长江澄通河段二维水动力数值模拟研究

长江澄通河段是《长江中下游干流河道治理规划报告》确定的14个重点治理河段之一，研究该河段水动力情况对该河段河流治理、规划提供技术支持，促进地区经济的可持续发展具有重要意义．基于水动力软件Delft3D，建立了长江澄通河段水动力模型，针对该河段的水流流场进行了数值模拟，并利用2010年澄通河段实测资料进行验证．利用模型流场模拟结果，发现该河段的涨潮流主槽和落潮流主槽．通过涨潮流主槽和落潮流主槽，预测该河段沙岛和暗沙区域位置及区域．结果表明，数值模拟计算结果与卖测结果基本吻合．能够辅好帅．反映该河船真宴谛扬惜况．

Two-dimensional Hydrodynamic Numerical Simulation of Chengtong Reach of Yangtze River

Chengtong reach of Yangtze River is one of 14 key management reaches of The Yangtze River Management and Planning Report, studying the hydrodynamic conditions can provide technical support for river management and planning, promoting the sustainable development of the regional economy. We established a hydrodynamic model by Delft 3D for Chengtong reach of the Yangtze River to simulate the flow field of this reach , and use measured data to verify model＇s calculation rcsults. Utilizing model flow field, we find the main channels of rising tide and ebb tide. Through rising tide main tanks and ebb tide main channels , we forecast the sand island and underwater sandy beach area. The simulation results show that the model＇s calculational results are consistent with the measured data, so as to reflect real flow field situation.