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当前位置: 首页 > 文章 > ECOMSED模式在渤海湾泥沙冲淤研究中的应用 海洋湖沼通报 2018 (6) 9-16
Position: Home > Articles > Application of ECOMSED Model in Sedimentation of Bohai Bay Transactions of Oceanology and Limnology 2018 (6) 9-16

ECOMSED模式在渤海湾泥沙冲淤研究中的应用

作  者：
王星驰;韩树宗;王欣
单  位：
中国海洋大学海洋与大气学院
关键词：
渤海湾;ECOMSED;泥沙冲淤
摘  要：
渤海是我国一个内海,面积约8.2万km2,平均水深约20m,沿岸有众多的海上建筑。本文利用ECOMSED模式,首先采用大小区嵌套的方式模拟渤海湾的三维潮汐潮流分布。其大区模拟结果显示,m1分潮振幅平均差值为0.59,迟角差值为-7.37,M2分潮振幅平均差值为0.65,迟角差值为18.36,与实测结果对比良好。小区模拟结果显示研究区域主要以往复流为主,在涨急落急时刻沿岸区域的流速较大,并利用27小时的连续实测潮流资料对计算结果进行验证,其结果表明计算值与实测值吻合较好。随后利用ECOMSED模式的泥沙输运模块模拟小区泥沙冲淤情况,结果表明选定区域基本为淤积区域。最后讨论人工岛的建设和大风条件对模拟区域泥沙淤积的影响。结果表明人工岛的建立对该地区整体的泥沙运动影响不大,但由于地形改变,在一定程度上减缓了部分地区的淤积速度。在强风浪作用下,研究区域的淤积及冲刷区域同未添加波浪时基本一致,没有明显的骤淤区域。
译  名：
Application of ECOMSED Model in Sedimentation of Bohai Bay
作  者：
WANG Xingchi;HAN Shuzong;WANG Xin;Ocean University of China,College of Oceanic and Atmospheric Sciences;
关键词：
Bohai Bay;;ECOMSED;;Sediment scouring and silting
摘  要：
Bohai Sea is an inner sea in China with an area of about 82,000 square kilometers.Its average depth is about 20 meters with many coastal buildings.In this paper,we utilize ECOMSED model and nested method to simulate the three-dimensional tidal current distribution of Bohai Bay.The simulation results show that the average amplitude difference of m1 tide is 0.59,the angle difference is-7.37,the difference of M2 is 0.65,and the angle difference is 18.36,which is in good agreement with the measured result.The simulation results show that the study area is mainly reciprocating flow which is large in the coastal area.The calculated results are verified by the 27 hours measured tidal current data.The results show that the calculated values are in good agreement with the measured values.Then,using the ECOMSED model of sediment transport module to simulate the sediment scouring and silting,the results show that the selected area is basically siltation area.Finally,we discussed the effects of artificial island construction and wind conditions on the sedimentation of simulated areas and found that the establishment of artificial island has little effect on the sediment movement in the whole area.The rate of siltation in some areas has been slowed down due to the changes of terrain.Under the action of strong wind and waves,the sedimentation and erosion areas in the study area are basically the same as those without adding waves,and there is no obvious siltation area.

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