Tidal bore research: field works, physical modeling, CFD & more

Chanson, Hubert (2013). Tidal bore research: field works, physical modeling, CFD & more. In: Wang Zhaoyin, Joseph Hun-wei Lee, Gao Jizhang and Cao Shuyou, Proceedings of the 35th IAHR World Congress. 35th IAHR World Congress, Chengdu, China, (1-11). 8-13 September, 2013.

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Name Description MIMEType Size Downloads
Author Chanson, Hubert
Title of paper Tidal bore research: field works, physical modeling, CFD & more
Conference name 35th IAHR World Congress
Conference location Chengdu, China
Conference dates 8-13 September, 2013
Proceedings title Proceedings of the 35th IAHR World Congress
Place of Publication Beijing, China
Publisher Tsinghua University Press
Publication Year 2013
Sub-type Fully published paper
ISBN 9787302335443
Editor Wang Zhaoyin
Joseph Hun-wei Lee
Gao Jizhang
Cao Shuyou
Start page 1
End page 11
Total pages 11
Collection year 2014
Language eng
Formatted Abstract/Summary
A tidal bore is a series of waves propagating upstream as the tidal flow turns to rising in a river mouth during the early flood tide. The application of continuity and momentum principles gives a complete solution of the ratio of the conjugate cross-section areas as a function of the upstream Froude number Fr1 = (U+V1)/(g×A1/B1)1/2. Theoretical considerations are developed in terms of the effects of flow resistance and bed slope. Physically the tidal bore propagation induces a massive mixing of the natural system. Prototype observations highlighted that the tidal bore passage is associated with large fluctuations in water depth and instantaneous velocity components. Both experimental and numerical studies indicated the production of large coherent structures advected behind the tidal bore. The presence of such large-scale coherent structures indicated that a great amount of sediment materials could be placed into suspension and transported by the flood tide flow in a natural system. Future research into tidal bores should combine computational calculations combined with ad-hoc laboratory measurements, and it must be complemented by detailed field measurements in natural systems.
Keyword Tidal bores
Theoretical analysis
Physical modelling
Laboratory experiments
Field measurements
Computational fluid dynamics
Numerical modeling
Environmental impact
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Invited presentation. Paper A12210.

Document type: Conference Paper
Collections: School of Civil Engineering Publications
Official 2014 Collection
 
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Created: Mon, 09 Sep 2013, 08:38:30 EST by Hubert Chanson on behalf of School of Civil Engineering