Overfall Stress and Pressure Distributions

by Kerry M. Robinson, USDA ARS, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


The magnitude and distribution of hydraulic shear stress and pressure on the boundary of a straight drop overfall are presented for multiple overfall heights and flow rates. Hydraulic stress and pressure exert a major influence on headcut mechanics, as well as on conventional hydraulic structure performance. Stress and pressure were measured in time and space on the boundary of an overfall using hot-film anemometry and pressure transducers.

Subject Headings: Hydraulic structures | Pressure distribution | Shear stress | Instrumentation | Stress distribution

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