摘要
基于非结构化网格的海岸海洋模型(FVCOM),构建了辽河口鸳鸯岛海域水动力数值模型,并利用实测潮位、流速、流向数据对模型计算精度及可靠性进行了验证,对比结果表明模型计算值与实测值具有较高的吻合度。在验证模型可靠的基础上,进行了不同径流条件下鸳鸯岛水域的流场模拟计算,简要分析了不同径流情况下岛域附近水动力和流场的变化。模拟流场较好地展现了辽河口鸳鸯岛海域的复杂流况,研究结果为进一步探究河口湿地海域的盐度分布、泥沙冲淤及污染物输运提供参考。
Based on an unstructured grid,finite-volume coastal ocean model(FVCOM),a high-resolution numerical model is established to study the hydrodynamic characteristics of Yuanyang Island in Liao River Estuary.The calculation accuracy and reliability of the model are verified by the measured data such as tidal level,flow velocity,and flow direction.After comparison,the results show that the calculated values by the model are in good agreement with the measured values.On the basis of verifying the reliability of the model,this paper simulates the flow fields of Yuanyang Island under different runoff conditions and briefly analyzes the variations of the hydrodynamic and flow fields under different runoff conditions.The simulated flow fields reveal the complex flow conditions of Yuanyang Island in Liao River Estuary,which provides a reference for further study of salinity distribution,sediment scouring and silting,and pollutant transport in estuarine wetland.
作者
李晋
徐天平
张明亮
LI Jin;XU Tianping;ZHANG Mingliang(Panjin Yuanyanggou National Ocean Park Management Office,Panjin 124010,China;School of Ocean Science and Environment,Dalian Ocean University,Dalian 116023,China)
出处
《人民珠江》
2020年第1期54-62,88,共10页
Pearl River
基金
国家重点研发项目(2019YFC1407704)
国家自然科学基金(51879028)
辽宁省海洋与渔业厅科研项目(201725)
关键词
FVCOM
水动力
数值模拟
辽河口
FVCOM
hydrodynamic
numerical simulation
Liao River Estuary
