Modélisation du transport littoral

作者: Catherine Villaret

DOI: 10.5150/JNGCGC.2004.028-V

关键词:

摘要: In coastal areas, the effect of waves on sand transport rates needs to be accounted for by an integrated modeling hydrodynamic forcing terms (waves, wave-induced and tidal currents) resulting rates. The hydro-informatic system Telemac is applied here two tests cases: 1) a straight coast line, where littoral induced incident wave, 2) macro-tidal beach located at East Dunkerque. We discuss general method sensitivity results bottom friction laws formulae. Mots-cles : Modelisation numerique, courant de maree, houle, solide. 1.Introduction En zone cotiere, la houle et les courants jouent des roles complementaires sur dynamique sedimentaire pour effet favoriser mise en suspension sediments qui sont ensuite transportes par moyens. La variation spatiale taux entraine phenomenes d’erosion ou d’accretion, avec consequences importantes gestion du littoral. Il est necessaire construire outils modelisation permettant predire precisement evolutions morphodynamiques resultent. Le calcul forcages hydrodynamiques necessite œuvre d’un code propagation modele courantologique afin calculer maree ainsi que houle. methodologie utilisee depend conditions rencontrees (houle dominante dominante), consiste enchainer plusieurs calculs, tenir compte interactions entre courants. Sont presentees ici deux applications premiere concerne le sous l’effet d’une oblique, long plage rectiligne uniforme, seconde, une macro-tidale, situee l’Est Apres presentation rapide codes methode couplage utilisee, nous discutons sensibilite resultats aux lois frottement formules transport.

参考文章(9)
M. S. Longuet-Higgins, The mechanics of the surf zone Theoretical and Applied Mechanics. pp. 213- 228 ,(1973) , 10.1007/978-3-642-65590-6_14
E.W. Bijker, Mechanics of Sediment Transport by the Combination of Waves and Current Design and Reliability of Coastal Structures, short course during the 23rd ICCE in Venice. ,(1992)
Richard Soulsby, Dynamics of marine sands ,(1997)
J.A. Battjes, J.P.F.M. Janssen, ENERGY LOSS AND SET-UP DUE TO BREAKING OF RANDOM WAVES Coastal Engineering Proceedings. ,vol. 1, pp. 32- 32 ,(1978) , 10.9753/ICCE.V16.32
Dirk Hermanus Swart, Offshore sediment transport and equilibrium beach profiles W.D. Meinema. ,(1974)
James A. Bailard, An energetics total load sediment transport model for a plane sloping beach Journal of Geophysical Research. ,vol. 86, pp. 10938- 10954 ,(1981) , 10.1029/JC086IC11P10938
Patricia L. Wiberg, Courtney K. Harris, Ripple geometry in wave‐dominated environments Journal of Geophysical Research. ,vol. 99, pp. 775- 789 ,(1994) , 10.1029/93JC02726
Akira Watanabe, Mohammad Dibajnia, SHEET FLOW UNDER NONLINEAR WAVES AND CURRENTS 23rd International Conference on Coastal Engineering. ,vol. 1, pp. 2015- 2028 ,(1993) , 10.9753/ICCE.V23.%P