长江口附近海域台风浪的数值模拟——以鹿沙台风和森拉克台风为例

胡克林; 丁平兴; 朱首贤; 孔亚珍

长江口附近海域台风浪的数值模拟——以鹿沙台风和森拉克台风为例

1.
华东师范大学, 河口海岸国家重点实验室, 上海, 200062
2.
华东师范大学, 河口海岸国家重点实验室, 上海, 200062;解放军理工大学, 气象学院, 江苏, 南京, 211101

基金项目: 国家重点基础研究发展规划项目(2002CB412403);总装预先研究项目(014071004);华东师范大学青年科研创新基金项目.

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出版历程
- 收稿日期: 2003-10-15
- 修回日期: 2004-06-23

Numerical simulation of typhoon waves around the waters of the Changjiang Estuary A case study of Typhoon Rusa and Typhoon Sinlaku

1.
Normal University, Shanghai 200062, China
2.
Normal University, Shanghai 200062, China;PLA University of Science Technology, Nanjing 211101, China

摘要

摘要: 利用SWAN波浪模型计算长江口附近海域的台风浪,鉴于长江河口岸界和地形复杂,拟采用曲线网格.为证实曲线网格下的SWAN模型对于复杂地形的有效性,首先选用美国特拉华大学波浪水池实验资料对SWAN模型进行检验,结果表明利用曲线网格能不过多增加计算量而提高关键区域的计算精度.以0215号鹿沙台风和0216号森拉克台风为例,将SWAN模型应用到长江口附近海域,进行台风浪的数值模拟.通过浮标测站实测资料验证,表明有效波高计算值与实测值符合良好.通过综合分析模型计算的波浪场,说明SWAN模型能合理地反映长江口附近海域台风浪的分布.
- SWAN波浪模型 /
- 长江口 /
- 台风浪 /
- 数值模拟
Abstract: The wave model SWAN is applied to the waters around the Changjiang Estuary for calculating typhoon waves.Curvilinear grids are adopted due to the complicacy of coastal shapes and topographies in the Changjiang Estuary.In order to approve that SWAN wave model in curvilinear grids is suitable for complicated topographies,experiment data of wave basin in the University of Delaware,U.S.,are used to test the behavior of the model.Results show that calculating precision can be improved in the model by using curvilinear grids,not adding much calculating quantity simultaneously.Typhoon waves around the waters of the Changjiang Estuary are numerically simulated under the weather of Typhoon Rusa and Typhoon Sinlaku.The verifications of field data at the buoy show that the calculated significant wave heights accord well with the observed ones.Distributions of typhoon waves in the Changjiang Estuary are synthetically analyzed.In conclusion,the SWAN wave model can preferably reflect the distributions of typhoon waves around the waters of the Changjiang Estuary.
- SWAN wave model /
- Changjiang Estuary /
- typhoon waves /
- numerical simulation

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文章访问数: 947
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