Boundary Shear in Channel with Flood Plain

by Robert C. Myers, Sir William Halcrow and Parts., Consulting Engrs., London, England,
Elsayed M. Elsawy, Lect.; Civ. Engrg. Dept., Queen's Univ. of Belfast, Belfast, Northern Ireland,

Serial Information: Journal of the Hydraulics Division, 1975, Vol. 101, Issue 7, Pg. 933-946

Document Type: Journal Paper


Shear stress distributions were measured around the periphery of a channel of complex cross section using Preston tube. The complex section consists of a deep channel and a flood plain. The measurements were carried out in the laboratory for flow in the full cross section and when the flow was confined to the deep section. In this way it was possible to compare shear stress distributions under both isolated and interacting conditions. This has revealed that the presence of the interaction between a channel and its flood plain has significantly altered the values and distributions of boundary shear.

Subject Headings: Boundary shear | Shear stress | Stress distribution | Flow measurement | Flood plains | Cross sections | Tubes (structure)

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