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2DV Rans-Vof modelling of depths and velocities of overtopping waves at overwashed dikes
Raosa, A.N.; Zanuttigh, B.; Lara, J.L.; Hughes, S. (2012). 2DV Rans-Vof modelling of depths and velocities of overtopping waves at overwashed dikes, in: Lynett, P. et al. (Ed.) Proceedings of the 33rd International Conference Coastal Engineering (ICCE), 1-6 July 2012, Santander, Spain. pp. 1-15
In: Lynett, P.; McKee Smith, J. (Ed.) (2012). Proceedings of the 33rd International Conference Coastal Engineering (ICCE), 1-6 July 2012, Santander, Spain. Coastal Engineering Proceedings, 33. American Society of Civil Engineers (ASCE): New York. ISBN 978-0-9896611-1-9. , more
In: Coastal Engineering Proceedings. American Society of Civil Engineers (ASCE): New York. ISSN 2156-1028, more

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Keywords
    Dikes; Experiments; Marine
Author keywords
    Overwashed dikes; Real wave overtopping; Numerical simulations; RANS-VOF model

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  • Innovative coastal technologies for safer European coasts in a changing climate, more

Authors  Top 
  • Raosa, A.N.
  • Zanuttigh, B.
  • Lara, J.L.
  • Hughes, S.

Abstract
    The purpose of this contribution is the representation of real wave overtopping over sea dikes with the Rans-Vof code (IH-2VOF) developed by the University of Cantabria. More specific objectives are: to identify the real capacity of the IH-2VOF model in the prediction of overflow and to determinate the accuracy of these predictions in order to provide designers with a generally applicable methodology to use the code. The model is validated against experimental tests conducted by Hughes at the U.S. Army Engineer Research and Development Center (ERDC). This analysis shows that the model tends to overestimate wave reflection and better results are obtained by introducing a porous layer around the structure as artificial way to reduce reflected wave energy.

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