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	Horizontal momentum and kinetic energy loss of airflow near the surface of sandy beds
	Lue, Ping; Dong, Zhibao
刊名	SEDIMENTARY GEOLOGY
	2011-03-01
卷号	234期号:1-4页码:116-119
关键词	Near-surface layers Kinetic energy loss Horizontal momentum
ISSN号	0037-0738
DOI	10.1016/j.sedgeo.2010.12.007
通讯作者	Lue, Ping(lvping@lzb.ac.cn)
英文摘要	In a blowing-sand system, the wind provides the driving forces for particle movement while the moving particles exert an opposing force on the wind by extracting its kinetic energy and momentum to sustain their motion. This extraction of kinetic energy and momentum by the moving particles can be characterized by the magnitude and rate of kinetic energy and horizontal momentum loss. In this study, we used the adaptation of wind velocity profiles to the movement of blowing sand based on the experimental data in a wind tunnel for different grain sizes and at different free-stream wind velocities, calculated the kinetic energy and horizontal momentum loss. The results suggest that the kinetic energy and horizontal momentum loss both increase with increasing height from the surface to a certain height, and then decrease with increasing height. In addition, both factors increase with increasing free-stream wind velocity, and decrease with increasing sand size. (C) 2010 Elsevier B.V. All rights reserved.
收录类别	SCI
WOS关键词	VELOCITY PROFILE ; WIND-TUNNEL ; SALTATION ; SIMULATION ; GRAINS
WOS研究方向	Geology
WOS类目	Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000287559800009
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556499
专题	寒区旱区环境与工程研究所
通讯作者	Lue, Ping
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Lue, Ping,Dong, Zhibao. Horizontal momentum and kinetic energy loss of airflow near the surface of sandy beds[J]. SEDIMENTARY GEOLOGY,2011,234(1-4):116-119.
APA	Lue, Ping,&Dong, Zhibao.(2011).Horizontal momentum and kinetic energy loss of airflow near the surface of sandy beds.SEDIMENTARY GEOLOGY,234(1-4),116-119.
MLA	Lue, Ping,et al."Horizontal momentum and kinetic energy loss of airflow near the surface of sandy beds".SEDIMENTARY GEOLOGY 234.1-4(2011):116-119.

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