国家自然科学基金(11372232)

作品数：7被引量：38H指数：4
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相关作者：槐文信杨中华赵芳李成光曾玉红更多>>
相关机构：武汉大学中冶南方工程技术有限公司更多>>
相关期刊：《Applied Mathematics and Mechanics(English Edition)》《Journal of Hydrodynamics》《水利学报》《华中科技大学学报（自然科学版）》更多>>
相关主题：VEGETATION流速EFFECTDISPERSIONCOEFFICIENT更多>>
相关领域：水利工程理学农业科学更多>>
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刚性淹没球冠状植被水流特性试验研究被引量：10
《水利学报》2018年第3期353-361,共9页赵芳 Aristotelis Mavrommatis Anastasios Stamou 槐文信 杨中华 
国家自然科学基金项目(51439007,11172218,11372232)
本文将植被体型概化为由球状树冠和主干组成的树状植被,采用Micro ADV测量了树状植被影响下明渠水流的流速分布,分析了不同流量和水深条件下4组树状植被对明渠水流的影响,着重研究了树状刚性植被水流的平均流动和紊动结构,比较了多个典...
关键词：树状刚性植被 MICRO ADV 平均流速分布 紊动结构 象限分析 
Two timescales for longitudinal dispersion in a laminar open-channel flow
《Journal of Hydrodynamics》2017年第6期1081-1084,共4页王宇飞 槐文信 杨中华 季斌 
Project supported by the National Natural Science Foundation of China(Grant Nos.51439007,11372232)
At small dimensionless timescales T（= tD/H^2）, where t is the time, H is the depth of the channel and D is the molecular diffusion coefficient, the mean transverse concentration along the longitudinal direction is n...
关键词：Early stage longitudinal dispersion random walk particle method scalar transport 
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 
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 
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 
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