近岸波、流作用下结构物附近海岸演变的数值模拟

张海文; 陶建华

近岸波、流作用下结构物附近海岸演变的数值模拟

天津大学力学系, 天津 300072

基金项目: 国家自然科学基金资助项目(编号:19772031);交通部项目(鉴定号:03－98)

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出版历程
- 收稿日期: 1997-12-25
- 修回日期: 1998-10-21

Numerical modelling of sand beach evolution around coastal structures under the action of nearshore wave and currents

Department of Mechanics, Tianjin University, Tianjin 300072

摘要

摘要: 针对与砂质海岸在波浪作用下的演变有关的波浪、近岸流及输沙问题进行了系统的研究,并对结构物附近海岸演变进行了数值模拟。考虑了波浪折射-绕射及波浪破碎的综合作用,在近岸流场的模拟中用沿水深积分形成的K方程模型确定涡粘系数。计算岸滩地形变化时,综合波浪、近岸流作用的底沙和悬沙输沙率,并考虑波浪对泥沙作用的影响。模型对防波堤和近岸沉船附近地形变化进行了模拟,效果良好。
- 波浪 /
- 近岸流 /
- 海岸演变
Abstract: The systematic study has been made on the problems of wave,nearshore currents,sediment transport related to the coastal evolution of sand beach under the action of wave.Based on the results,the numerical model of sand beach evolution around a coastal structure has been established.To predict the bed topography,the sediment transport rates of bedload and suspended load under the action of wave and nearshore current as well as the effects of wave on the sediment ave considered.The sand beach evolutions which caused respectively by a breakwater and a settled ship near the shore are simulated.
- Wave /
- nearshore current /
- beach evolution

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参考文献(15)

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