Dune erosion and overwash in large-scale flume experiments

Tomasicchio, G. R. and D'Alessandro, F. and Fortes, C. J. E. M. and Ilic, Suzana and James, Michael and Sanchez-Arcilla, A. and Sancho, F. M. and Schüttrumpf, H. (2011) Dune erosion and overwash in large-scale flume experiments. In: The Proceedings of the Coastal Sediments 2011. World Scientific Publishing, pp. 796-809. ISBN 9789814355520

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The present paper gives a general overview of the large-scale physical model experiments performed at the LIM/UPC in Barcelona, within the EU-Hydralab III Integrated Infrastructure Initiative. The model tests have been carried out in a flume with a sandy dune exposed to a combination of water levels and wave conditions. Different regimes of wave attacks on the sandy beach/dune system have been investigated. In particular, the study provides a unique set of large-scale physical data concerning the wave-induced dune overwash. Measurements of hydrodynamics, sediment concentrations and beach-dune profile evolution have been carried out. Profile measurements have been used to calibrate and validate a numerical model (Kobayashi et al. 2007) to predict beach-dune profile modifications over the near-shore region. The numerical model is shown to be in agreement with the experimental data.

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11 Nov 2014 14:42
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17 Sep 2023 03:53