国家自然科学基金(50879019)

作品数：9被引量：49H指数：4
导出分析报告
相关作者：唐洪武何晔闫静田志军张向东更多>>
相关机构：河海大学国家工程研究中心南京信息工程大学南京水利科学研究院更多>>
相关期刊：《水利水电科技进展》《Science China(Physics,Mechanics & Astronomy)》《Journal of Hydrodynamics》《Water Science and Engineering》更多>>
相关主题：EDDYΣ-COORDINATE植物遗传算法糙率更多>>
相关领域：水利工程理学自动化与计算机技术天文地球更多>>
-
在结果中检索

检索结果分析

结果分析中...
共 条 记 录，以下是1-9
全选清除导出
参考文献引证文献引用追踪
视图：
排序：
Measurement of particle size based on digital imaging technique被引量：1
《Journal of Hydrodynamics》2013年第2期242-248,共7页陈红 唐洪武 刘云 王浩 刘贵平 
supported by the National Key Basic Research and Development of China(973Program,Grant No.2011CB403303);the China National Funds for Distinguished Young Scientists(Grant No.51125034);the National Natural Science Foundation of China(Grant Nos.50909036,50879019)
To improve the analysis methods for the measurement of the sediment particle sizes with a wide distribution and of irregular shapes, a sediment particle image measurement, an analysis system, and an extraction algorit...
关键词：particle size extraction algorithm of optimal threshold equivalent circle transformation 
THERMAL IMAGING STUDY OF SCALAR TRANSPORT IN SHALLOW WAKES
《Journal of Hydrodynamics》2012年第1期17-24,共8页CHONG K.J.Y UKTHUSYANTHAN N.I. LIANG Dong-fang TANG Hong-wu 
supported by the Non-profit Public Research Project of Ministry of Water Resources(Grant No.200901005);the National Natural Science Foundation of China(Grant No.50879019);the Research Fund for Doctoral Program of Higher Education(Grant No.200802940001)
The thermal imaging technique relies on the usage of infrared signal to detect the temperature field.Using temperature as a flow tracer,thermography is used to investigate the scalar transport in the shallow-water wak...
关键词：environmental hydraulics shallow wake turbulent mixing thermal imaging vortex street 
植物对明渠流速分布影响的试验研究被引量：18
《水利水运工程学报》2011年第4期138-142,共5页闫静 唐洪武 田志军 何晔 
国家自然科学基金资助项目(50879019);教育部博士点基金资助项目(200802940001);中央高校基本科研业务费专项资金资助(2010B02214);江苏省333科研项目(2017-B08038);河海大学自然科学基金资助项目(2008426411)
采用圆柱铝棒模拟刚性植物进行水槽试验,利用激光流速仪LDV对含非淹没、淹没植物明渠流场进行了测量,对模拟植物淹没度、密度对流速分布的影响进行了研究.分析表明,植物非淹没条件下的平均流速可以表示为流量、渠宽、水深和植物密度的函...
关键词：植物 明渠流速分布 非淹没 淹没 
Large eddy simulation of vertical turbulent jets under JONSWAP waves被引量：2
《Acta Mechanica Sinica》2011年第2期189-199,共11页Jun Lu Ling-Ling Wang Hong-Wu Tang Hui-Chao Dai 
supported by the National Natural Science Foundation of China (50679023, 50879019);Ph.D. Programs Foundation of Ministry of Education of China (20070294012);the National Science Fund for Distinguished Young Scholars (50925932);Outstanding Doctoral Dissertation Incubation Program of Hohai University (2010B18814);Qing Lan Project of Jiangsu Province, and 333 High-Level Talent Training Program of Jiangsu Province (2017-B08038)
The effect of random waves on vertical plane turbulent jets is studied numerically and the mechanism behind the interaction of the jet and waves is analyzed. The large eddy simulation method is used and the σ-coordin...
关键词：Large eddy simulation Dynamic coherent eddy model Σ-COORDINATE Turbulent jet JONSWAP wave 
Multi-approach analysis of maximum riverbed scour depth above subway tunnel
《Water Science and Engineering》2010年第4期431-442,共12页Jun CHEN Hong-wu TANG Zui-sen LI Wen-hong DAI 
