干旱区生态环境知识资源中心(Arid): Wind tunnel experiments for dynamic modeling and analysis of motion trajectories of wind-blown sands

Arid

DOI	10.1140/epje/i2020-11945-0
	Wind tunnel experiments for dynamic modeling and analysis of motion trajectories of wind-blown sands
	Li, Shuanhu 1; Li, Chi 2; Yao, De 3; Ge, Xiaodong 2; Zhang, Guiping 4
通讯作者	Li, Chi
来源期刊	EUROPEAN PHYSICAL JOURNAL E
ISSN	1292-8941
EISSN	1292-895X
出版年	2020
卷号	43 期号:4
英文摘要	The hazards associated with travelling on highways in desert regions arise mainly from wind-borne sand disasters, such as complete or partial burial of the road surface by sand particles, and from erosion of the roadbed by the particles. To simulate the damage process caused by sand particles on roads in the desert, scaled-down tests were performed in a wind tunnel whereby sand particles of differing diameters and roadbed models of different gradients were tested and the impact trajectories of the sand particles were captured using a high-speed camera. The results showed that the impact trajectories may be classified into four types, and the proportion of each type is essentially stable with the statistical curves for the trajectories being similar to the Poisson distribution. The diameters of the sand particles and the slopes of the roadbed model influenced the impact trajectories, which also impacted the statistical values for each particle type. Owing to the Magnus force, the direction of rotation and the angular velocity of the sand particles controlled the nature of the collision trajectories; however, the direction of rotation did not remain in a fixed plane and the rotation speed only reached about 20% of the value of the first critical speed. The wind tunnel experiments enable a better understanding of the motion trajectories, rotation speed, force situation, and collision trajectories, providing a useful benchmark for research on wind-induced disasters on roads in desert regions.
英文关键词	Flowing Matter Granular Materials
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000528551000003
WOS关键词	GRAIN-SIZE DISTRIBUTION ; PARTICLES ; SALTATION ; VELOCITY ; MAGNUS ; IMPACT ; FLUX
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Applied ; Polymer Science
WOS研究方向	Chemistry ; Materials Science ; Physics ; Polymer Science
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314496
作者单位	1.Inner Mongolia Univ Technol, Coll Sci, Hohhot 010051, Peoples R China; 2.Inner Mongolia Univ Technol, Coll Civil Engn, Key Lab Civil Engn Struct & Mech, Hohhot 010051, Peoples R China; 3.Inner Mongolia Univ Technol, Coll Chem Engn, Hohhot 010051, Peoples R China; 4.Qian Tu Traff Design Ltd Liabil Co, Xilin Hot 026000, Peoples R China
推荐引用方式 GB/T 7714	Li, Shuanhu,Li, Chi,Yao, De,et al. Wind tunnel experiments for dynamic modeling and analysis of motion trajectories of wind-blown sands[J],2020,43(4).
APA	Li, Shuanhu,Li, Chi,Yao, De,Ge, Xiaodong,&Zhang, Guiping.(2020).Wind tunnel experiments for dynamic modeling and analysis of motion trajectories of wind-blown sands.EUROPEAN PHYSICAL JOURNAL E,43(4).
MLA	Li, Shuanhu,et al."Wind tunnel experiments for dynamic modeling and analysis of motion trajectories of wind-blown sands".EUROPEAN PHYSICAL JOURNAL E 43.4(2020).