Modeling Non-Uniform-Sediment Fluvial Process by Characteristics Method
This article has a reply.
VIEW THE REPLYPublication: Journal of Hydraulic Engineering
Volume 121, Issue 2
Abstract
This paper presents a numerical model based on a multimode characteristics method for fully coupled simulation of water and sediment movement in mobile-bed alluvial channels with nonuniform bed materials. Along with the characteristics, the temporal evolutions of flow depth and velocity, bed elevation, and bed-material composition of a well-defined river reach with proper boundary conditions can be simultaneously determined. From the results of the test runs, the proposed model provides useful information about the interactions among disturbance waves of different orders of magnitude and their influence on the formation of flow field, bed topography, and bed-material composition. Such information cannot be easily obtained from finite-difference methods.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Anderson, D. A., Tannehill, J. C., and Pletcher, R. H. (1984). Computational fluid mechanics and heat transfer . Hemisphere Publishing Corp., New York, N.Y.
2.
Bell, R. G., and Sutherland, A. J.(1983). “Non-equilibrium bedload transport by steady flow.”J. Hydr. Engrg., ASCE, 109(3), 351–367.
3.
Chen, W. L. (1994). “A study on channel aggradation using multimode characteristics method.” MS thesis, Nat. Chiao Tung Univ., Hsinchu, Taiwan, R.O.C. (in Chinese).
4.
Correia, L. R. P., Krishnappan, G., and Graf, W. H.(1992). “Fully coupled unsteady mobile boundary flow model.”J. Hydr. Engrg., ASCE, 118(3), 476–494.
5.
De Vriend, M. (1973). “River bed variations—aggradation and degradation.”Pub. No. 107, Delft Hydraulics Lab., Delft, The Netherlands.
6.
Engelund, F., and Hansen, E. (1967). A monograph on sediment transport in alluvial streams . Danish Technical Press, Copenhagen, Denmark.
7.
Gerald, C. F., and Wheatley, P. O. (1989). Applied numerical analysis, 4th Ed., Addison-Wesley Publishing Co., New York, N.Y.
8.
Holly, F. M., and Rahuel, J. L.(1990). “New numerical/physical framework for mobile-bed modeling.”J. Hydr. Res., 28(4), 401–416.
9.
Lai, C.(1991). “Modeling alluvial-channel flow by multimode characteristics method.”J. Engrg. Mech., ASCE, 117(1), 32–53.
10.
Lai, C.(1994). “Multicomponent-flow analyses by multimode method of characteristics.”J. Hydr. Engrg., ASCE, 120(3), 378–395.
11.
Rahuel, J. L., Holly, F. M., Chollet, J. P., Belleudy, P. J., and Yang, G.(1989). “Modeling of riverbed evolution for bedload sediment mixtures.”J. Hydr. Engrg., ASCE, 115(11), 1521–1542.
12.
Wu, C. M. (1973). “Unsteady flow in open channel with movable bed.”Proc., Int. Symp. on River Mech., Int. Assoc. for Hydr. Res. (IAHR), Bangkok, Thailand, Vol. 3, 447–488.
13.
Yang, J. C., Yeh, K. C., and Wu, C. M. (1992). “Numerical simulation of transient sediment laden flow in an alluvial channel.”Proc., 5th Int. Symp. on River Sedimentation, Univ. of Karlsruhe, Karlsruhe, Germany, Vol. 1, 375–379.
14.
Yeh, K. C., Wu, C. M., Yang, J. C., and Li, S. J. (1993). “Nonuniform transient sediment transport modeling.”Proc., 1993 Nat. Conf. on Hydr. Engrg., ASCE, New York, N.Y., Vol. 2, 893–898.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 121 • Issue 2 • February 1995
Pages: 159 - 170
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Feb 1, 1995
Published in print: Feb 1995
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.