Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)

Numerical study on local loss at right angle diversion under the different cross section shapes

Authors
Jian Zou, Tao Li, Shaojun Qu, Ping Gao
Corresponding Author
Jian Zou
Available Online May 2018.
DOI
https://doi.org/10.2991/iceesd-18.2018.230How to use a DOI?
Keywords
different shapes of cross sections, 90° lateral diversion, local head loss, numerical simulation
Abstract

Lateral diversion from an open channel is a common flow regime and easily produces swirl which causes large head loss. The previous research mainly focused on the split flow about the fixed shapes of channel and small slopes. The paper investigated the local head loss at the diversion gate under three different cross sections (rectangle, trapezoid, and triangle) with Mike21 mathematical simulation method, and proposed the relationship between Froude number and local head loss coefficient under the different cross-sectional shape. The results show that the local head loss gradual increases at the diversion entrance, with the increase of the inlet discharge, under the same cross-section shape. At the same discharge, the local head loss of the triangular section is the largest, followed by the trapezoid, and the rectangle is the smallest. In the subcritical flow of open channel, the local head loss coefficient decreases with the increase of Froude number. The research results not only enrich the hydraulic discipline, but also provide technical support for similar projects.

Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)
Series
Advances in Engineering Research
Publication Date
May 2018
ISBN
978-94-6252-503-0
ISSN
2352-5401
DOI
https://doi.org/10.2991/iceesd-18.2018.230How to use a DOI?
Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Jian Zou
AU  - Tao Li
AU  - Shaojun Qu
AU  - Ping Gao
PY  - 2018/05
DA  - 2018/05
TI  - Numerical study on local loss at right angle diversion under the different cross section shapes
BT  - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)
PB  - Atlantis Press
SP  - 1244
EP  - 1250
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-18.2018.230
DO  - https://doi.org/10.2991/iceesd-18.2018.230
ID  - Zou2018/05
ER  -