云南高校图书馆联盟文献共享服务平台- 国家自然科学基金(50979066)

国家自然科学基金(50979066): 作品数：20被引量：63H指数：5; 导出分析报告; 相关作者：白玉川赵鹏陈有华韩其为张华庆更多>>; 相关机构：天津大学交通运输部天津水运工程科学研究院中国海洋石油总公司中船第九设计研究院工程有限公司更多>>; 相关期刊：《Transactions of Tianjin University》《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》《中国造船》《水资源与水工程学报》更多>>; 相关主题：RIVER船坞虹吸数值模拟河流更多>>; 相关领域：水利工程交通运输工程天文地球理学更多>>

Theoretical analyses on hydrodynamic instability in narrow deep river with variable curvature被引量：4: 《Applied Mathematics and Mechanics(English Edition)》2015年第9期1147-1168,共22页Haijue XU Yuchuan BAI; Project supported by the National Natural Science Foundation of China(Nos.51279124 and 50979066);the Science Fund for Creative Research Groups of the National Natural Science Foundation of China(No.51021004); Bending river is the most common river type in nature, and it is also a typical example for river evolution. The transform of the flow pattern can affect the development of the riverbed form. In return, the variation ...; 关键词：bending river hydrodynamic stability self-adaptability nonlinear riverdynamics

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

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

一种基于二维图像信息的三维地形测量(英文)被引量：1: 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2014年第1期68-82,共15页Xiao-long SONG Yu-chuan BAI Chao YING; Project supported by the State Key Laboratory of Hydraulic Engineering Simulation and Safety;the National Natural Science Foundation of China(Nos.51279124,51021004,and 50979066); 研究目的:利用数字图像测量技术对河流模型实验中的河床地形测量研究。创新要点:以高质量的图像径向畸变校正为基础,依据多幅图像间映射换算以及单幅图像灰度信息变换两方面的研究,来提取三维地形信息。研究方法:使用考虑残差的一阶误...; 关键词：河床地形测量数字图像测量技术径向畸变矫正投影变换灰度信息变换

Incipient motion of non-uniform coarse grain of bedload considering the impact of two-way exposure被引量：5: 《Science China(Technological Sciences)》2013年第8期1896-1905,共10页BAI YuChuan WANG Xin CAO YongGang; supported by the National Natural Science Foundation of China (Grant Nos. 51279124,51021004,50979066); The incipient motion of bedload is due to the interaction between the flow and sediment.It is stochastically correlated with the flow structure,the sediment gradation and the arrangement of grains on the bed surface.T...; 关键词：coarse grain of bedload exposure degree rolling incipient model moment equilibrium incipient velocity

船坞虹吸灌水廊道驼峰压强计算及最优半径的确定被引量：1: 《天津大学学报》2013年第3期211-216,共6页白玉川赵鹏马金辉戚晓明; 国家自然科学基金资助项目(50979066); 针对近年来广泛应用的虹吸灌水廊道中的驼峰负压和虹吸段半径.通过在柱坐标系下建立虹吸段水流运动方程,推导出了驼峰断面流速和压强的解析表达式,并用水力模型试验结果验证了压强表达式的准确性.在此基础上提出了廊道虹吸段最优半径的...; 关键词：船坞虹吸廊道驼峰压强最优半径

干船坞气控式卧倒门起浮过程流动分析: 《中国造船》2013年第1期146-154,共9页白玉川曹永港慎辰; 国家自然科学基金资助项目(50979066); 修造船坞中卧倒门起卧时的稳定性受水流动力的影响较大。基于RANS方程,利用RNG k-ε双方程紊流模型进行封闭,采用VOF方法跟踪自由水面,对干船坞气控式卧倒门的起浮过程进行了动网格模拟计算。综合考虑三种水位下坞门起卧时的流动特性,...; 关键词：干船坞卧倒门起浮过程水流结构数值模拟

Three-Dimensional Bursting Phenomena in Meander Channel被引量：2: 《Transactions of Tianjin University》2013年第1期17-24,共8页刘小谢白玉川; Supported by National Natural Science Foundation of China(No.50979066 and No.51279124);Foundation for Creative Research Groups of National Natural Science Foundation of China(No.51021004); Experiments were conducted in a U-shaped open-channel flume with the intention of investigating the bursting phenomena in the meander channel. The experimental results of the secondary flow fields and the Reynolds she...; 关键词：meander channel bursting phenomena turbulent characteristics three-dimension

Wave Attenuation Properties of Double Trapezoidal Submerged Breakwaters on Flat-Bed被引量：2: 《Transactions of Tianjin University》2012年第6期401-410,共10页曹永港蒋昌波白玉川; Supported by the General Program of National Natural Science Foundation of China(No.50979066 and No.50979008);Ph.D.Programs Foundation of Ministry of Education of China(No.20094316110002);Scientific Research Fund of Department of Education, Hunan Province(No.10A006); This paper investigates the wave attenuation properties of the double trapezoidal submerged breakwaters on the flat-bed by conducting physical experiments subjected to linear and cnoidal incident waves.The method of G...; 关键词：linear wave cnoidal wave double trapezoidal submerged breakwaters reflection coefficient transmis- sion coefficient attenuation coefficient

波浪作用下孤立砂球稳定性条件研究: 《海洋工程》2012年第3期159-163,共5页白玉川陈有华陈云飞; 国家自然科学基金创新研究群体科学基金资助项目(51021004);国家自然科学基金资助项目(50979066); 波浪作用下大块石稳定性条件的研究,不仅是泥沙运动力学急待发展的内容之一,也是抛石工程合理化设计的重要问题。在收集大量国内外有关研究资料的基础上,分析了在波浪作用下大块石的受力状况,得出当大块石处于失稳临界状态时,其所受失...; 关键词：波浪大块石稳定性条件 shields曲线

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