A model for breach growth in a sand-dike and its prediction for the Zwin 94 experiment

Title

A model for breach growth in a sand-dike and its prediction for the Zwin 94 experiment

 Author

Visser, P.J.

Faculty

Civil Engineering and Geosciences

 Department

Hydraulic Engineering

 Date

1994-10-01

 Abstract

A mathematical model for breach growth in sand-dikes and dunes is described. The model is based on the five-step breach erosion process as observed in several laboratory experiments and the Zwin 89 field experiment. A simplified Galappatti (1983) pick up mechanism for sand from the bed is combined with Bagnold's (1963) modified (Visser, 1988) energetics-based sand transport conception to describe the breach erosion. The test of the model to the data of the Zwin 89 experiment shows good agreement. Finally, a prediction for the growth of the breach width in the Zwin 94 experiment is given.

 Subject

breach growth
sand dikes
dunes
breach erosion
Zwin
energetics-based sand transport

 To reference this document use:

http://resolver.tudelft.nl/uuid:069fc93e-8b65-49cd-8d34-a15f89eb1fad

 Publisher

TU Delft, Department of Hydraulic Engineering

 Source

Report no. 12-94

 Part of collection

Institutional Repository

 Document type

report

 Rights

(c) 1994 TU Delft, Department of Hydraulic Engineering
Files
PDF Visser1994.pdf 5.32 MB
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