COASTAL BARRIER BREACHING: COMPARISON OF PHYSICAL AND NUMERICAL MODELS
Författare
Summary, in English
Two movable-bed physical model experiments of breach growth in a sandy barrier were conducted in a 3.3-m wide, 64-m long flume with a wave generator capable of generating 0.5 m waves. Breaching was initiated both without waves (Case BR1) and with waves (Case BR2) in separate tests by maintaining a head across the barrier. Breach channel deepening was controlled by the head difference across the barrier. Breach widening was found to occur primarily through episodic avalanching. The avalanched material was transported by the rapid flow both along the breach channel and transverse to the flow. In the presence of waves, breach widening was accelerated and dominated by swash processes. The numerical model of Kraus and Hayashi (2005) was assessed through comparison to measurements. The analysis furthered understanding of breach processes and identified several enhancements to improve predictive capability of the numerical model.
Avdelning/ar
Publiceringsår
2006
Språk
Engelska
Sidor
2818-2830
Publikation/Tidskrift/Serie
[Host publication title missing]
Dokumenttyp
Konferensbidrag
Ämne
- Water Engineering
Conference name
International Coastal on Engineering Conference, 2006
Conference date
2006-09-03 - 2006-09-08
Conference place
San Diego, California, United States
Status
Published