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- W2323571208 abstract "A new Boussinesq-type model, based on a two-layer approach, has recently been proposed by the authors (CHAZEL et al., 2009), allowing to simulate highly nonlinear and dispersive waves in the nearshore and coastal zone. In particular this model exhibits excellent linear properties up to kh=10 (where k is the wave-number and h the water depth) both for the vertical profile of orbital velocities and for the shoaling coefficient. After a brief summary of the mathematical derivation of the model, we present its numerical implementation for one-dimensional cases. The model is then applied to two experimental cases in order to study its range of applicability in the nonlinear regime for intermediate to large water depths. We first consider the classical experiments by DINGEMANS (1994) addressing the propagation of regular waves over a trapezoidal submerged bar. The results of the numerical model show its excellent performance in reproducing shoaling effects, strongly nonlinear interactions, as well as the generation and the release of higher order harmonics after the bar. Then we illustrate the capability of the model to propagate irregular non-breaking waves, by simulating one of the flume experiments by BECQ-GIRARD et al. (1999) with a more complex bottom profile also including an underwater bar. For this second case the model’s results are also in very good agreement with experimental measurements." @default.
- W2323571208 created "2016-06-24" @default.
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- W2323571208 date "2010-01-01" @default.
- W2323571208 modified "2023-09-23" @default.
- W2323571208 title "Validation numérique d'un modèle double-couche de type Boussinesq pour des ondes fortement non-linéaires et dispersives" @default.
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- W2323571208 doi "https://doi.org/10.5150/jngcgc.2010.004-b" @default.
- W2323571208 hasPublicationYear "2010" @default.
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