Bed Material Movement in Hyperconcentrated Flow
Publication: Journal of Hydraulic Engineering
Volume 111, Issue 6
Abstract
A series of experiments was made in a closed rectangular conduit with bentonite as fine particles and plastic beads as coarse particles. Compared with that in clear water, in bentonite suspensions coarse particles settle more slowly and start moving at a higher flow intensity. Due to the larger threshold velocity and smaller settling velocity, the bed load is smaller and the suspended load is larger. As a result, the total load, consisting of the bed load and the suspended load, is smaller in the low flow intensity region, but larger in the high flow intensity region. The increase of the suspended load favors the transition from dunes to plane bed. So in clay suspension dunes are lower, flatter, and change to plane bed at lower flow intensity. Correspondingly, the form resistance is smaller in clay suspension.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Ansley, R. W., and Smith, T. N., “Motion of Spherical Particles in a Bingham Plastic,” Journal of the American Institute of Chemical Engineers, Vol. 13, No. 6, 1967, pp. 1193–1196.
2.
Chien, N., Wan, Z., and Chien, Y., “The Flow with Heavy Sediment Concentration in the Yellow River,” Journal of Qinghua University, Vol. 19, No. 2, 1979, pp. 1–17 (in Chinese).
3.
Einstein, H. A., “The Bed Load Function for Sediment Transportation in Open Channel Flow,” United States Department of Agriculture, Soil Conservation Service, Washington D.C., 1950.
4.
Engelund, F., and Fredsae, J., “Transition from Dunes to Plane Bed in Alluvial Channels,” Series Paper No. 4, Institute of Hydrodynamics and Hydraulic Engineering, Technical University of Denmark, 1974.
5.
Engelund, F., and Fredsøe, J., “A Sediment Transport Model for Straight Alluvial Channels,” Nordic Hydrology 7, 1976, pp. 293–306.
6.
Kikkawa, H., and Fukuoka, S., “The Characteristics of Flow with Wash Load,” Proceedings, 13th Congress, International Association of Hydraulic Research, Vol. 2, 1969, pp. 233–240.
7.
Navntoft, E., “Et experimentelt studium i materialvanaring og om opslemmet transport,” Bulletin No. HY9, Licentiatrapport, Laboratoriet for Hydraulic, Danmarks tekniske Hojskole, Sept., 1971, pp. 1317–1329 (in Danish).
8.
Simons, D. B., Richardson, E. V., and Haushild, W. L., “Some Effects of Fine Sediment on Flow Phenomena,” Water‐Supply Paper 1498‐G, U.S. Geological Survey, 1963, p. 45.
9.
Wan, Z., Chien, Y., Yang, W., and Zhao, W., “Laboratorial Study of Hyperconcentrated Flow,” People's Yellow River, No. 1, 1979, pp. 53–65 (in Chinese).
10.
Wan, Z., “Bed Material Movement in Hyperconcentrated Flow,” Series Paper No. 31, Institute of Hydrodynamics and Hydraulic Engineering, Technical University of Denmark, 1982.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 111 • Issue 6 • June 1985
Pages: 987 - 1002
Copyright
Copyright © 1985 ASCE.
History
Published online: Jun 1, 1985
Published in print: Jun 1985
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.