Laboratory and numerical investigation of the 2-array submerged vanes in meandering open channel

Bestami TAŞAR; Fatih ÜNEŞ; Ercan GEMİCİ; Bestami TAŞAR; Fatih ÜNEŞ; Ercan GEMİCİ

doi:10.3934/mbe.2023153

Mathematical Biosciences and Engineering

2023, Volume 20, Issue 2: 3261-3281. doi: 10.3934/mbe.2023153

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Research article Special Issues

Laboratory and numerical investigation of the 2-array submerged vanes in meandering open channel

1.
Department of Civil Engineering, Iskenderun Technical University, Turkey
2.
Department of Civil Engineering, Bartın University, Turkey

Academic Editor: Sungwon Kim

Received: 27 September 2022 Revised: 18 November 2022 Accepted: 21 November 2022 Published: 02 December 2022

In the case of flooding in rivers, river regulation structures are important since scours occur on the outer meander due to high flow velocities. In this study, 2-array submerged vane structures were investigated which is a new method in the meandering part of open channels, both laboratory and numerically with an open channel flow discharge of 20 L/s. Open channel flow experiments were carried out by using a submerged vane and without a vane. The flow velocity results of the computational fluid dynamics (CFD) models were compared to the experimental results and the results were found compatible. The flow velocities were investigated along with depth using the CFD and found that the maximum velocity was reduced by 22–27% along the depth. In the outer meander, the 2-array submerged vane with a 6-vane structure was found to affect the flow velocity by 26–29% in the region behind the vane.
- submerged vane,
- meander,
- experiment,
- computational fluid dynamics,
- open channel flow
Citation: Bestami TAŞAR, Fatih ÜNEŞ, Ercan GEMİCİ. Laboratory and numerical investigation of the 2-array submerged vanes in meandering open channel[J]. Mathematical Biosciences and Engineering, 2023, 20(2): 3261-3281. doi: 10.3934/mbe.2023153

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Abstract

In the case of flooding in rivers, river regulation structures are important since scours occur on the outer meander due to high flow velocities. In this study, 2-array submerged vane structures were investigated which is a new method in the meandering part of open channels, both laboratory and numerically with an open channel flow discharge of 20 L/s. Open channel flow experiments were carried out by using a submerged vane and without a vane. The flow velocity results of the computational fluid dynamics (CFD) models were compared to the experimental results and the results were found compatible. The flow velocities were investigated along with depth using the CFD and found that the maximum velocity was reduced by 22–27% along the depth. In the outer meander, the 2-array submerged vane with a 6-vane structure was found to affect the flow velocity by 26–29% in the region behind the vane.

References

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