SALTATION

作品数：37被引量：101H指数：6
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Wind erosion from crusted playa surfaces by no saltation and with saltation:A comparison through laboratory wind tunnel experiments
《International Soil and Water Conservation Research》2023年第3期518-527,共10页Guoming Zhang Li Li Wenjian Tang Lianyou Liu Peijun Shi Xujiao Han jiadong Dai 
supported by the National Natural Science Foundation of China(Grant Nos.41971120,41730639,42107353)。
Playas are common in many arid regions and recognized as a major source of hypersaline particles.A better understanding of wind erosion on crusted playas has significant implications for land management and pollution ...
关键词：Playa crust Sand bombardment Wind tunnel Surface abrasion Crust strength 
Effect of stones on the sand saltation threshold during natural sand and dust storms in a stony desert in Tsogt-Ovoo in the Gobi Desert,Mongolia被引量：1
《Journal of Arid Land》2021年第7期653-673,共21页Batjargal BUYANTOGTOKH Yasunori KUROSAKI Atsushi TSUNEKAWA Mitsuru TSUBO Batdelger GANTSETSEG Amarsaikhan DAVAADORJ Masahide ISHIZUKA Tsuyoshi T SEKIYAMA Taichu Y TANAKA Takashi MAKI 
This study was supported by the Arid Land Research Center's Project(Impacts of Climate Change on Drylands:Assessment and Adaptation,funded by the Japan's Ministry of Education,Culture,Sports,Science,and Technology);the Grants-in-Aid for Scientific Research(JSPS KAKENHI)(15H05115,17H01616,16H02712,and 25220201);the Environment Research and Technology Development Fund of the Environmental Restoration and Conservation Agency(JPMEERF20205001);This study was funded by the Joint Research Program of Arid Land Research Center,Tottori University(31C2003 and 31C2012).
Non-erodible elements such as stones and vegetation are key to controlling wind erosion and dust emission in drylands.Stony deserts are widely distributed in the Gobi Desert,but the effect of stones on wind erosion an...
关键词：arid region threshold friction velocity roughness density shear stress sand saltation threshold roughness correction Gobi Desert 
Large scale sand saltation over hard surface:a controlled experiment in still air被引量：2
《Journal of Arid Land》2021年第6期599-611,共13页LIU Benli WANG Zhaoyun NIU Baicheng QU Jianjun 
supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(XD23060201);the Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)(GML2019ZD0601);the National Natural Science Foundation of China(42071014);the Excellent Youth Innovation Promotion Association of the Chinese Academy of Sciences(Y202085)。
Saltation is the major particle movement type in wind erosion process.Saltating sand grains can rebound up to tens of times larger in length and height over hard surface(such as gravel surface)than over loose sand sur...
关键词：sand saltation TRAJECTORY gravel surface contact angle full-scale experiment 
Sand particle lift-off velocity measurements and numerical simulation of mass flux distributions in a wind tunnel被引量：4
《Journal of Arid Land》2017年第3期331-344,共14页XIAO Fengjun DONG Zhibao GUO Liejin WANG Yueshe LI Debiao 
supported by the Fundamental Research Funds for the Central Universities of China(GK201503053);the National Natural Science Foundation of China(41601002)
Lift-off velocity of saltating sand particles in wind-blown sand located at 1.0 mm above the sand bed surface was measured using a phase Doppler particle analyzer in a wind tunnel. The results show that the probabilit...
关键词：lift-off velocity lift-off angle joint probability distribution sand mass flux SALTATION 
Numerical simulation of sand load applied on high-speed train in sand environment被引量：4
《Journal of Central South University》2017年第2期442-447,共6页王田天 蒋崇文 高振勋 李椿萱 
High-speed train running in the sand environment is different from the general environment. In the former situation, there will be sand load applied on high-speed train(SLAHT) caused by sand particles hitting train su...
关键词：sand environment train SALTATION SUSPENSION sand load numerical simulation 
Soil Moisture Effects on Sand Saltation and Dust Emission Observed over the Horqin Sandy Land Area in China被引量：8
《Journal of Meteorological Research》2014年第3期444-452,共9页李晓岚 张宏升 
Supported by the National(Key)Basic Research and Development(973)Program of China(2010CB428501);China Meteorological Administration Special Public Welfare Research Fund(GYHY201006014);National Natural Science Foundation of China(41075005);Research Fund for Doctoral Program of Higher Education of China(20110001130010)
In this study, the eff ects of soil moisture on sand saltation and dust emission over the Horqin Sandy Land area are investigated, based on observations of three dust events in 2010. The minimum friction velocity init...
关键词：soil moisture sand saltation dust emission Horqin Sandy Land area 
Measuring the kinetic parameters of saltating sand grains using a high-speed digital camera被引量：5
《Science China(Physics,Mechanics & Astronomy)》2014年第6期1137-1143,共7页ZHANG Yang WANG Yuan JIA Pan 
supported by the National Natural Science Foundation of China(Grant No.11272252)
A high-speed digital camera is used to record the saltation of three sand samples(diameter range:300–500,200–300 and100–125μm).This is followed by an overlapping particle tracking algorithm to reconstruct the salt...
关键词：high-speed digital camera sand saltation particle tracking kinetic parameters 
Sand flux and wind profiles in the saltation layer above a rounded dune top被引量：6
《Science China Earth Sciences》2014年第3期523-533,共11页ZHANG ChunLai ZHOU Na ZHANG JiaQiong 
supported by the National Natural Science Foundation of China(Grant Nos.41171004&40871015)
The near-bed airflow and the movement of sand dune sediments by wind are fundamental dune geomorphological processes.This research measured the wind profiles and sand mass flux on the rounded top of a transverse dune ...
关键词：sand mass flux roughness length shear velocity modified Charnock constant 
Effects of the mid-air collision on sand saltation被引量：3
《Science China(Physics,Mechanics & Astronomy)》2008年第9期1416-1426,共11页HUANG Ning REN Shan ZHENG XiaoJing 
the Key Project of National Natural Science Foundation of China (Grant No 10532040);the National Natural Science Foundation of China (Grant Nos 40571018 and 10772073);the New Century Outstanding Talent of the Ministry of Education of China;the Science Fund of the Ministry of Education of China for PhD Program (Grant No 20060730014)
As to the fact that the effects of saltating particles’ mid-air collision on the sand transport rate are often neglected in the current theoretical models describing sand saltation movement,expressions to calculate v...
关键词：mid-air COLLISION SAND TRANSPORT RATE SALTATION 
Large-eddy simulation of formation of three-dimensional aeolian sand ripples in a turbulent field被引量：4
《Science China(Physics,Mechanics & Astronomy)》2008年第8期945-960,共16页WU ChuiJie1,WANG Ming2 & WANG Liang3 1 State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,China 2 Yellow River Institute of Hydraulic Research,Zhengzhou 450003,China 3 Research Center for Fluid Dynamics,Science School,PLA University of Science and Technology,Nanjing 211101,China 
the Key Project of National Natural Science Foundation of China (Grant No. 10532040)
With the method of large-eddy simulation,the equation of spherule motion and the method of immersed boundary condition,numerical simulations of three-dimen-sional turbulent aeolian motion and the formation of sand rip...
关键词：large-eddy simulation equation of spherule motion SAND RIPPLES SALTATION CREEP 
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