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    题名 作者 年代 出处 被引量
1河道调整研究现状及其对黄河下游游荡型河道调整的启示显示文摘系统梳理了河道调整研究现状,全面论述了与冲积河流调整相关的河相关系、不同边界下河道调整过程、冲积河流线性理论的研究现状及发展动态。新形势下黄河下游游荡型河道调整应重点研究水沙变化与有限控制边界对河道调整的耦合效应、河道断面自调整数理分析中断面形态假定、有限控制边界条件下游荡型河流主槽摆动幅度和频率等问题,这不仅有助于加深对游荡型河道河床演变规律的认识,而且对于河道调整趋势预测、河道整治等具有重要的理论意义。李军华 许琳娟 张向萍 江恩慧 2021水利水电科技进展2021,41,4:1
2Energy dissipation caused by boundary resistance in a typical reach of the lower Yellow River and the implications for riverbed stability显示文摘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 hydrodynamic 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 positive 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.XU Haijue LI Yan HUANG Zhe BAI Yuchuan ZHANG Jinliang 2022Journal of Geographical Sciences2022,32,11:0
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