Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)

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Experimental Study on Flow Characteristics of Crisscross Bars in Straight Channel

Authors
Xi Wang1, *, Jinyou Lu1, Zhongwu Jin1, Zhaohui Chai1
1Changjiang River Scientific Research Institute, Wuhan, China
*Corresponding author. Email: wx7899@126.com
Corresponding Author
Xi Wang
Available Online 24 April 2024.
DOI
10.2991/978-94-6463-398-6_83How to use a DOI?
Keywords
Straight channel; Flume experiment; Flow velocity; turbulence intensity
Abstract

Flow characteristics are the driving force to the riverbed evolution in straight channel with crisscross bars. The variation laws of longitudinal velocity, transverse velocity and turbulent intensity were studied by flume experiment. The results show that: ① the longitudinal time-average velocity decreases along the channel direction and its transverse distribution presents the velocity at the edge of the bar is the largest, far from the bar takes the second, and on the bar is the smallest. The transverse time-average velocity is mainly the periodic change of flow direction. ② the longitudinal turbulence intensity tends to increase along the channel, which the increase amplitude decreases from upstream to downstream. The transverse turbulence intensity is mainly the largest in the middle of the bar, followed by the head and the tail.

Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)
Series
Atlantis Highlights in Engineering
Publication Date
24 April 2024
ISBN
978-94-6463-398-6
ISSN
2589-4943
DOI
10.2991/978-94-6463-398-6_83How to use a DOI?
Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Xi Wang
AU  - Jinyou Lu
AU  - Zhongwu Jin
AU  - Zhaohui Chai
PY  - 2024
DA  - 2024/04/24
TI  - Experimental Study on Flow Characteristics of Crisscross Bars in Straight Channel
BT  - Proceedings of the 2023 5th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2023)
PB  - Atlantis Press
SP  - 881
EP  - 889
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-398-6_83
DO  - 10.2991/978-94-6463-398-6_83
ID  - Wang2024
ER  -