Shape and Dimensions of Stationary Dunes in Rivers

by Jorgen Fredsoe, Assoc. Prof.; Inst. of Hydrodynamics and Hydraulic Engrg., Technical Univ. of Denmark, Lyngby, Denmark,


Serial Information: Journal of the Hydraulics Division, 1982, Vol. 108, Issue 8, Pg. 932-947


Document Type: Journal Paper

Discussion: Greenstreet Greg S. (See full record)
Discussion: van Rijn Leo C. (See full record)
Closure: (See full record)

Abstract: The shape and dimensions (length, height) of sand dunes in rivers are calculated by use of the measured bed shear stress distribution downstream a rearward-facing step. The transport of sediment is split up into bed load and suspended load, which makes it possible to explain the transition to plane bed. The model can predict flow-resistance curves in alluvial streams.

Subject Headings: Bed materials | Bed loads | Suspended loads | Dunes | Shear stress | Stress distribution | Sediment transport

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