水利学报2017，Vol.48Issue(10)：1206-1219,14.DOI:10.13243/j.cnki.slxb.20160992
黄河内蒙古河段洪水演进与冲淤模拟研究
Numerical simulation research on the flood propagation and riverbed deformation in the Inner Mongolia reach of the Yellow River
摘要
Abstract
Research on the flood process in the Inner Mongolia reach of the Yellow River can provide the key support to the river regulation and water resource development in the upper reach of the river.The aim of this study was to investigate the response to the different scales of floods in the Inner Mongolia reach through a three-dimensional model,in which the simulation region is from Bayangaole gauging station to Toudaoguai gauging station.The simulation results show that currently the time of flood propagation from Bayangaole to Toudaoguai generally requires 7-9 days,behaving larger than that in the 1980s due to the persistent deposition.Thereinto,the flows primarily discharge through the main channel in the reach be tween Bayangaole gauging station and Sanhuhekou gauging station.Meanwhile,the extent of overbanking gradually intensifies downstream.With respect to the riverbed deformation,it is effective to control the relationship between the incoming water and sediment to restrain the shrinkage of the main channel;and surely that there exists a nonlinear relationship between channel scouring and incoming water-sediment conditon.Additionally,the process of curve cut-off in the local reach is simulated by keeping the continuous large floods at the upstream.It indicates that the behavior of curve cut off could improve the sediment conveying capacity,which can benefit the river training in this reach.关键词
黄河内蒙古河段/洪水过程/水沙数值模拟/裁弯取直Key words
Inner Mongolia reach of the Yellow River/flood process/numerical simulation/curve cut-off分类
建筑与水利引用本文复制引用
李肖男,张红武,钟德钰,王彦君..黄河内蒙古河段洪水演进与冲淤模拟研究[J].水利学报,2017,48(10):1206-1219,14.基金项目
国家重点研发计划(2016YFC0402500) （2016YFC0402500）
国家自然科学基金项目(51379102) （51379102）
