Dispersion of fish eggs under undular and breaking tidal bores

Chanson, H. and Tan, K. K. (2011) Dispersion of fish eggs under undular and breaking tidal bores. Fluid Dynamics and Materials Processing, 7 4: 403-418. doi:10.3970/fdmp.2011.007.403

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Author Chanson, H.
Tan, K. K.
Title Dispersion of fish eggs under undular and breaking tidal bores
Journal name Fluid Dynamics and Materials Processing
ISSN 1555-256X
Publication date 2011
Sub-type Article (original research)
DOI 10.3970/fdmp.2011.007.403
Volume 7
Issue 4
Start page 403
End page 418
Total pages 16
Place of publication Forsyth, GA, U.S.A.
Publisher Tech Science Press
Collection year 2012
Language eng
Formatted abstract
A tidal bore is a wall of water propagating upstream as the tidal flow turns to rising into an estuary with a tidal range larger than 5 to 6 m and the bathymetry that amplifies the tidal wave. The bore front is a shock characterised by a singularity of the free-surface and pressure and velocity fields. This study aims to characterise the impact of tidal bores on the turbulent dispersion of fish eggs. Some physical modelling was performed based upon a Froude similitude and the tracking of plastic beads acting as fish egg proxies was conducted under controlled flow conditions with both undular and breaking tidal bores. The physical experiments highlighted some large-scale coherent structures generated beneath the bore front and advected behind. The vortical structures were responsible for some selective longitudinal dispersion of fish eggs depending upon the eggs' relative density.
Keyword Tidal bores
Turbulent dispersion
Fish egg dispersion
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Author prepress title: "Turbulent dispersion of fish eggs under tidal bores".

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2012 Collection
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Created: Wed, 21 Dec 2011, 15:03:23 EST by Hubert Chanson on behalf of School of Civil Engineering