EXPERIMENTAL INVESTIGATION ON THE EFFECTS OF SELECTIVE WITHDRAWAL GATE ON VENTING OF TURBID DENSITY CURRENT

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ZAYERI M.R.; GHOMESHI M.; SHAFAEI BAJESTAN M.; FATHI A.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2016 | Volume:12 | Issue:3 Page(s): 180-188

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Title

EXPERIMENTAL INVESTIGATION ON THE EFFECTS OF SELECTIVE WITHDRAWAL GATE ON VENTING OF TURBID DENSITY CURRENT

Author(s)

ZAYERI M.R. | GHOMESHI M. | SHAFAEI BAJESTAN M. | FATHI A. | Issue Writer Certificate

Keywords

TURBID DENSITY CURRENTQ1

RESERVOIR MANAGEMENTQ2

VENTING EFFICIENCYQ2

RESERVOIR OUTLETQ2

Abstract

Turbidity currents are one of the factors affecting sedimentation in reservoirs which reduces the water capacity of reservoirs and useful life of dams. Opening bottom gates is a conventional method for venting these currents preserving the useful volume of the reservoir. Choose suitable heights for gates on a dam has variety of functions in management of reservoirs and as well can have a major impact on the outflow water quality. This study have tried to investigate the effect of selective withdrawal on venting of TURBID DENSITY CURRENT through reservoir’s outlet. For this purpose four gates have been established on a wall at the end of a flume at heights of 5, 15, 25 and 40 percent of ambient fluid depth. The Turbidity current input with concentrations of 5, 15 and 30 g/L were injected with a constant volume flow rate. The results showed that when the gate was placed at 5 percent of the fluid depth, the amount of output concentration was averagely 10 percent higher than the concentration of input turbidity current. Keeping the gates open for longer durations has increased the VENTING EFFICIENCY to 40 percent in different depths.

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APA: Copy

ZAYERI, M.R., GHOMESHI, M., SHAFAEI BAJESTAN, M., & FATHI, A.. (2016). EXPERIMENTAL INVESTIGATION ON THE EFFECTS OF SELECTIVE WITHDRAWAL GATE ON VENTING OF TURBID DENSITY CURRENT. IRAN-WATER RESOURCES RESEARCH, 12(3), 180-188. SID. https://sid.ir/paper/99934/en

Vancouver: Copy

ZAYERI M.R., GHOMESHI M., SHAFAEI BAJESTAN M., FATHI A.. EXPERIMENTAL INVESTIGATION ON THE EFFECTS OF SELECTIVE WITHDRAWAL GATE ON VENTING OF TURBID DENSITY CURRENT. IRAN-WATER RESOURCES RESEARCH[Internet]. 2016;12(3):180-188. Available from: https://sid.ir/paper/99934/en

IEEE: Copy

M.R. ZAYERI, M. GHOMESHI, M. SHAFAEI BAJESTAN, and A. FATHI, “EXPERIMENTAL INVESTIGATION ON THE EFFECTS OF SELECTIVE WITHDRAWAL GATE ON VENTING OF TURBID DENSITY CURRENT,” IRAN-WATER RESOURCES RESEARCH, vol. 12, no. 3, pp. 180–188, 2016, [Online]. Available: https://sid.ir/paper/99934/en

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