A comparison of conveyance methods for compound channels


Mamak M.

KUWAIT JOURNAL OF SCIENCE & ENGINEERING, cilt.35, ss.19-38, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 35
  • Basım Tarihi: 2008
  • Dergi Adı: KUWAIT JOURNAL OF SCIENCE & ENGINEERING
  • Sayfa Sayıları: ss.19-38

Özet

One-dimensional (1-D) methods, namely, coherence method by Ackers (COHM) and exchange discharge method (EDM), and two-dimensional (2-D) method, namely, Shiono-Knight method (SKM) are investigated for computing the discharge capacity of a compound channel. The validity of the methods were tested against previously published experimental data sets. A comparison is made between 1-D and 2-D models, with respect to the accuracy and ease of application for conveyance calculations. It is shown that EDM is able to simulate the measured discharge values more accurately among 1-D methods and also gives less error than 2-D SKM for the data analyzed herein. EDM is hence recommended for estimating the discharge capacity of a compound channel.