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典型文献
Energy dissipation caused by boundary resistance in a typical reach of the lower Yellow River and the implications for riverbed stability
文献摘要:
The energy dissipation of boundary resistance is presented in this paper based on the flow resistance.Additionally,the river morphology responses to the resistance energy dissipation are explored using the Gaocun-Taochengpu reach in the lower Yellow River as a prototype.Theoretical analysis,measured data analysis and a one-dimensional hydrody-namic model are synthetically used to calculate the energy dissipation rate and riverbed morphological change.The results show that the energy dissipation rate along the channel will increase in both the mean value and the fluctuation intensity with increasing discharge.However,the energy dissipation rate will first decrease and then increase as the flow section or width-depth ratio increases.In addition,the energy dissipation rate has a significant posi-tive correlation with the riverbed stability index.The results imply that the water and sediment transport efficiency of the river channel can be improved by optimizing the cross-sectional configuration to fulfil the minimum energy dissipation rate of the boundary resistance under stable riverbed conditions.
文献关键词:
作者姓名:
XU Haijue;Li Yan;HUANG Zhe;BAI Yuchuan;ZHANG Jinliang
作者机构:
State Key Lab.of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China;Institute for Sediment,River and Coast Engineering,Tianjin University,Tianjin 300072,China;Yellow River Engineering Consulting Co.,Ltd.,Zhengzhou 450003,China
引用格式:
[1]XU Haijue;Li Yan;HUANG Zhe;BAI Yuchuan;ZHANG Jinliang-.Energy dissipation caused by boundary resistance in a typical reach of the lower Yellow River and the implications for riverbed stability)[J].地理学报(英文版),2022(11):2311-2327
A类:
Gaocun,Taochengpu
B类:
Energy,dissipation,caused,by,boundary,resistance,typical,reach,lower,Yellow,River,implications,riverbed,stability,energy,presented,this,paper,flow,Additionally,morphology,responses,are,explored,using,prototype,Theoretical,analysis,measured,data,one,dimensional,hydrody,namic,model,synthetically,calculate,rate,morphological,change,results,show,that,along,channel,will,both,mean,value,fluctuation,intensity,increasing,discharge,However,first,decrease,then,width,depth,increases,In,addition,has,significant,posi,tive,correlation,imply,water,sediment,transport,efficiency,improved,optimizing,cross,sectional,configuration,fulfil,minimum,under,stable,conditions
AB值:
0.509808
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