摘要
在复杂群岛海域海浪模拟中,发展一种综合利用水深数据和高分辨率海岸线数据优化计算网格和在海浪数值计算中引入次网格地形效应的方法,充分描述多岛屿复杂地形分布对海浪模拟的影响。通过理想试验和实际应用表明:采用该方法后,在计算网格分辨率水平上,充分考虑了海岸和多岛屿地形对海浪传播的作用和多岛屿的次网格效应,数值计算结果有明显改善。
In order to describe complex multi-island terrain and coastlines adequately in modelling ocean wave, an algorithm making use of high-resolution bathymetry and coastline data to optimize the design of wave computation grid and taking sub-grid terrain effect into account is developed in archipelago. It is validated in idealized numerical experiments and practical application in Ryukyu area that by considering the impact of complex coastline and multi-island on the wave propagation and sub-grid effect of the multi-island effect, the computation grid resolution was adequately improved obviously.
出处
《海洋技术》
北大核心
2009年第3期73-78,共6页
Ocean Technology
关键词
海浪
多岛屿地形
次网格
数值模拟
ocean wave
multi-island
sub-grid
numerical modeling
