Characteristics of Suspended Sediment Transport in the Surf Zone of Irregular Waves and their Reproduction by a Cross-Shore Beach Deformation Model
Characteristics of Suspended Sediment Transport in the Surf Zone of Irregular Waves and their Reproduction by a Cross-Shore Beach Deformation Model
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不规则波冲浪区悬浮泥沙输送特征及其跨岸海滩变形模型再现
DOI：
10.1061/9780784404119.174
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
T. Shimizu
中科院分区：
文献类型：
--
作者：
M. Dceno;T. Shimizu
利用CRIEPI的大、中型不规则波水槽，对破碎带的悬沙通量和跨岸海滩变形进行了试验研究。本文还利用一个新的实验系统研究了长波对悬沙输运的影响，该系统能正确再现由不规则波群所围成的亚重力波。在此基础上，建立了不规则波作用下近岸海滩变形的数学模型，并对不规则波作用下的海床上挑率和悬沙对流扩散进行了数值模拟。该数值模式能较好地再现波浪变形、悬浮物浓度、底流、泥沙通量和海滩地形变化。
Suspended sediment flux and cross-shore beach deformation in the breaker zone are elucidated experimentally with the CRIEPI's irregular wave flumes of large and middle sizes. Effects of long waves on suspended sediment transport are also investigated with a new experimental system for correct reproduction of infragravity waves bounded by irregular wave groups. Based on the experimental results, the pick up rate from sea bed and convection and diffusion of suspended sediment are modelled, and a new numerical model is developed for cross-shore beach deformation due to irregular waves. This numerical model can well reproduce wave deformation, suspended concentration, undertow, sediment flux and beach topography change.