathematics and Mechanics 23(8), 963972. doi: 10.1007/BF02437802
[2] Li, D. M., X. Y. Li, Y. Q. Li, and R. J. Farahani (2015) Flow pattern analysis of linear gradient flow distribution, Appl. Math. Mech. –Engl. Ed. 36(1), 81106. doi:10.1007/s10483-015-1920-9
[3] Hinton, D., R. H. Hotchkiss, and D. P. Ames (2017) Comprehensive and quality-controlled bedload transport database, J. Hydraul. Eng. 143(2), 06016024. doi:10.1061/(ASCE)HY.1943-7900.0001221
[4] Meyer-Peter, E., and R. Müller (1948) Formulas for bed-load transport, Proc., 2nd IAHR Congress, Vol. A2, IAHR, Delft, Netherlands, 1–26.
[5] Bagnold, R. A. (1977) Bed load transport by natural rivers, Water Resources Research 13(2), 303312. doi:10.1029/WR013i002p00303
[6] Bagnold, R. A. (1973) The nature of saltation and of ‘bed-load’ transport in water, Proceedings of the Royal Society of London, 332(1591), 473504. doi: 10.1098/rspa.1973.0038
[7] Einstein, H. A. (1942) Formulas for the transportation of bed load, Trans. ASCE 107, 561–597.
[8] Yalin, M. S. (1972) River Mechanics, Pergamon Press, Oxford, 1219.
[9] Engelund, F., and FredsØe (1976) A sediment transport model for straight alluvial channels, Nordic Hydrology 7, 293306. doi: 10.2166/nh.1976.0019
[10] Qian, N., and Z. H. Wan (1983) Mechanics of Sediment Transport, Beijing Science Press.