Numerical Evaluation of Submerged Vanes Application in Sedimentation and Erosion Potential of Open-Channel Junctions Flow

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MOHAMMADIUN S.; SALEHI NEYSHABOURI S.A.A.; PARHIZKAR H.; VAHABI H.

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Journal: AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR) Year:2018 | Volume:50 | Issue:3 Page(s): 567-578

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Title

Numerical Evaluation of Submerged Vanes Application in Sedimentation and Erosion Potential of Open-Channel Junctions Flow

Author(s)

MOHAMMADIUN S. | SALEHI NEYSHABOURI S.A.A. | PARHIZKAR H. | VAHABI H. | Issue Writer Certificate

Keywords

Open-Channel JunctionQ1

Submerged VaneQ3

Numerical SolutionQ2

SedimentationQ1

ErosionQ1

Abstract

Open-Channel Junctions have been widely used in different hydraulic and agricultural networks. Formations of a low pressure zone with recirculating flow at downstream edge of the junction (with high Sedimentation potential) accompanied by a high-velocity zone (with high Erosion potential) located at the opposite wall of junction are the most characteristic features of flow in junctions. Literature addressed a lot of numerical studies on evaluation of flow pattern in Open-Channel Junctions and elimination of aforementioned problems using geometrical modifications, application of lateral channel separating wall, implementation of oblique angles of lateral channel, and so on. Using Submerged Vane to reduce amount of Erosion as well as Sedimentation potential, has comprehensively been assessed in the present paper. First, the numerical model was validated by previous studies. Second, a large number of numerical models have been performed to evaluate the effects of mentioned solution in Open-Channel Junctions. Moreover, optimal ranges of different Submerged Vane’ s parameters have been introduced. The results showed a comprehensive reduction in Sedimentation and Erosion potential of Open-Channel Junctions. For example, 89% reduction in length of separation zone has been detected in one of the proposed solution. In addition, the best performance of these vanes was observed in discharge ratio of 0. 25. Moreover, applications of vane with height of more than 0. 5h (h represents the water depth) and/or angle of more than 40° are not suggested.

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APA: Copy

MOHAMMADIUN, S., SALEHI NEYSHABOURI, S.A.A., PARHIZKAR, H., & VAHABI, H.. (2018). Numerical Evaluation of Submerged Vanes Application in Sedimentation and Erosion Potential of Open-Channel Junctions Flow. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), 50(3 ), 567-578. SID. https://sid.ir/paper/165741/en

Vancouver: Copy

MOHAMMADIUN S., SALEHI NEYSHABOURI S.A.A., PARHIZKAR H., VAHABI H.. Numerical Evaluation of Submerged Vanes Application in Sedimentation and Erosion Potential of Open-Channel Junctions Flow. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR)[Internet]. 2018;50(3 ):567-578. Available from: https://sid.ir/paper/165741/en

IEEE: Copy

S. MOHAMMADIUN, S.A.A. SALEHI NEYSHABOURI, H. PARHIZKAR, and H. VAHABI, “Numerical Evaluation of Submerged Vanes Application in Sedimentation and Erosion Potential of Open-Channel Junctions Flow,” AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), vol. 50, no. 3 , pp. 567–578, 2018, [Online]. Available: https://sid.ir/paper/165741/en

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