Experimental Investigation of Permeable and Impermeable Groines Performance on Flow Pattern and Bed Topography in Erodible Channel

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fazli majid; Ansary Sahar; PAZIN SEDIGHE; BADPA ZEINAB

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Journal: Iranian Journal of Soil and Water Research Year:2020 | Volume:50 | Issue:10 Page(s): 2555-2569

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Information Journal Paper

Title

Experimental Investigation of Permeable and Impermeable Groines Performance on Flow Pattern and Bed Topography in Erodible Channel

Author(s)

fazli majid | Ansary Sahar | PAZIN SEDIGHE | BADPA ZEINAB | Issue Writer Certificate

Keywords

Permeable groinsQ1

ScouringQ1

flow patternQ1

Gabion groineQ1

two row groineQ1

one row groineQ1

Abstract

The erosion of riverbeds is one of the factors that causes changes in the morphology of rivers. Scour depth represents the amount of potential degradation of the flow around hydraulic structures located in the flow path. Therefore, it is necessary to determine the scour depth and flow rate. In this study, the experimental results of bed topography changes and flow patterns around impermeable and impermeable groines are compared. For permeable groines, two types of Gabion groines and one and two-row groines with a 90 degree angle to the flow were used. In the use of two-row groine, the two positions are considered parallel and zigzag. Experiments were performed in a rectangular channel with a moving bed of 60 cm width and a flow rate of 28 lit/s and Froude number of 0. 26. The results showed that the trend of maximum scour depth change with increasing permeability decreased. The scour depth in Gabion groines is much higher than rod groines with the same permeability. Also, the effect of increasing the row spacing of two-row groines on the prediction of the maximum scour depth for the zigzag type is additive and for the parallel type it is decreasing.

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APA: Copy

fazli, majid, Ansary, Sahar, PAZIN, SEDIGHE, & BADPA, ZEINAB. (2020). Experimental Investigation of Permeable and Impermeable Groines Performance on Flow Pattern and Bed Topography in Erodible Channel. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 50(10 ), 2555-2569. SID. https://sid.ir/paper/363675/en

Vancouver: Copy

fazli majid, Ansary Sahar, PAZIN SEDIGHE, BADPA ZEINAB. Experimental Investigation of Permeable and Impermeable Groines Performance on Flow Pattern and Bed Topography in Erodible Channel. IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2020;50(10 ):2555-2569. Available from: https://sid.ir/paper/363675/en

IEEE: Copy

majid fazli, Sahar Ansary, SEDIGHE PAZIN, and ZEINAB BADPA, “Experimental Investigation of Permeable and Impermeable Groines Performance on Flow Pattern and Bed Topography in Erodible Channel,” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 50, no. 10 , pp. 2555–2569, 2020, [Online]. Available: https://sid.ir/paper/363675/en

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