Determining the dominant flow of Dez river

Subject Areas : River Engineering

علی عصاره ¹ , عباس گوبانی ²

1 - گروه علوم و مهندسی آب
2 -

Received: 2023-03-01 Accepted : 2023-05-28 Published : 2023-05-28

Keywords: دبی رسوب, دز, Dez, Dominant flow, effective flow rate, full section flow rate, sediment flow rate, جریان غالب, دبی موثر, دبی مقطع پر,

Abstract :

In the morphodynamical issues and organization of the river, from the dominant flow of the river that forms the waterway; It is used as a design discharge in issues such as river restoration. The data of average daily flow, maximum annual peak, sediment flow, Eshel- Discharge and cross-section profile of the river in the target station in the period of 2012-2021were prepared from Khuzestan Province Water Affairs. The results of the research showed that the effective discharge in Dez river is 246 cubic meters per second. Considering that the power value of the relation of sediment discharge was greater than one; It can be concluded that the suspended sediment load of Dez river is high and the river is sandy. The average annual passing sediment was 344426.48 tons per year and the sediment passing rate from Dezful station was 10.92 kg/s. The number of the full section was 9.11 meters from the river bottom and the discharge of the full section was 2709.44 cubic meters per second

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