干旱区生态环境知识资源中心(Arid): Optimization designs of artificial facilities in deserts based on computational simulation

Arid

DOI	10.1007/s40333-021-0059-4
	Optimization designs of artificial facilities in deserts based on computational simulation
	Dun, Hongchao; Huang, Ning; Zhang, Jie
通讯作者	Huang, N ; Zhang, J (corresponding author), Lanzhou Univ, Key Lab Mech Disaster & Environm Western China, Lanzhou 730000, Peoples R China.
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2021
英文摘要	Sediment transport of sand particles by wind is one of the main processes leading to desertification in arid regions, which severely impairs the ability of mankind to produce and live by drifting sand into settlements. Optimization designs of artificial facilities have lately attracted extensive interest for human settlement systems in deserts because of their acceptable protection effect, convenience of implementation, and low material cost. However, the complexity of a settlement system poses challenges concerning finding suitable materials, artificial facilities, and optimization designs for sand deposition protection. In an effort to overcome these challenges, we propose a settlement system built with brick, solar panel, and building arrays to meet the basic needs of human settlements in arid regions while preventing wind-sand disasters. The wind flow and movement characteristics of sand particles in the brick, panel, and building arrays were calculated using computational fluid dynamics and discrete phase model. The performance of three types of arrays in wind-sand flow in terms of decreasing the wind velocity and sand-particle invasion distance was evaluated. The results show that the wind velocity near the surface and the sand invasion distance were significantly decreased in the space between the brick arrays through properly selected vertical size and interspaces, indicating that the brick arrays have an impressive sand fixing and blocking performance; their effective protection distance was 3-4 m. The building arrays increased the near-surface wind velocity among buildings, resulting in less deposition of sand particles. The solar panel arrays were similar to the building arrays in most cases, but the deposition of sand particles on solar panels exerted a negative effect on energy utilization efficiency. Therefore, taking the optimal configuration of the settlement system into consideration, this study concludes that (1) brick arrays, which were proven effective in preventing sand particles, must be arranged in an upwind area; (2) solar panel arrays could accelerate the wind flow, so they are best to be arranged at the place where sand particles deposited easily; and (3) building arrays present a better arrangement in downwind areas.
英文关键词	desert city sand deposition optimization wind flow sand movement
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000635489100001
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352308
作者单位	[Dun, Hongchao; Huang, Ning; Zhang, Jie] Lanzhou Univ, Key Lab Mech Disaster & Environm Western China, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Dun, Hongchao,Huang, Ning,Zhang, Jie. Optimization designs of artificial facilities in deserts based on computational simulation[J]. 兰州大学,2021.
APA	Dun, Hongchao,Huang, Ning,&Zhang, Jie.(2021).Optimization designs of artificial facilities in deserts based on computational simulation.JOURNAL OF ARID LAND.
MLA	Dun, Hongchao,et al."Optimization designs of artificial facilities in deserts based on computational simulation".JOURNAL OF ARID LAND (2021).