| 张庆河，聂扬，陈泽礽，张金凤，杨光耀，季则舟，赵张益，严冰，纪超.粉沙质海岸航道骤淤数学模拟与淤积机理研究——以黄骅港为例[J].海洋工程,2025,(5):1~14 |
| 粉沙质海岸航道骤淤数学模拟与淤积机理研究——以黄骅港为例 |
| Mathematical simulation and mechanism analysis of sudden siltation in silty coastal channels: a case study of Huanghua Port |
| 投稿时间：2024-08-09 修订日期：2024-09-23 |
| DOI：10.16483/j.issn.1005-9865.2025.05.001 |
| 中文关键词: 层化效应 三维悬沙模型 波流耦合 粉沙质海岸 航道骤淤 |
| 英文关键词:stratification effects three-dimensional suspended sediment model wave-current coupling silty coast sudden channel siltation |
| 基金项目:国家自然科学基金联合基金重点资助项目（U1906231） |
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| 中文摘要: |
| 在极端天气条件下，粉沙质海岸内的航道极易发生骤淤灾害，对航运安全造成威胁。基于水动力模型FVCOM与波浪模型SWAN，并合理考虑粉沙质泥沙在强浪作用下的层化效应，构建了能够准确描述粉沙质海岸泥沙运动规律的三维水动力-波浪-泥沙-地形演变实时耦合模型。数学模型通过波流共同作用下的粉沙悬沙试验验证，模拟结果与实测垂向悬沙分布基本吻合。以2003年10月渤海特大温带风暴潮期间黄骅港外航道的骤淤过程为例，基于所建模型的模拟结果与航道实测淤积分布有较好的一致性。结果表明，在强浪作用下形成近底高含沙量并在复杂近岸水流作用下的运移是航道骤淤的主要原因。 |
| 英文摘要: |
| During extreme weather conditions, navigation channels along silty coasts are highly susceptible to sudden siltation, posing a significant threat to navigational safety. A three-dimensional real-time coupled hydrodynamic-wave-sediment-topography evolution model was developed by integrating the hydrodynamic model FVCOM and the wave model SWAN. This model accurately simulates sediment transport dynamics in silty coasts, considering the stratification effects of silt under strong wave action. The model was validated through suspended silt experiments under combined wave-current conditions, showing good agreement with observed vertical distributions of suspended sediment. Using the sudden siltation event in the outer channel of Huanghua Port during the significant temperate storm surge in October 2003 as a case study, the simulation results of the proposed model aligned well with observed siltation patterns. The results indicates that the formation of high near-bottom sediment concentrations due to strong wave action, coupled with complex nearshore currents, is the main cause of sudden channel siltation. |
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