| 不同结构形式潜堤上的随机波浪运动 |
| |
| 引用本文： | 李昌良,谢媛媛.不同结构形式潜堤上的随机波浪运动[J].海岸工程,2008,27(1):1-9. |
| |
| 作者姓名： | 李昌良 谢媛媛 |
| |
| 作者单位： | 中国海洋大学,工程学院,山东,青岛,266100 |
| |
| 摘 要： | 潜堤在海岸保护和促潍保淤中具有重要的意义。工程效益和经济投入受到潜堤结构形式和高度的影响。基于RANS方程和流体体积（VOF）方法的模型，计算不同潜堤上的波浪运动。潜堤形式包括矩形结构、梯形结构、半圆结构和槽形结构。模拟了不规则波越堤时波浪的破碎特征、破波类型以及波高的变化。通过分析流场和波高分布的变化，得到潜堤上波能散耗的规律，并且得出最优潜堤结构形式。讨论了相对堤顶高度、破碎点位置、相对堤顸宽度、波陡和潜堤结构形式等对波能耗散的影响。
|
| 关 键 词： | 潜堤 结构形式 波浪破碎 破波类型 透射系数 相对堤顶高度 |
Random Wave Motions Around Different Submerged Dykes |
| |
| LI Chang-liang,XIE Yuan-yuan.Random Wave Motions Around Different Submerged Dykes[J].Coastal Engineering,2008,27(1):1-9. |
| |
| Authors: | LI Chang-liang XIE Yuan-yuan |
| |
| Institution: | (College of Engineering, Ocean University of China, Qingdao 266100, China) |
| |
| Abstract: | The submerged dyke plays an important role in protecting bank and promoting beach accretion,and the project benefit and economic input of submerged dyke are af- fected by its structural form and height.In this paper,the RANS equations and volume of fluid(VOF)method are used to compute the wave motions around different sub- merged dykes,and the structural forms of submerged dyke include rectangular struc- ture,trapezoidal structure,semicircular structure and fluted structure.The characteris- tics of wave breaker around submerged dyke,wave breaker types and changes in wave height of random wave travelling over the submerged dyke are simulated.The wave en- ergy dissipation regularities at the submerged dyke are obtained by analyzing the changes in current field and wave height distribution,and the optimal structural form of sub- merged dyke is given.The effects of relative freeboard,breaking point position,relative dyke crest width,wave steepness and structural form of submerged dyke on wave ener- gy dissipation are also discussed. |
| |
| Keywords: | submerged dyke structural form wave breaking breaker type transmis-sion coefficient relative freeboard |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
