The aim of the present paper is to predict the changes of cross-shore beach profile under irregular waves based on a numerical model. Since laboratory experiments under random waves started to be performed, it is thus possible to compare the results of a numerical model with recent laboratory results performed using irregular waves. Three sets of laboratory data are used to check the validity of the present model. The experiments comprise random wave action on a variety of beach profiles and a large selection of wave input characteristics. The numerical model is based on the method of Shibayama and Winyu (1995). The model includes two submodels: (1) the Wave Model and (2) the Sediment Model. Two approaches have been considered in order to include the effect of wave irregularity. The first one is to use of the significant wave height and significant wave period which are calculated based on the available experimental laboratory data. The second one is to use the joint distribution of wave height and wave period based the time series analysis of the water surface elevation. The numerical results are compared with the results of the laboratory experiments. The results of different cases are compared and the potential and limitations of the proposed model and of the two approaches are discussed based on the analysis of the numerical and experimental laboratory data.
|出版ステータス||Published - 1997|
|イベント||Proceedings of the 1997 16th International Conference on Offshore Mechanics and Arctic Engineering. Part 1-B (of 6) - Yokohama, Jpn|
継続期間: 1997 4月 13 → 1997 4月 17
|Other||Proceedings of the 1997 16th International Conference on Offshore Mechanics and Arctic Engineering. Part 1-B (of 6)|
|Period||97/4/13 → 97/4/17|
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