CFD-DEM simulation of three-dimensional aeolian sand movement

CORC > 力学研究所 > 中国科学院力学研究所 > 等离子体与燃烧中心(2009-2011)

	CFD-DEM simulation of three-dimensional aeolian sand movement
	Yang JC(杨杰程); Zhang Y(张宇); Liu DY(刘大有); Wei XL(魏小林); Zhang Y
刊名	Science China-Physics Mechanics & Astronomy
	2010
通讯作者邮箱	zhangyu@imech.ac.cn
卷号	53 期号:7 页码:1306-1318
ISSN号	1674-7348
通讯作者	Zhang Y
合作状况	国内
中文摘要	A three-dimensional CFD-DEM model is proposed to investigate the aeolian sand movement. The results show that the mean particle horizontal velocity can be expressed by a power function of heights. The probability distribution of the impact and lift-off velocities of particles can be described by a log-normal function, and that of the impact and lift-off angles can be expressed by an exponential function. The probability distribution of particle horizontal velocity at different heights can be described as a lognormal function, while the probability distribution of longitudinal and vertical velocity can be described as a normal function. The comparison with previous two-dimensional calculations shows that the variations of mean particle horizontal velocity along the heights in two-dimensional and three-dimensional models are similar. However, the mean particle density of the two-dimensional model is larger than that in reality, which will result in the overestimation of sand transportation rate in the two-dimensional calculation. The study also shows that the predicted probability distributions of particle velocities are in good agreement with the experimental results.
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	WIND-TUNNEL ; SALTATION ; TRANSPORT ; VELOCITY
收录类别	SCI
资助信息	National Natural Science Foundation of China [10972223]; CAS Innovation Program
原文出处	http://www.springerlink.com/content/63v836u871500885/
语种	英语
WOS记录号	WOS:000280210700026
公开日期	2011-03-01 ; 2011-03-30
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/43325]
专题	力学研究所_等离子体与燃烧中心(2009-2011)
通讯作者	Zhang Y
推荐引用方式 GB/T 7714	Yang JC,Zhang Y,Liu DY,et al. CFD-DEM simulation of three-dimensional aeolian sand movement[J]. Science China-Physics Mechanics & Astronomy,2010,53(7):1306-1318.
APA	杨杰程,张宇,刘大有,魏小林,&Zhang Y.(2010).CFD-DEM simulation of three-dimensional aeolian sand movement.Science China-Physics Mechanics & Astronomy,53(7),1306-1318.
MLA	杨杰程,et al."CFD-DEM simulation of three-dimensional aeolian sand movement".Science China-Physics Mechanics & Astronomy 53.7(2010):1306-1318.