Routing Graded Sediments in Streams: Formulations

by Deva K. Borah, (M.ASCE), Sr. Civ. Engr.; Tippetts-Abbett-McCarthy-Stratton, The TAMS Building, 655 Third Ave., New York, N.Y. 10017,
Carlos V. Alonso, (M.ASCE), Research Hydr. Engr.; U.S. Dept. of Agr. Sedimentation Lab., Oxford, Miss.,
Shyam N. Prasad, Prof.; Dept. of Civ. Engrg., The Univ. of Mississippi, University, Miss.,

Serial Information: Journal of the Hydraulics Division, 1982, Vol. 108, Issue 12, Pg. 1486-1503

Document Type: Journal Paper


A one-dimensional numerical model is developed for simulating the movement of well graded sediments through a stream network. The model is based on the physical processes governing the mechanics of sediment movement in alluvial channels. It incorporates the effect of sediment gradation on the stream's potential transport capacity. It also accounts for the effect of particle exchange between the sediment load and the bed, while simulating aggradation, degradation and armoring of the bed. The applicability of the model is restricted to noncohesive materials and relatively stable channel geometries. Any valid water routing algorithm can be used in simulating the movement of water.

Subject Headings: Numerical models | Sediment transport | Flood routing | Sediment | Rivers and streams | Hydraulic models | Alluvial channels | Bed loads

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