国家自然科学基金(51009105)

作品数：7被引量：50H指数：3
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相关作者：许栋白玉川乾爱国刘召平谭艳更多>>
相关机构：天津大学国核电力规划设计研究院中国水利水电科学研究院中交第一航务工程勘察设计院有限公司更多>>
相关期刊：《International Journal of Sediment Research》《Science China(Technological Sciences)》《泥沙研究》《Transactions of Tianjin University》更多>>
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On the mechanisms of the saltating motion of bedload
《International Journal of Sediment Research》2017年第1期53-59,共7页Youhua Chen Yuchuan Bai Dong Xu 
supported by the Longyuan Young Innovative Talents Personnel Support Project of Gansu Province;the Development Plan of Hundred Young Talents of Jinchang;National Natural Science Foundation for Innovative Research Groups of China(Grant No.51321065);the National Natural Science Foundation of China(Grant No.51279124 and 51009105);the Natural Science Foundation of Tianjin(Grant no.12JCQNJC05600)
Saltation of sediment particles is an important pattern of bedload transport. Based on force analysis for sediment particles, a Lagrangian model was proposed for the saltating motion of bedload in river flows, which w...
关键词：BedloadSaltationNumerical modelTransport rate 
Numerical investigation of particle saltation in the bed-load regime被引量：10
《Science China(Technological Sciences)》2014年第8期1500-1511,共12页JI ChunNing ANTE Munjiza ELDAD Avital XU Dong JOHN Williams 
supported by a Marie Curie International Incoming Fellowship within the seventh European Community Framework Programme(Grant No.PIIF-GA-2009-236457);the financial support of the Science Fund for Creative Research Groups of the National Natural Science Foundation of China(Grant No.51321065);Programme of Introducing Talents of Discipline to Universities(Grant No.B14012);National Natural Science Foundation of China(Grant Nos.50809047 and 51009105);Natural Science Foundation of Tianjin(Grant No.12JCQNJC02600)
This paper numerically investigates particle saltation in a turbulent channel flow having a rough bed consisting of 2–3 layers of densely packed spheres.In this study,we combined three the state-of-the-art technologi...
关键词：particle saltation bed-load regime hydrodynamic forces turbulent channel flow 
Incipient Velocity of Non-uniform Sediment in Sloping River Bends
《Transactions of Tianjin University》2014年第3期163-167,共5页吴岩 徐海珏 许栋 白玉川 
Supported by the Science Fund for Creative Research Groups of the National Natural Science Foundation of China(No.51021004);the National Natural Science Foundation of China(No.50979066 and No.51009105);the Natural Science Foundation of Tianjin(No.12JCQNJC05600)
A model for incipient movement of sediment in rolling pattern was established. In this model, the starting of sediment particles under low transport rate, the exposure degree of sediment, the lateral slope of water su...
关键词：sloping river bend non-uniform sediment exposure degree low transport rate of starting 
Theory and application of nonlinear river dynamics被引量：3
《International Journal of Sediment Research》2014年第3期285-303,共19页Yu-chuan BAI Zhao-yin WANG 
supported by the National Natural Science Foundation of China(Grant Nos.51279124,51021004,51009105)
A theoretical model for river evolution including riverbed formation and meandering pattern formation is presented in this paper.Based on nonlinear mathematic theory,the nonlinear river dynamic theory is set up for ri...
关键词：River Dynamic process Reservoir Nonlinear Long term evolution River dynamics 
A type of dynamic mechanism of river hydraulic geometry被引量：1
《Science China(Technological Sciences)》2014年第4期847-855,共9页BAI YuChuan JI ZiQing ZHANG MingJin 
supported by the National Natural Science Foundation of China(Grant Nos.51279124,50979066,51009105);the Natural Science Foundation of Tianjin(Grant No.12JCQNJC05600)
Large-sczde structure of river flow is the main driving force for bed erosion-deposition and bank delbrmation. The structure shapes and retains a corresponding hydraulic geometry form. Therefore, the most stable flow ...
关键词：meandering river STABILITY coherent disturbance river optimization 
蜿蜒河流演变动力过程及其研究进展被引量：9
《泥沙研究》2011年第4期73-80,共8页许栋 白玉川 谭艳 
国家自然科学基金项目(51009105);水沙科学与水灾害防治湖南省重点实验室开放基金项目(2011SS03)
蜿蜒河流在河床演变的同时,河道平面形态随时间变化而不断地摆动、迂回和迁移,形成蜿蜒河流演变动力过程;蜿蜒河流演变动力过程是一个涵盖水动力学、泥沙运动力学、沉积学、地貌学等多学科交叉的跨学科课题,其研究具有重要的科学意义和...
关键词：蜿蜒河流 动力过程 河弯演变 研究进展 
弯曲河道中水流运动的三维数值模拟被引量：27
《水利学报》2010年第12期1423-1431,共9页许栋 刘召平 乾爱国 白玉川 
国家重点基础研究发展计划资助项目(2007CB714101);国家自然科学基金资助项目(51009105)
基于雷诺方程和有限体积法建立了描述弯道水流运动的三维数学模型,用室内物理模型试验进行验证,结果表明,该模型能够较好地模拟弯道内水流流速分布以及湍流特征。随后用该模型模拟了若干典型平面形态和床面形态的弯道水流运动。模拟结...
关键词：弯曲河道 水流运动 三维数学模型 河湾形态 数值试验 
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