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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Sediment management and morphodynamics : Boussinesq modelling of dike breaching due to overtopping
Boussinesq modelling of dike breaching due to overtopping
Author : PANAGIOTIS PRINOS & THEOFANIS V. KARAMBAS
ABSTRACT
In the present work a Boussinesq type model is adopted to simulate the breaching and erosion of a sand dike by
overtopping. The existing (breaking and non-breaking) wave propagation and bed morphology evolution model is
adopted to simulated wave and flow overtopping, by introducing appropriated simple boundary conditions both on the
upstream and downstream dike slope). By incorporating sediment transport formulae (for both bed load and suspended
load) the model can be applied to simulate bed morphology evolution and erosion process. The paper focuses on the
hydraulics of water flowing over a dike (subcritical flow from the reservoir to the dike crest, transcritical flow on the crest,
supercritical flow on the downstream dike, hydraulic jump formation), as well as on the erosion process. Model results
are compared with experimental data of Van Emelen et al (2013).
File Size : 398,831 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Sediment management and morphodynamics
Date Published : 14/08/2015
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