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| Dubarbier, Benjamin; Castelle, Bruno; Marieu, Vincent; Michallet, Hervé; Grasso, Florent; Ruessink, Gerben. |
| The recent advances of numerical beach profile models allowed the simulation of on/offshore sandbar migrations on timescales of weeks to months with fair success. These models were systematically applied to natural, persistently evolving, beaches. In this contribution, we apply our model to small-scale laboratory experiments for which coarse and lightweight sediment is used to satisfy the laws of similitude in the flume. Such experiments can result in equilibrium beach profiles and provide detailed information on the respective role of undertow and wave nonlinearities on sediment transport and the resulting cross-shore sandbar migration. Here we first apply the coupled, wave-averaged, cross-shore waves-currents-bathymetric evolution model 1DBeach to an... |
| Tipo: Text |
Palavras-chave: Beach profile; Numerical model; Physical modelling; Equilibrium profile; Sandbar migration. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00180/29089/27503.pdf |
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| Gleizon, P; Dhieres, Gc; Renouard, D. |
| In order to examine the response of the surface flow to the regime in the Gibraltar Strait, the Alboran Sea is modelled in a large rotating channel mounted on the 14 m ''Coriolis'' rotating platform. The channel is divided into two basins connected by a strait. The currents are initialized and maintained constant in time by pumps. When flowing out of the strait, the Atlantic current forms an anticyclonic gyre in the Mediterranean basin. This gyre is related to the Western Alboran Sea Gyre and can develop until its diameter is as large as the width of the basin. Depending on the parameters, the flow exhibits different configurations, which we are able to characterize with the use of tracers (food dye, floats). A very consistent result is that the flow seems... |
| Tipo: Text |
Palavras-chave: Alboran Sea; Gyre; Jet; Strait; Physical modelling. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00096/20720/18357.pdf |
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