干旱区生态环境知识资源中心(Arid): Application of Boundary Layer Displacement Thickness in Wind Erosion Protection Evaluation: Case Study of a Salix psammophila Sand Barrier

Arid

DOI	10.3390/ijerph16040592
	Application of Boundary Layer Displacement Thickness in Wind Erosion Protection Evaluation: Case Study of a Salix psammophila Sand Barrier
	Zhang, Shuai 1,2; Ding, Guo-Dong 1,2; Yu, Ming-han 1,2; Gao, Guang-lei 1,2; Zhao, Yuan-yuan 1,2; Wang, Long 1,2; Wang, Yi-zhao 1,2
通讯作者	Ding, Guo-Dong
来源期刊	INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
EISSN	1660-4601
出版年	2019
卷号	16 期号:4
英文摘要	Since the establishment of blown sand physics, surface roughness has been widely used in current research to indicate the ability of a surface to resist wind erosion and to evaluate the windproof effect of protective measures. However, since the calculation of surface roughness can result in different values and its applicability is poor, there are disadvantages to its use. Therefore, it is proposed that the boundary layer displacement thickness should be used rather than roughness as an indicator to solve such problems. To analyze the new indicator's accuracy and applicability when evaluating the effect of protective measures, a wind tunnel simulation experiment on a typical mechanical protection measure commonly used for sand control in China was conducted. Indicators of roughness and boundary layer displacement thickness were compared in evaluating the windproof performance of a Salix psammophila sand barrier of differing heights, side lengths, and porosities. The wind speed acceleration rate and effective protection area, which can directly reflect the protective effect of a sand barrier, were analyzed as evaluation criteria. The results show that roughness can only reflect the influence of height on the windbreak effect of sand barriers, whereas the boundary layer displacement thickness accurately showed the influence of height, side length, and porosity on the windproof effect of the sand barriers. Compared with roughness, the boundary layer displacement thickness was more strongly correlated with the effective protection area. Therefore, the boundary layer displacement thickness, rather than roughness, should be used as a new indicator when evaluating the windproof effect of protective measures.
英文关键词	Salix psammophila sand barrier roughness boundary layer displacement thickness wind speed acceleration rate effective protection area
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold, Green Published, Green Submitted
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000460804900071
WOS关键词	AERODYNAMIC ROUGHNESS ; FIELD OBSERVATIONS ; WINDBLOWN SAND ; GRAIN-SIZE ; DESERT ; SURFACES ; HEIGHT ; DESIGN ; LENGTH ; LAND
WOS类目	Environmental Sciences ; Public, Environmental & Occupational Health
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216420
作者单位	1.Beijing Forestry Univ, Yanchi Res Stn, Sch Soil & Water Conservat, 35 Qinghua East Rd, Beijing 100083, Peoples R China; 2.Beijing Forestry Univ, Key Lab State Forestry Adm Soil & Water Conservat, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Shuai,Ding, Guo-Dong,Yu, Ming-han,et al. Application of Boundary Layer Displacement Thickness in Wind Erosion Protection Evaluation: Case Study of a Salix psammophila Sand Barrier[J]. 北京林业大学,2019,16(4).
APA	Zhang, Shuai.,Ding, Guo-Dong.,Yu, Ming-han.,Gao, Guang-lei.,Zhao, Yuan-yuan.,...&Wang, Yi-zhao.(2019).Application of Boundary Layer Displacement Thickness in Wind Erosion Protection Evaluation: Case Study of a Salix psammophila Sand Barrier.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,16(4).
MLA	Zhang, Shuai,et al."Application of Boundary Layer Displacement Thickness in Wind Erosion Protection Evaluation: Case Study of a Salix psammophila Sand Barrier".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 16.4(2019).