EFFECT OF VORTEX BREAKER BLADES 45 DEGREE ON DISCHARGE COEFFICIENT OF MORNING GLORY SPILLWAY USING FLOW-3D

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NORUZI S.; AHADIYAN J.

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Paper Information

Journal: Journal of Irrigation Sciences and Engineering Year:2017 | Volume:40 | Issue:1 Page(s): 191-200

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Title

EFFECT OF VORTEX BREAKER BLADES 45 DEGREE ON DISCHARGE COEFFICIENT OF MORNING GLORY SPILLWAY USING FLOW-3D

Author(s)

NORUZI S. | AHADIYAN J. | Issue Writer Certificate

Keywords

MORNING GLORY SPILLWAYQ1

DISCHARGE COEFFICIENTQ1

VORTEX BREAKERQ1

NUMERICAL MODEL OF FLOW-3DQ1

Abstract

The DISCHARGE COEFFICIENT of MORNING GLORY SPILLWAY is decreased with eddies created by vortex at the inlet part of weir. However, a series of specific blades can reduce vortices which result in the spillway efficiency is increased. Hence, in this research numerical modeling of installed breaker blade on MORNING GLORY SPILLWAY was evaluated using Flow-3D model. To achieve these purposes, MORNING GLORY SPILLWAY was modeled without and with blades 3, 4 and 6 blades at 45 degree angle. To simulate the turbulence fluctuations, the modified k-e model (RNG k-e) was used and its results were compared to the experimental data. Results showed that by installing blades, the DISCHARGE COEFFICIENT increases up to 42 percent with 25 percent decreasing in the upstream water level. Moreover, among the three different arrangements of blades, the six-blade model was found to have more satisfactory results than other models. In comparison to control model, for H/D between 0 to 0.1 and 0.1 to 0.2 the DISCHARGE COEFFICIENT has been increased 40 and 57 percent for six-blade arrangement, respectively.

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APA: Copy

NORUZI, S., & AHADIYAN, J.. (2017). EFFECT OF VORTEX BREAKER BLADES 45 DEGREE ON DISCHARGE COEFFICIENT OF MORNING GLORY SPILLWAY USING FLOW-3D. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), 40(1 ), 191-200. SID. https://sid.ir/paper/217284/en

Vancouver: Copy

NORUZI S., AHADIYAN J.. EFFECT OF VORTEX BREAKER BLADES 45 DEGREE ON DISCHARGE COEFFICIENT OF MORNING GLORY SPILLWAY USING FLOW-3D. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE)[Internet]. 2017;40(1 ):191-200. Available from: https://sid.ir/paper/217284/en

IEEE: Copy

S. NORUZI, and J. AHADIYAN, “EFFECT OF VORTEX BREAKER BLADES 45 DEGREE ON DISCHARGE COEFFICIENT OF MORNING GLORY SPILLWAY USING FLOW-3D,” IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), vol. 40, no. 1 , pp. 191–200, 2017, [Online]. Available: https://sid.ir/paper/217284/en

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