Use of brink depth in discharge measurement

TİĞREK Ş., Firat C. E., Ger A. M.

JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING, cilt.134, sa.1, ss.89-95, 2008 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 134 Sayı: 1
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1061/(asce)0733-9437(2008)134:1(89)
  • Dergi Adı: JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.89-95
  • Anahtar Kelimeler: discharge measurement, open channel flow, subcritical flow, Supercritical flow, weirs, RECTANGULAR FREE OVERFALL, FLOW MEASUREMENT, CHANNELS
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

The behavior of free surface flow at a rectangular free overfall is studied experimentally to obtain a relation between the brink depth and the flow rate. A series of experiments were conducted in a tilting flume with wide range of flow rates covering subcritical, critical, supercritical regimes, and two different roughnesses in order to develop a relationship between the discharge and the brink depth. An equation is proposed to determine the flow rate using the brink depth for a channel of known roughness and bed slope.