Discharge Coefficients for Radial-Gated Ogee Spillways by Laboratory Data and by Design of Small Dams

Authors : Tefaruk HAKTANIR, Mohammed KHALAF

Pages : 10919-10945

Doi:10.18400/tekderg.540640

View : 6 | Download : 1

Publication Date : 2021-07-01

Article Type : Research Paper

Abstract :Using the measured data on 15 laboratory models in USA, six models and one prototype in Turkey, the discharge coefficients insert ignore into journalissuearticles values(C’s); of radial-gated ogee spillways for various gate openings and lake water surface elevations are computed. Comparison of these C’s for 22 spillways with the ones given by Figure 9-31 of Design of Small Dams does not show close agreements. It is determined that C depends on both the angle Ɵ and the ratio d/H1, rather than Ɵ only where d and H1 are the gate opening and the upstream head, and statistically significant regression equations are computed individually for each one of 22 cases.
Keywords : discharge coefficient for partially opened radial gated spillways, ogee spillways, coefficient