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

Haktanir T., Khalaf M. A.

TEKNIK DERGI, cilt.32, sa.4, ss.10919-10945, 2021 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 32 Sayı: 4
  • Basım Tarihi: 2021
  • Doi Numarası: 10.18400/tekderg.540640
  • Dergi Adı: TEKNIK DERGI
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.10919-10945
  • Anahtar Kelimeler: Discharge coefficient for partially-opened radial-gated spillways, FLOW
  • Erciyes Üniversitesi Adresli: Evet

Özet

Using the measured data on 15 laboratory models in USA, six models and one prototype in Turkey, the discharge coefficients (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 O and the ratio d/H-1, rather than O only where d and H-1 are the gate opening and the upstream head, and statistically significant regression equations are computed individually for each one of 22 cases.