波浪对泥沙作用的数值研究及在渤海区域的检验  

A numerical study of the wave effect on sediment transport and test in the Bohai Sea

作　　者：滕涌[1,2] 杨永增[1,2] 芦静[1,2] 崔廷伟 

机构地区：[1]国家海洋局第一海洋研究所,山东青岛266061 [2]国家海洋局第一海洋研究所海洋环境科学与数值模拟国家海洋局重点实验室,山东青岛266061

出　　处：《海洋学报》2012年第5期174-182,共9页

基　　金：科技部项目“渤海东海海浪精细化预报与信息服务系统开发”资助

摘　　要：针对渤海海域开展了波致底切应力对泥沙作用的数值估计。针对浅水条件,通过理想试验估算了波致底切应力对波流耦合底切应力的贡献。针对渤海大风过程,利用ECOMSED模式,通过波流耦合底边界层模型模拟了渤海区域的泥沙浓度,并利用遥感资料对表层泥沙浓度的数值模拟进行了检验。对比结果表明,考虑波浪作用的情况下,模拟结果在总体分布上得到明显的改善。在大风过程中波浪对0～20m近岸区域的泥沙再悬浮起主导作用。The wave effect on sediment transport is analyzed in the Bohai Sea area.First,a series of ideal experiments were carried out to investigate the characteristics of wave-current coupled bottom shear stress and the proportion of wave-induced bottom shear stress.Second,a numerical simulation of suspended sediment concentration was compared with the remote sensing data during a gale process in the Bohai Sea.The results indicate that the model output is improved much when the wave-induced bottom shear stress is considered.The wave plays a key role in the resuspension of sediment in the shallow water of 0-20 m depth during the gale weather.

关 键 词：悬浮泥沙 波流耦合底切应力 渤海 

分 类 号：P722.4[天文地球—海洋科学] P512.2