Moradinejad, A., Haqi Abi, A., Tarabi, H. (2014). Selecting the most appropriate sediment transport equations by numerical model HEC-RAS.4.1 (Case Study: Markazi Province Qara-chai River). , 27(3), 123-131. doi: 10.22092/wmej.2014.106899
Amir Moradinejad; Amir Hamzeh Haqi Abi; Hassan Tarabi. "Selecting the most appropriate sediment transport equations by numerical model HEC-RAS.4.1 (Case Study: Markazi Province Qara-chai River)". , 27, 3, 2014, 123-131. doi: 10.22092/wmej.2014.106899
Moradinejad, A., Haqi Abi, A., Tarabi, H. (2014). 'Selecting the most appropriate sediment transport equations by numerical model HEC-RAS.4.1 (Case Study: Markazi Province Qara-chai River)', , 27(3), pp. 123-131. doi: 10.22092/wmej.2014.106899
Moradinejad, A., Haqi Abi, A., Tarabi, H. Selecting the most appropriate sediment transport equations by numerical model HEC-RAS.4.1 (Case Study: Markazi Province Qara-chai River). , 2014; 27(3): 123-131. doi: 10.22092/wmej.2014.106899

Selecting the most appropriate sediment transport equations by numerical model HEC-RAS.4.1 (Case Study: Markazi Province Qara-chai River)

پژوهش های آبخیزداری
Article 12, Volume 27, Issue 3 - Serial Number 104, September 2014, Pages 123-131    PDF (593.21 K)
Document Type: Research
DOI: 10.22092/wmej.2014.106899
Authors
Amir Moradinejad* 1; Amir Hamzeh Haqi Abi2; Hassan Tarabi2
1Education and Research Organization of the Ministry of Jihad and Agriculture
2Lorestan University
Abstract
Estimation of total sediment load or transmission rate is one of the critical approaches in the field of water resources projects. The aim of this study is to estimate the amount of sediments and calculation of transport power of Qara-Chai River in the Markazi Province through different Methods. For this research a rich  of 31 km was selected. After the basic information such as cross sections, geometrical features of path, roughness coefficients of, bed and laterals, suspended and bed sediment genus and grain size were extracted. Also, sediment discharge was estimated by HEC-RAS model. The results showed that equations of Englund-Hansen and Tuffalti don’t have significant difference with measured data at 5 percent level error. Meyer-Peter and Muller, Wilcocks, Acker -White and Laursen methods significantly differed which those observed (P<0.05). So sediment transport capacity increased from up to down because of increasing longitudinal slope so that in the final one third the highest changes exist.
Keywords
erosion; Sediment transport; bed deformation; Qara-Chai River; HEC-RAS 4.1
References
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