国家教育部博士点基金(20130141110016)

作品数：9被引量：47H指数：4
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相关作者：槐文信王伟杰王雯唐雪胡阳更多>>
相关机构：武汉大学更多>>
相关期刊：《Applied Mathematics and Mechanics(English Edition)》《Journal of Hydrodynamics》《华中科技大学学报（自然科学版）》更多>>
相关主题：VEGETATION植被明渠流动EFFECTDISPERSION更多>>
相关领域：水利工程理学农业科学环境科学与工程更多>>
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Prediction of velocity distribution in straight open-channel flow with partial vegetation by singular perturbation method被引量：2
《Applied Mathematics and Mechanics(English Edition)》2016年第10期1315-1324,共10页Wenxin HUAI Suwen SONG Jie HAN Yuhong ZENG 
Project supported by the National Natural Science Foundation of China(Nos.51439007 and11372232);the Specialized Research Fund for the Doctoral Program of Higher Education(No.20130141110016)
A numerical analysis model based on two-dimensional shallow water differential equations is presented for straight open-channel flow with partial vegetation across the channel. Both the drag force acting on vegetation...
关键词：depth-averaged velocity singular perturbation secondary flow 
柔性淹没植被对生态河道洪水波影响研究被引量：7
《华中科技大学学报（自然科学版）》2016年第4期111-115,共5页槐文信 唐雪 王伟杰 
国家自然科学基金资助项目(51439007;11172218;11372232);高等学校博士学科点专项科研基金资助项目(20130141110016)
为了研究生态河道中的植被对河道水流产生的阻力问题,分析了糙率与平均流速、水深、植被密度之间的关系,总结出柔性淹没植被情况下的糙率公式,并通过数值计算求解一维圣维南方程,从流量、水位、流速三个方面来分析柔性植被对洪水波传播...
关键词：明渠流动 柔性淹没植被 水流阻力 糙率 洪水波 
United friction resistance in open channel flows被引量：2
《Journal of Hydrodynamics》2015年第3期469-472,共4页李硕林 史浩然 薛万云 槐文信 
supported by the National Natural Science Foun-dation of China(Grant Nos.51479007,11172218 and 11372232);the Specialized Research Fund for the Doctoral Program of Higher Education(Grant No.20130141110016)
It is now over half a century since Keulegan conducted his open channel flow experiments. Over the past decades, many empirical formulae were proposed based on his results, however, there is still not a combined expre...
关键词：open channel flows frication factor united formula implicit model logarithmic matching method 
Effect of vegetation on flow structure and dispersion in strongly curved channels被引量：13
《Journal of Hydrodynamics》2015年第2期286-291,共6页李成光 薛万云 槐文信 
Project supported by the National Natural Science Foundation of China(Grant Nos.51479007,11172218 and 11372232);the Specialized Research Fund for the Doctoral Program of Higher Education(Grant No.20130141110016);the Fundamental Research Fund for the Central Universities(Grant No.2012206020204)
The effect of vegetation on the flow structure and the dispersion in a 180 o curved open channel is studied. The Micro ADV is used to measure the flow velocities both in the vegetation cases and the non-vegetation cas...
关键词：VEGETATION curved open channel flow velocity transverse dispersion coefficient longitudinal dispersion coefficient 
双层刚性植被明渠水流特性实验研究被引量：5
《华中科技大学学报（自然科学版）》2015年第1期85-90,共6页赵芳 槐文信 胡阳 王伟杰 
国家自然科学基金资助项目(51479007;11172218;11372232);高等学校博士学科点专项科研基金资助项目(20130141110016)
基于粒子图像测速(PIV)技术对双层刚性植被水流进行了水槽实验,分析了植被在不同流量、水深以及不同植被排布方式下对水流的影响,研究了双层刚性植被水流的纵向流速、垂向流速和紊动强度等水力特性.实验结果表明:当水深和流量相同时,线...
关键词：双层刚性植被 粒子图像测速(PIV) 流速分布 紊动强度 排布方式 
Analytical solution of velocity distribution for flow through submerged large deflection flexible vegetation被引量：2
《Applied Mathematics and Mechanics(English Edition)》2015年第1期107-120,共14页Wei-jie WANG Wen-xin HUAI Yu-hong ZENG Ji-fu ZHOU 
Project supported by the National Natural Science Foundation of China(Nos.11372232 and 51479007);the Specialized Research Fund for the Doctoral Program of Higher Education(No.20130141110016);the State Water Pollution Control and Management of Major Special Science and Technology(No.2012ZX07205-005-03)
An analytical solution for predicting the vertical distribution of streamwise mean velocity in an open channel flow with submerged flexible vegetation is proposed when large bending occurs. The flow regime is separate...
关键词：analytical velocity distribution linear drag force flexible vegetation largedeflection mixing length theory 
基于唯象模型的部分植被河道流动分析
《华中科技大学学报（自然科学版）》2014年第7期33-37,共5页罗婧 槐文信 
国家自然科学基金资助项目(11372232);高等学校博士学科点专项科研基金资助项目(20130141110016);国家水体污染控制与治理科技重大专项资助项目(2012ZX07205-005-03);西北旱区生态水利工程国家重点实验室培育基地开放研究基金资助项目(KFKT-4)
对局部有挺水植被明渠均匀流,采用分区模型,合理计入区间界面的表观切应力,建立动力平衡方程,推导出各区的断面平均纵向流速公式.基于唯象模型得出了植被区和非植被区交界面上的表观切应力,该应力是由界面上引起动量交换且占主导地位的...
关键词：明渠流动 植被 表观切应力 唯象模型 流速 
Numerical investigation of flow through vegetated multi-stage compound channel被引量：8
《Journal of Hydrodynamics》2014年第3期467-473,共7页王雯 槐文信 高猛 
supported by the National Natural Science Foundation of China(Grant No.11372232);the Specialized Research Fund for the Doctoral Program of Higher Education(GrantNo.20130141110016);the State Water Pollution Controland Management of Major Special Science and Technology(Grant No.2012ZX07205-005-03)
This paper addresses the problem of the renormalization group k turbulence modeling of a vegetated multi-stage compound channel. Results from Micro acoustic Doppler velocimeter（ADV） tests are used with time and spat...
关键词：compound channel open channel flow VEGETATION double-averaging concept bed shear stress 
刚性淹没双层植被明渠水流紊流特性研究被引量：13
《四川大学学报（工程科学版）》2014年第1期61-67,共7页王雯 槐文信 
国家自然科学基金资助项目(51079102;11372232);高等学校博士点基金资助项目(20130141110016)
采用标准k-ε紊流模型,结合雷诺平均Navier-Stokes方程,对刚性淹没双层植被明渠水流特性进行研究。计算所得的流速值与实测值吻合良好,表明计算方法可行。进而根据空间及时间的双平均理论,给出了双平均条件下的明渠流速、雷诺应力及紊...
关键词：明渠流 植被 紊流模型 紊动能 双平均理论 紊动能平衡 
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