Analysis of Initiation of Sediment Suspension from Bed Load
Publication: Journal of Hydraulic Engineering
Volume 125, Issue 8
Abstract
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.
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References
1.
Bagnold, R. A. (1966). “An approach to the sediment transport problem for general physics.” Geological Survey Prof. Paper 422-I, Washington, D.C.
2.
Celik, I., and Rodi, W. (1991). “Suspended sediment-transport capacity for open channel flow.”J. Hydr. Engrg., ASCE, 117(2), 191–204.
3.
Cheng, N. S. (1997). “Simplified settling velocity formula for sediment particle.”J. Hydr. Engrg., ASCE, 123(2), 149–152.
4.
Cheng, N. S., and Chiew, Y. M. (1998). “Pick-up probability for sediment entrainment.”J. Hydr. Engrg., ASCE, 124(2), 232–235.
5.
Chien, N., and Wan, Z. H. (1983). Mechanics of sediment transport. Science Press, Beijing (in Chinese).
6.
Garcia, M., and Parker, G. (1991). “Entrainment of bed sediment into suspension.”J. Hydr. Engrg., ASCE, 117(4), 414–435.
7.
Grass, A. J. (1971). “Structural features of turbulent flow over smooth and rough boundaries.” J. Fluid Mechanics, Cambridge, U.K., 50(2), 233–255.
8.
Kironoto, B. A., and Graf, W. H. (1995). “Turbulence characteristics in rough uniform open-channel flow.” Proc., Inst. of Civ. Engrgs., Water, Maritime and Energy, 106, 333–344.
9.
Klebanoff, P. S. (1953). “Characteristics of turbulence in a boundary layer with zero pressure gradient.” Rep. No. 1247, National Advisory Committee for Aeronautics, Washington, D.C.
10.
Nezu, I. ( 1977). “Turbulent structure in open channel flow,” PhD thesis, Kyoto University, Kyoto, Japan.
11.
Sumer, B. M. ( 1986). “Recent developments on the mechanics of sediment suspension.” Transport of suspended solids in open channels, Euromech 192, Neubiberg, W. Bechteler, ed., Balkema, Rotterdam, The Netherlands, 3–13.
12.
Vanoni, V. A. (1975). Sedimentation engineering. ASCE, Reston, Va.
13.
van Rijn, L. C. (1984). “Sediment transport, Part II: Suspended load transport.”J. Hydr. Engrg., ASCE, 110(11), 1613–1641.
14.
Xie, J. H. (1981). River sediment engineering. Vol. 1, Water Resources Press, Beijing (in Chinese).
15.
Yalin, M. S., and Karahan, E. (1979). “Inception of sediment transport.”J. Hydr. Engrg., ASCE, 105(11), 1433–1443.
16.
Zyserman, J. A., and Fredsoe, J. (1994). “Data analysis of bed concentration of suspended sediment.”J. Hydr. Engrg., ASCE, 120(9), 1021–1042.
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Received: Oct 15, 1997
Published online: Aug 1, 1999
Published in print: Aug 1999
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