Experimental study on the effects of SFM structure on the sediment discharge efficiency from outlet gates in the reservoirs

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FardShyrayeh Mahdi; ABBASI SAEED

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Journal: JOURNAL OF HYDRAULICS Year:2019 | Volume:14 | Issue:2 (142) Page(s): 17-31

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Title

Experimental study on the effects of SFM structure on the sediment discharge efficiency from outlet gates in the reservoirs

Author(s)

FardShyrayeh Mahdi | ABBASI SAEED | Issue Writer Certificate

Keywords

Sediment discharge efficiencyQ1

SFM structureQ1

Outlet gatesQ1

ReservoirQ1

Abstract

The deposition of the sedimentary materials in water Reservoirs, especially around the bottom Outlet gates, is one of their main operational problems. The efficiency of the sediment discharge from the bottom Outlet gates is also very low. In the present study, a new method is proposed to increase the deposited sediments discharge efficiency, in which the so-called SFM1 structure consists of two parallel rows of columns has been installed at the Reservoir bed upstream of the outlet gate. One to six pairs of the columns with a permeability of 0%, 28. 6%, 37. 5%, 42. 9%, 50%, and 60% were installed in two parallel rows at relative placement spaces of 1, 2, 4 and 6 times the outlet gate diameter. Non-cohesive uniform sand aggregates with an average particle size of 0. 67 mm were tested as deposited sediment on the Reservoir bed. The results showed that the SFM structure considering the best conditions (i. e. a permeability of 37. 5% and relative distance of two rows of 2D) increased the average sediment discharge volume by 161% compared to the control case (reference test without SFM installation).

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APA: Copy

FardShyrayeh, Mahdi, & ABBASI, SAEED. (2019). Experimental study on the effects of SFM structure on the sediment discharge efficiency from outlet gates in the reservoirs. JOURNAL OF HYDRAULICS, 14(2 (142) ), 17-31. SID. https://sid.ir/paper/124180/en

Vancouver: Copy

FardShyrayeh Mahdi, ABBASI SAEED. Experimental study on the effects of SFM structure on the sediment discharge efficiency from outlet gates in the reservoirs. JOURNAL OF HYDRAULICS[Internet]. 2019;14(2 (142) ):17-31. Available from: https://sid.ir/paper/124180/en

IEEE: Copy

Mahdi FardShyrayeh, and SAEED ABBASI, “Experimental study on the effects of SFM structure on the sediment discharge efficiency from outlet gates in the reservoirs,” JOURNAL OF HYDRAULICS, vol. 14, no. 2 (142) , pp. 17–31, 2019, [Online]. Available: https://sid.ir/paper/124180/en

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