水资源保护2011，Vol.27Issue(2)：1-5,12,6.DOI:10.3969/j.issn.1004-6933.2011.02.001
太湖湖流、波浪、沉积物的三维数值模拟
Three-dimensional numerical simulation of current,waves and sediment transport in Taihu Lake
摘要
Abstract
The Estuar Coastal Ocean Model incorporated with Sediment (ECOMSED) model was used to simulate the flow and wave field under a steady southeast wind of 6.5 m/s in Taihu Lake, and the suitability and reliability of the model was verified.Based on this, numerical simulation of sediment re-suspension was carried out with the joint action of waves and currents, and the distributions of shear stress and suspended matter concentration on the water-sediment interface were obtained.The results show that significant wave height was in the range of 9 to 29 cm, and the spatial distribution of significant wave height had a strong relationship with wind speed, wind direction, and water depth.Meanwhile, waves had a significant impact on shear stress, and the shear stress distribution determined the distribution of suspended matter concentration.Therefore, wind and topography are two important factors leading to changes of the concentration of suspended matter in Taihu Lake.The simulation results agreed with existing experimental results,proving that this model can reliably simulate sediment re-suspension.关键词
ECOMSED模式/湖流/波浪/沉积物/数值模拟/太湖Key words
ECOMSED model/ lake current/ wave/ sediment/ numerical simulation/ Taihu Lake分类
资源环境引用本文复制引用
汤露露,王鹏,姚琪..太湖湖流、波浪、沉积物的三维数值模拟[J].水资源保护,2011,27(2):1-5,12,6.基金项目
国家重点基础研究发展计划(2008CB418202) （2008CB418202）
国家水体污染控制与治理科技重大专项(2005ZX07101-001) （2005ZX07101-001）
河海大学自然科学基金(2004211) （2004211）
