Ported wall extension hydraulics

Fei-dong Zheng; Ping-yi Wang; Jian-feng An; Yun Li

doi:10.1016/j.wse.2021.03.002

Volume 14 Issue 1

Aug. 2021

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Article Navigation > Water Science and Engineering > 2021 > 14(1): 65-71

Fei-dong Zheng, Ping-yi Wang, Jian-feng An, Yun Li. 2021: Ported wall extension hydraulics. Water Science and Engineering, 14(1): 65-71. doi: 10.1016/j.wse.2021.03.002

Citation:

Fei-dong Zheng, Ping-yi Wang, Jian-feng An, Yun Li. 2021: Ported wall extension hydraulics. Water Science and Engineering, 14(1): 65-71. doi: 10.1016/j.wse.2021.03.002

Fei-dong Zheng, Ping-yi Wang, Jian-feng An, Yun Li. 2021: Ported wall extension hydraulics. Water Science and Engineering, 14(1): 65-71. doi: 10.1016/j.wse.2021.03.002

Citation:

Fei-dong Zheng, Ping-yi Wang, Jian-feng An, Yun Li. 2021: Ported wall extension hydraulics. Water Science and Engineering, 14(1): 65-71. doi: 10.1016/j.wse.2021.03.002

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Ported wall extension hydraulics

doi: 10.1016/j.wse.2021.03.002

Fei-dong Zheng^{a, b},
Ping-yi Wang^{a, b},
Jian-feng An^c,
Yun Li^{c
,
,}

a.
College of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing 400074, China
b.
National Engineering Technology Research Center for Inland Waterway Regulation, Chongqing 400074, China
c.
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing 210029, China

Funds:

the National Key Research and Development Program of China 2018YFB1600403

the Natural Science Foundation of Chongqing, China cstc2020jcyj-bshX0043

More Information

Corresponding author: E-mail address: yli@nhri.cn (Yun Li)
Received Date: 2020-05-05
Accepted Date: 2021-01-23

Available Online: 2021-03-15

Abstract

Abstract

Ported wall extensions are important hydraulic structures used to reduce crosscurrents in upper approaches to locks. The effect of such extensions located upstream of a solid guard wall on flow characteristics depends on many factors, including geometric and hydraulic parameters. In this study, the hydraulic performance of ported wall extensions was experimentally investigated in terms of the permeability coefficient, expanding angle, extension length, and flow depth. The results demonstrate that the dimensionless maximum transverse velocity is closely related to the permeability coefficient, expanding angle, and flow depth. By contrast, the dimensionless eddy length mainly depends on the permeability coefficient, expanding angle, and extension length. Furthermore, the optimum permeability coefficient increases with the expanding angle or flow depth, and it is approximately constant for different extension lengths. These results have the potential to provide direct guidance for the design of effective ported wall extensions in upper approaches to locks.
- Ported wall extension,
- Permeability coefficient,
- Transverse velocity,
- Eddy length,
- Navigation safety

Peer review under responsibility of Hohai University.

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References(27)

References

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