supported by the National Natural Science Foundation of China (Grants No. 50909037,50879019,and 50879020);the Natural Science Foundation of Hohai University (Grant No. 2008426611),the Foundation for Introducing Talents of Hohai University (Grant No. 20080415);the National Science and Technology Pillar Program during the Eleventh Five-Year Plan Period (Grant No. 2008BAB29B08);the Fundamental Research Funds for the Central Universities (Grant No. 2010B01114)
When subway tunnels are routed underneath rivers, riverbed scour may expose the structure, with potentially severe consequences. Thus, it is important to identify the maximum scour depth to ensure that the designed bu...
关键词：high flow subway tunnel  scour depth scour model  numerical simulation 
A novel dynamic coherent eddy model and its application to LES of a turbulent jet with free surface被引量：6
《Science China(Physics,Mechanics & Astronomy)》2010年第9期1671-1680,共10页LU Jun,TANG HongWu,WANG LingLing & PENG Feng College of water conservancy of hydro-power engineering,Hohai University,Nanjing 210098,China 
supported by the National Natural Science Foundation of China (Grant Nos 50679023, 50879019);the PhD Programs Foundation of Ministry of Education of China (Grant No 20070294012);the National Science Fund for Distinguished Young Scholars (Grant No 50925932);the Outstanding Doctoral Dissertation Incubation Program of Hohai University (Grant No 2010B18814);Qing Lan Project of Jiangsu Province, "333 High-level Talent Training Program" of Jiangsu Province (Grant No 2017-B08038)
We has developed a novel dynamic coherent eddy model,in which the coherent structure-Q criterion introduced by Hunt et al(1988)-is taken into account in the subgrid-scale turbulent viscosity based on the eddy viscosit...
关键词：LES SUBGRID-SCALE modeling Σ-COORDINATE TURBULENT JET 
河道含淹没刚性植物二维涡量场特性被引量：8
《水动力学研究与进展（A辑）》2010年第1期8-15,共8页吴福生 姜树海 杨雪林 
国家自然科学基金项目(50879019)资助
含植物水流的涡量场构成了水生动物生境的物理基础,形成水、物质的循环以及能量的分配过程。本文通过玻璃水槽试验用二维标准PIV测量研究了含淹没刚性植物二维垂直涡量场的分布,得出流速梯度是形成含植物水流涡量的关键因素。植物顶层...
关键词：淹没刚性植物 流速梯度 涡量场 拟熵 能量耗散率 紊动扩散 
Three-dimensional hydrodynamic model of concrete tetrahedral frame revetments被引量：3
《Journal of Marine Science and Application》2009年第4期338-342,共5页高柱 李星 唐洪武 顾正华 
Supported by the Science Foundation of China Three Gorges University (No.0620070016);Opening Foundation of the Environmental Engineering Key Discipline from Zhejiang University of Technology (No.20080218);NSFC (No.50779014,No.50879019);Ph.D. Discipline Foundation of the Ministry of Education of China (No.200802940001);Jiangsu "333" Program for High Level Talent;"Six Talent Peak" Project Foundation of Jiangsu Province (No.2007006);"11th Five-year Plan" (2008BAB29B09)
Revetments of concrete frame tetrahedrons are being used more and more in river engineering in China. Due to their complex geometry, it is difficult to measure the velocity fields inside them using traditional measure...
关键词：concrete frame tetrahedrons numerical simulation drag LIFT 
基于遗传优化的河网数学模型糙率参数反演被引量：12
《水利水电科技进展》2009年第6期21-24,共4页辛小康 刘刚 张向东 肖洋 
国家自然科学基金(50879019);广东省交通厅重点科技项目(2008-19);南京信息工程大学科研基金(20070002)
将遗传算法智能优化模型与一维河网模型相耦合,提出一种河网糙率智能反演方法,自动完成参数的优化选择。与其他河网糙率优化方法相比,该方法具有理论简单、对实测数据依赖程度低和精度高的特点。将该方法获得的优化糙率值代入到数学模型...
关键词：河网模拟 遗传算法 参数反演 糙率 
全选清除导出
共1页<1>
检索报告 对象比较 聚类工具 使用帮助 返回顶部