The influence of basin geometry on equilibrium and stability of double inlet systems

Title

The influence of basin geometry on equilibrium and stability of double inlet systems

 Author

Brouwer, R.L.
Schuttelaars, H.M.
Roos, P.C.

Faculty

Civil Engineering and Geosciences

 Department

Hydraulic Engineering

 Date

2012-12-31

 Abstract

This study investigates the influence of basin geometry on the cross-sectional stability of double inlet systems. The inlet is in equilibrium when the amplitude of the inlet velocities equals the equilibrium velocity (~1 m s-1). This equilibrium is stable when after a perturbation the cross-sections of both inlets return to their original equilibrium value. The necessary amplitudes of the inlet velocities are obtained using an idealized 2DH hydrodynamic that calculates tidal elevation and flow in a geometry consisting of several adjacent rectangular compartments. Model results suggest that regardless of the inclusion or exclusion of bottom friction in the basin, stable equilibrium states exist. Qualitatively, the influence of basin geometry does not change the presence of stable equilibrium. Quantitatively, however, taking a basin surface area of 1200 km2, equilibrium values can differ up to a factor 2 depending on the geometry of the basin.

 To reference this document use:

http://resolver.tudelft.nl/uuid:30d638d0-e182-4b43-b255-95fbeda18244

 Publisher

University of Twente

 ISBN

978-90-365-3342-3

 Source

Jubilee conference proceedings, NCK-days 2012 : Crossing borders in coastal research, Enschede, Nederland, 13-16 maart 2012

 Part of collection

Institutional Repository

 Document type

conference paper

 Rights

(c) Delft University of Technology
Files
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