TECHNICAL NOTES
Sep 13, 2002

Exponential Formula for Bedload Transport

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Publication: Journal of Hydraulic Engineering
Volume 128, Issue 10

Abstract

An exponential formula that does not involve the concept of the critical shear stress is derived in this study for computing bedload transport rates. The formula represents well various experimental data sets ranging from the weak transport to high shear conditions. Comparisons of the present study are also made with many previous bedload formulas commonly cited in the literature.

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References

Bagnold, R. A.(1973). “The nature of saltation and bed load transport in water.” Proc. R. Soc. London, Ser. A, 332, 473–504.
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Chien, N., and Wan, Z. (1999). Mechanics of sediment transport, ASCE, New York.
Einstein, H. A.(1942). “Formulas for the transportation of bed-load.” Trans. Am. Soc. Civ. Eng., 107, 561–577.
Einstein, H. A. (1950). “The bed-load function for sediment transportation in open channel flows.” Tech. Bull. No. 1026, U.S. Dept. of Agriculture, Soil Conservation Service.
Englund, F., and Fredsoe, J.(1976). “A sediment transport model for straight alluvial channels.” Nord. Hydrol., 7, 293–306.
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Lavelle, J. W., and Mofjeld, H. O.(1987). “Do critical stresses for incipient motion and erosion really exist?” J. Hydraul. Eng., 113(3), 370–385.
Meyer-Peter, E., and Mueller, R. (1948). “Formulas for bed-load transport.” Proc., 2nd Meeting of International Association for Hydraulic Research, Stockholm, Sweden, 26 pp.
Paintal, A. S.(1971). “Concept of critical shear stress in loose boundary open channels.” J. Hydraul. Res., 1, 90–113.
Taylor, B. D., and Vanoni, V. A.(1972). “Temperature effects of low-transport, flat-bed flows.” J. Hydraul. Div., Am. Soc. Civ. Eng., 98(8), 1427–1445.
Wilson, K. C.(1966). “Bed-load transport at high shear stress.” J. Hydraul. Div., Am. Soc. Civ. Eng., 92(6), 49–59.
Yalin, M. S. (1977). Mechanics of sediment transport, Pergamon, Oxford.

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Go to Journal of Hydraulic Engineering
Journal of Hydraulic Engineering
Volume 128Issue 10October 2002
Pages: 942 - 946

History

Received: Sep 26, 2001
Accepted: Apr 8, 2002
Published online: Sep 13, 2002
Published in print: Oct 2002

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Authors

Affiliations

Nian-Sheng Cheng
Assistant Professor, Environmental Engineering Research Centre, School of Civil and Structural Engineering, Nanyang Technological Univ., Nanyang Ave., Singapore 639798.

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