The Influence of Retention Basins on Tidal Dynamics in Estuaries

Title

The Influence of Retention Basins on Tidal Dynamics in Estuaries

 Author

Lugt, D.

Contributor

Schuttelaars, H.M. (mentor)

Faculty

Electrical Engineering, Mathematics and Computer Science

 Department

Applied Mathematical Analysis

 Date

2012-08-21

 Abstract

The Ems estuary suffers from high concentrations of suspended sediment, which is harmful for the life in the river. Sediment import occurs because of tidal asymmetry, a difference between the velocity of the current during high tide and low tide. The use of retention basins are a possible measure to reduce the tidal asymmetry. An analytic model, using partial differential equations derived from the Shallow Water equations and Navier-Stokes equations, was used to investigate the influence of retention basins on the tidal dynamics and sediment transport in estuaries in general and the Ems estuary specifically. For these investigations, this analytic model is useful because system conditions can easily be changed. Results show that the locations of retention basins are of great importance for their performance. In the Ems estuary the location minimizing the sediment import is at the end of the estuary, near the weir. Enlarging the retention basin is better than placing a second basin at a different location in the estuary.

 Subject

tidal dynamics
estuaries
Navier-Stokes
Shallow Water equations
retention basins
sediment

 To reference this document use:

http://resolver.tudelft.nl/uuid:68c8e36e-5d0a-4ed1-ba01-283bf73d95d2

 Embargo date

2015-03-01

 Part of collection

Student theses

 Document type

bachelor thesis

 Rights

(c) 2012 Lugt, D.
Files
PDF BSc_Thesis_Dorien_Lugt.pdf 1.69 MB
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