LABORATORY INVESTIGATION ON SEDIMENT PARTICLE SIZE AND INLET AND OUTLET ANGLES EFFECT ON TRAPPING EFFICIENCY IN INVERT TRAPS

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ARYANFAR ALI; SHAFAI BEJESTAN MAHMOOD; KHOSROJERDI AMIR; BABAZADEH HOSSEIN

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Journal: JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION Year:2013 | Volume:3 | Issue:1 Page(s): 1-17

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Title

LABORATORY INVESTIGATION ON SEDIMENT PARTICLE SIZE AND INLET AND OUTLET ANGLES EFFECT ON TRAPPING EFFICIENCY IN INVERT TRAPS

Author(s)

ARYANFAR ALI | SHAFAI BEJESTAN MAHMOOD | KHOSROJERDI AMIR | BABAZADEH HOSSEIN | Issue Writer Certificate

Keywords

PHYSICAL MODELQ2

SEDIMENT TRAPS BASINSQ2

TRAP EFFICIENCYQ2

Abstract

Invert traps are one of the most effective methods for separating and collecting sediments in open channels. In this research, some experiments were performed in a channel with 4 m long and 25 cm wide for 13 different invert trap configurations with different inlet and outlet angles. To determine the best trap geometry that has the most retention ratios, four types of plastic beads as a laboratory sediments with the same density but different size and apparent weight were tested in a constant time. Results showed that the inlet and outlet angles of the trap, has a considerable impact on the amount of deposited sediments. In the case of vertical walls of the entrance, whatever outlet wall of the trap has milder angle, trapping rate was larger the incoming angle of the trap was smooth and the outlet wall is vertical, although sediments could easily sinked in, but due to strong vortices formed downstream of the trap, much of these sediments re-suspended and directed away from the trap. Quantitative analysis of the results showed that from the 13 tested geometries, trap with inlet angle of 90° and 34° as an outlet angle, has the highest efficiency on trapping the sediments.

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APA: Copy

ARYANFAR, ALI, SHAFAI BEJESTAN, MAHMOOD, KHOSROJERDI, AMIR, & BABAZADEH, HOSSEIN. (2013). LABORATORY INVESTIGATION ON SEDIMENT PARTICLE SIZE AND INLET AND OUTLET ANGLES EFFECT ON TRAPPING EFFICIENCY IN INVERT TRAPS. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, 3(1), 1-17. SID. https://sid.ir/paper/232235/en

Vancouver: Copy

ARYANFAR ALI, SHAFAI BEJESTAN MAHMOOD, KHOSROJERDI AMIR, BABAZADEH HOSSEIN. LABORATORY INVESTIGATION ON SEDIMENT PARTICLE SIZE AND INLET AND OUTLET ANGLES EFFECT ON TRAPPING EFFICIENCY IN INVERT TRAPS. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION[Internet]. 2013;3(1):1-17. Available from: https://sid.ir/paper/232235/en

IEEE: Copy

ALI ARYANFAR, MAHMOOD SHAFAI BEJESTAN, AMIR KHOSROJERDI, and HOSSEIN BABAZADEH, “LABORATORY INVESTIGATION ON SEDIMENT PARTICLE SIZE AND INLET AND OUTLET ANGLES EFFECT ON TRAPPING EFFICIENCY IN INVERT TRAPS,” JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, vol. 3, no. 1, pp. 1–17, 2013, [Online]. Available: https://sid.ir/paper/232235/en

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