干旱区生态环境知识资源中心(Arid): Effectiveness of hole plate-type sand barriers in reducing aeolian sediment flux: Evaluation of effect of hole size

Arid

DOI	10.1016/j.aeolia.2019.03.001
	Effectiveness of hole plate-type sand barriers in reducing aeolian sediment flux: Evaluation of effect of hole size
	Chen, Boyu; Cheng, Jianjun; Xin, Lingui; Wang, Rui
通讯作者	Cheng, Jianjun
来源期刊	AEOLIAN RESEARCH
ISSN	1875-9637
EISSN	2212-1684
出版年	2019
卷号	38 页码:1-12
英文摘要	Hole plate-type sand barriers can effectively control wind-sand disasters along the railways running through the windy Gobi desert region, and the hole diameter of hole plate is the key geometric parameter influencing their protective effect. To determine the effect of hole diameter on the wind-sand flow field of hole plate-type sand barriers, in this study, numerical simulations and wind tunnel tests were conducted on hole plate-type sand barriers with different hole diameters (1.03 cm, 2.06 cm, and 4.12 cm) but the same porosity (30%). The results showed that the protective effect of sand barriers presented regular changes with the change in hole diameter. Regarding the flow field, an increase in hole diameter increased the wind penetration rate of sand barrier, decreased the area of acceleration zone above the sand barrier, shortened the length of vortex zone on the leeward side, and lowered the degree of wind velocity reduction by sand barrier. Regarding the distribution of sand deposit, an increase in hole diameter decreased the sand deposits on the windward side of sand barrier, increased the sand deposits on the leeward side, and overall shifted the sand deposit on the leeward side towards the downwind direction. Moreover, hole diameter and sand interception of sand barrier showed a negative correlation. The sand interception of sand barrier with the smallest hole diameter (1.03 cm) exceeded the sand interceptions of the other two sand barriers by 5.41% and 13.43%, respectively. At different heights, the sand barrier with a relatively small hole diameter maintained a relatively high sand-retaining efficiency. The advantage was particularly significant within the height range of 0.5-1H. Moreover, the effective protection ranges of the three sand barriers were approximately the same. The effective protection interval approximately ranged from 1H on the windward side to 10H on the leeward side, and the effective protection height was found to be 1H.
英文关键词	Hole diameter Flow field Sand deposit Numerical simulation Wind tunnel test
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000466827600001
WOS关键词	WIND-TUNNEL ; POROUS FENCES ; VELOCITY ; FLOW ; SHELTER ; PARTICLES ; MOVEMENT ; RAILWAY ; SECTION ; REGION
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/213895
作者单位	Shihezi Univ, Coll Water Resources & Architectural Engn, Shihezi 832003, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Chen, Boyu,Cheng, Jianjun,Xin, Lingui,et al. Effectiveness of hole plate-type sand barriers in reducing aeolian sediment flux: Evaluation of effect of hole size[J],2019,38:1-12.
APA	Chen, Boyu,Cheng, Jianjun,Xin, Lingui,&Wang, Rui.(2019).Effectiveness of hole plate-type sand barriers in reducing aeolian sediment flux: Evaluation of effect of hole size.AEOLIAN RESEARCH,38,1-12.
MLA	Chen, Boyu,et al."Effectiveness of hole plate-type sand barriers in reducing aeolian sediment flux: Evaluation of effect of hole size".AEOLIAN RESEARCH 38(2019):1-12.