Prediction the Manningâ€™s Coefficient by HEC-RAS for Al-Meshkab River
Keywords:bed roughness, Manningâ€™s Coefficient, river, calibration, verification, HEC-RAS program Semicolon.
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.
 Addab H. F 2011. Estimation of Sediment Quantity of Al-Meshkab Regulator Channel. M.Sc. thesis, College of Engineering, University of Kufa, Iraq.
 Chow, V.T. 1959. Open-channel hydraulics. McGraw-Hill, New York.
 Fenton, J. D. 2002. The application of Numerical Methods and Mathematics to Hydrography. Proc. 11th Australasian Hydrographic Conference, 3-6 July, Sydney.
 Fread, D.L. and Lewis, J.M. 1998. NWS FLDWAV Model. Hydrologic Research Laboratory. Office of Hydrology, National Weather Service (NWS), NOAA.
 Gupta, B.L. 2007. Water resources systems and management. 2nd edition .ISBN:81-8014-106-3, Standard Publishers, Delhi. www. engineeringbooks.co.in
 HEC (Hydrologic Engineering Center). 2009. One- dimensional unsteady flow through a full network of open channels. User's manual, U.S. Army Corps of Engineers, Davis, CA. (http://www.hec.usace.army. mil/software/hec-ras/hecrasdownload. html).
 Hameed L. K. 2011.Inverse Routing of Flood Wave for Shatt ALHilla River. M.Sc. thesis, College of Engineering, University of Babylon, Iraq.
 Kalabaa,D. Ivana, I. and. Cikara,D, 2014.The inital analysis of the river IBAR Temperature downstream of the lake GAZIVODE. A Faculty of Mechanical Engineering, University of Pristina, Kosovska Mitrovica, Serbia.
 Stevenson, D. 2009.1-D HEC-RAS Model and Sensitivity Analysis for St. Clair River from 1971 â€“ 2007. International Joint Commission International Upper Great Lakes Study 234 Laurier Ave. W, 22nd Floor Ottawa, ON, K1P 6K6.
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