干旱区生态环境知识资源中心(Arid): Optimal design for vegetative windbreaks using 3D numerical simulations

Arid

DOI	10.1016/j.agrformet.2020.108290
	Optimal design for vegetative windbreaks using 3D numerical simulations
	Guo, Zhiyi; Yang, Xiaofan; Wu, Xiaoxu; Zou, Xueyong; Zhang, Chunlai; Fang, Hui; Xiang, Hongxu
通讯作者	Wu, XX (corresponding author), Beijing Normal Univ, Coll Global Change & Earth Syst Sci, State Key Lab Earth Surface Proc & Resource Ecol, Xinjiekouwai St 19, Beijing 100875, Peoples R China.
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2021
卷号	298
英文摘要	Vegetative windbreaks are widely used to control wind erosion by reducing wind speed and attenuating sand movement, which motivates systematic research on optimal design for vegetative windbreaks. In this study, at the wind-tunnel scale, we conducted 3-D computational fluid dynamics (CFD) simulations with a realizable SST k-omega) turbulence model that incorporates realistic geometries of vegetative windbreaks (Artemisia and Salix) to investigate wind dynamics around vegetative windbreaks and aid optimal design in aeolian engineering practice. The modified CFD models for vegetative windbreaks were first validated by comparing results with those from wind-tunnel experiments. Furthermore, we developed two new indexes (mRc and mBEI) based on the reduction coefficient (Rc((x,z))) and barrier effective index (BET) to evaluate the shelter effect. Optimal designs including the structural parameters and arrangements for vegetative windbreaks were then determined as follows: (1) three-row windbreaks were more effective for both Artemisia and Salix windbreaks; inter-row spacings of 2.5-3h(A) and 1-1.5(S) were optimal (where h(A) and h(S) are the heights of the shrubs) for Artemisia and Salix windbreaks, respectively; (2) a staggered arrangement worked better for both monospecific windbreaks; (3) a two-row-one-belt system with inter-belt spacing of 8h(A) and 10h(S) was optimal under middle-velocity conditions, while a threerow-one-belt system with inter-belt spacing of 16h(A) and 16h(S) was optimal under high-velocity conditions; (4) multispecific-vegetative windbreaks were optimal when considering velocity reduction, while a Salix-only windbreak system was optimal for shelter distance. This research is expected to advance fundamental understanding of wind dynamics around vegetative windbreaks and provide references for building vegetative windbreaks in arid regions.
英文关键词	Vegetative windbreak Aeolian engineering Optimal design Computational fluid dynamics Wind-tunnel experiment
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000610797100012
WOS关键词	WIND-EROSION ; AIR-FLOW ; SHELTER ; MODELS ; TUNNEL ; SINGLE
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347621
作者单位	[Guo, Zhiyi; Wu, Xiaoxu; Fang, Hui; Xiang, Hongxu] Beijing Normal Univ, Coll Global Change & Earth Syst Sci, State Key Lab Earth Surface Proc & Resource Ecol, Xinjiekouwai St 19, Beijing 100875, Peoples R China; [Guo, Zhiyi; Zou, Xueyong; Zhang, Chunlai] Beijing Normal Univ, Engn Ctr Desertificat & Blown Sand Control, Minist Educ, Beijing 100875, Peoples R China; [Yang, Xiaofan; Zou, Xueyong; Zhang, Chunlai] Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Guo, Zhiyi,Yang, Xiaofan,Wu, Xiaoxu,et al. Optimal design for vegetative windbreaks using 3D numerical simulations[J]. 北京师范大学,2021,298.
APA	Guo, Zhiyi.,Yang, Xiaofan.,Wu, Xiaoxu.,Zou, Xueyong.,Zhang, Chunlai.,...&Xiang, Hongxu.(2021).Optimal design for vegetative windbreaks using 3D numerical simulations.AGRICULTURAL AND FOREST METEOROLOGY,298.
MLA	Guo, Zhiyi,et al."Optimal design for vegetative windbreaks using 3D numerical simulations".AGRICULTURAL AND FOREST METEOROLOGY 298(2021).