Numerical modelling of nearshore waves, currents, and sediment transport: Validation with laboratory data
Författare
Summary, in English
A numerical model of nearshore waves, currents and sediment transport was developed. The wave conditions were calculated by the Modified-EBED model and the surface roller was modeled following the approach of Daily and Brown (1995) with an enhancement of the energy flux term in the alongshore direction. Nearshore currents and wave setup were determined by the depth-averaged momentum equations together with the continuity equation. Sediment transport rates in the offshore and surf zone were modeled based on the formulas of Camenen and Larson (2005) and the advection diffusion equation, whereas the swash zone transport rates were obtained by the formulas of Larson and Wamsley (2007).The model was validated based on the high-quality data from the Large Scale Sediment Transport Facility (LSTF) at the Coastal and Hydraulics Laboratory, in Vicksburg, U.S. Good agreement between the computations and measurements was obtained regarding the significant wave height, longshore current, and sediment transport. The present model will form the basis for predicting the bathymetric evolution in the nearshore due to waves and currents.
Avdelning/ar
Publiceringsår
2010
Språk
Engelska
Sidor
135-137
Publikation/Tidskrift/Serie
Environmental Hydraulics: Theoretical, Experimental and Computational Solutions
Dokumenttyp
Konferensbidrag
Förlag
Taylor & Francis
Ämne
- Water Engineering
Nyckelord
- mathematical modeling
- random waves
- surface roller
- nearshore
- currents
- swash zone
- sediment transport
Conference name
International Workshop on Environmental Hydraulics
Conference date
2009-10-29 - 2009-10-30
Conference place
Valencia, Spain
Status
Published
ISBN/ISSN/Övrigt
- ISBN: 9780415566971