国家自然科学基金(10972164)

作品数：6被引量：12H指数：1
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相关作者：李志晶曹志先胡鹏更多>>
相关机构：赫瑞瓦特大学武汉大学更多>>
相关期刊：《Acta Mechanica Sinica》《Theoretical & Applied Mechanics Letters》《Journal of Mountain Science》《力学学报》更多>>
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Sand particle dislodgement in windblown sand
《Acta Mechanica Sinica》2014年第6期910-916,共7页Tian-Li Bo Zheng Li Xiao-Jing Zheng 
supported by the National Natural Science Foundation of China(11072097,11232006,11202088,10972164,and11121202);the Science Foundation of Ministry of Education of China(308022);Science and technology project of Gansu Province(1208RJYA006);National Key Technology R&D Program(2013BAC07B01)
The incipient motion of sand particle from sand bed plays a very important role in the prediction of windblown sand.In this paper,we proposed a new method for predicting the incipient motion of sand particle based on ...
关键词：Incipient motion Rolling mode Average wind speed Total impulse Windblown sand 
Numerical Analysis of Adaptation-to-capacity Length for Fluvial Sediment Transport被引量：1
《Journal of Mountain Science》2014年第6期1491-1498,共8页LI Zhi-jing CAO Zhi-xian Gareth PENDER HU Peng 
funded by Natural Science Foundation of China (Grants Nos. 11172217, 10932012 and 10972164)
Over the last several decades,various sediment transport capacity formulations have been used by geomorphologists and engineers to calculate fluvial morphological changes.However,it remains poorly understood if the ad...
关键词：Sediment transport Sediment transport capacity Mathematical river modeling Bed load Suspended load 
风沙与水沙运动多重时间尺度与深度积分模式被引量：1
《力学学报》2013年第2期158-163,共6页李志晶 曹志先 胡鹏 Gareth Pender 
国家自然科学基金资助项目(10972164)~~
针对风沙与水沙动力学研究的共性,提出风沙与水沙运动统一深度积分模式;在此基础上,将水沙运动过程多重时间尺度理论扩展至风沙运动,比较研究风沙与水沙运动向平衡状态调整的时间尺度特征.数值算例与风洞实验结果对比表明,积分平均模型...
关键词：风沙运动 水沙运动 数值模拟 时间尺度 
Analysis of sand particles’ lift-off and incident velocities in wind-blown sand flux被引量：1
《Acta Mechanica Sinica》2013年第2期158-165,共8页Tian-Li Bo Xiao-Jing Zheng Shao-Zhen Duan Yi-Rui Liang 
supported by the National Natural Science Foundation of China (11072097, 11232006, 11202088, 10972164 and 11121202);the Science Foundation of Ministry of Education of China (308022);Fundamental Research Funds for the Central Universities (lzujbky-2009-k01);the Project of the Ministry of Science and Technology of China (2009CB421304)
In the research of windblown sand movement,the lift-off and incident velocities of saltating sand particles play a significant role in bridging the spatial and temporal scales from single sand particle＇s motion to wi...
关键词：Probability distribution·Sand particles' horizontal velocities·Sand particles' vertical velocities·Center of the Gaussian distribution·Decay constant of the negative exponential distribution 
Investigation on very large scale motions(VLSMs) and their influence in a dust storm被引量：9
《Science China(Physics,Mechanics & Astronomy)》2013年第2期306-314,共9页ZHENG XiaoJing ZHANG JingHong WANG GuoHua LIU HongYou ZHU Wei 
supported by the National Natural Science Foundation of China (Grant Nos. 11232006,11121202,10972164,40830103,and 11072097);the State Key Dvelopment Program for Basic Research of China (Grant No. 2009CB421304)
Based on the real-time synchronous measurements of the wind velocity,temperature,the PM10 concentration at 16 m and 47 m during a dust storm event,in which Reynolds number Re exceeds 6×106,this study reveals the exis...
关键词：high-Reynolds turbulence dust storm very large scale motions power spectrum field observation 
Multiple time scales of fluvial processes—theory and applications
《Theoretical & Applied Mechanics Letters》2011年第5期1-7,共7页G.Pender 
supported by the National Natural Science Foundation of China (10932012 and 10972164);State Key Basic Research and Development Program (973) of China (2007CB714106)
Fluvial processes comprise water flow,sediment transport and bed evolution,which normally feature distinct time scales.The time scales of sediment transport and bed deformation relative to the flow essentially measure...
关键词：sediment-laden flow fluvial processes capacity/non-capacity model coupled/decoupled model multiple time scales FLOODING 
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