Open AccessPrediction the Manning’s Coefficient by HEC-RAS for Al-Meshkab River
Author(s) -
Jumana Hadi Sahib
Publication year - 2018
Publication title -
international journal of engineering and technology
Language(s) - English
Resource type - Journals
ISSN - 2227-524X
DOI - 10.14419/ijet.v7i4.37.23620
Subject(s) - hydrology (agriculture) , channel (broadcasting) , coefficient of determination , mathematics , surface finish , statistics , geotechnical engineering , geology , computer science , materials science , computer network , composite material
The Manning's coefficient represents the roughness characteristics of the channel, which directly affects open channel calculations. In this study, it been calculated which estimation of Manning's coefficient (n) by some of the collected data .The remaining data is utilized for check of the model testing with actual data, which is called verification. The model was adopted by a one-dimensional mathematical by using the HEC-RAS program. The region was studied at the upstream of the Al-Meshkab Barrage, where data were collected in 2010. The coefficient of Manning's roughness (n) is given well agreement between computed data and observed data at n equal to (0.031) for Al-Meshkab River.