水科学进展2017，Vol.28Issue(2)：223-230,8.DOI:10.14042/j.cnki.32.1309.2017.02.007
岸滩侧蚀对航道条件影响的三维数值模拟 ——以长江中游太平口水道为例
3-D numerical simulation of the influences of bank erosion processes on navigation conditions:case study of the Taipingkou Waterway on the middle Yangtze River
摘要
Abstract
Riverbank erosion occurs frequently on the middle Yangtze River, which may result in the instability of the channel navigation. A new riverbank erosion model for the cohesive material was developed by considering the effects of adjacent cohesion. On the basis of 3-D flow and sediment transport model and the mechanisms of riverbank erosion, a 3-D morphological model for the Taipingkou Waterway on the middle Yangtze River was developed by using the a-daptive grid system. The 3-D model was calibrated by the observed data, and the simulated results agreed with the measured data. The influences of riverbank erosion processes on the navigation conditions were simulated by the nu-merical model. The developed model is able to calculate the complex morphological changes due to bank erosion. Bed degradation and bank erosion are enhanced with less sediment load input. Simulated results indicated that the river-bank stability of Lalinzhou is critical for the stability of navigation conditions on the Taipingkou Waterway.关键词
岸滩侧蚀/航道/三维数值模拟/长江中游Key words
bank erosion processes/navigation conditions/3-D numerical simulation/the middle Yangtze River分类
建筑与水利引用本文复制引用
假冬冬,夏海峰,陈长英,张幸农..岸滩侧蚀对航道条件影响的三维数值模拟 ——以长江中游太平口水道为例[J].水科学进展,2017,28(2):223-230,8.基金项目
国家自然科学基金资助项目(51579151 （）
51679147)? The study is financially supported by the National Natural Science Foundation of China (No. 51579151 （）
No. 51679147) . （）
