Geometric and Frictional Effects on Sudden Releases

by Shih-Tun Su, (A.M.ASCE), Postdoctoral Fellow; Colorado State Univ., Fort Collins, CO,
Albert H. Barnes, (M.ASCE), Assoc. Prof. of Civ. Engrg.; Colorado State Univ., Fort Collins, CO,

Serial Information: Journal of the Hydraulics Division, 1970, Vol. 96, Issue 11, Pg. 2185-2200

Document Type: Journal Paper


The effects of resistance and channel cross-sectional geometry on the waves of sudden release are investigated. The analytical treatment follows Dressler's approach with the modification that channel cross-sectional geometry is included. Results obtained by the analysis include water surface profiles, mean velocity distribution and trajectory of positive wave front for different Chezy coefficients in rectangular, parabolic and triangular cross-sections.

Subject Headings: Cross sections | Geometrics | Friction | Wave velocity | Velocity distribution | Load and resistance factor design | Water surface profiles | Velocity profile

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