IEECAS OpenIR  > 粉尘与环境研究室
Numerical Simulation of Airflow Structure and Dust Emissions behind Porous Fences Used to Shelter Open Storage Piles
Song, CF (Song, Chong-Fang)[ 1 ]; Peng, L (Peng, Lin)[ 1 ]; Cao, JJ (Cao, Jun-Ji)[ 2 ]; Mu, L (Mu, Ling)[ 1 ]; Bai, HL (Bai, Hui-Ling)[ 1 ]; Liu, XF (Liu, Xiao-Feng)[ 1 ]
2014-10-01
Source PublicationAEROSOL AND AIR QUALITY RESEARCH
Volume14Issue:6Pages:1584-1592
Subtype期刊论文
Abstract

Porous fences can reduce dust emissions from storage piles in open storage yards, but their sheltering effect depends on the airflow structure around the pile, and the shear stress distribution on each surface. In this study, static flow fields were numerically simulated using k-epsilon standard The turbulence model; the shear stress characteristics and distribution on the windward side, flat-top surface, and leeward side of a typical prismatic material stack were analyzed. The distribution of the aerodynamic structure of each surface of the storage pile was determined according to the flow field data for fences of the porosities epsilon = 0, 0.2, 0.3, 0.4, 0.5, and 0.6. The results indicated that at low porosities (epsilon = 0, 0.2) a recirculating flow appeared in the region between the fence and the pile. The shear force acted downward the windward slope, and the maximum dust emission occurred at two-thirds the height of the windward side, rather than at the top, as in unfenced conditions. Using the porous fence simulated in this study, shear stress on the windward side and the flat-top surface first decreased, then increased with increasing porosity; the lowest porosity values were 0.2 and 0.3, and the shear stress on the prismatic leeside changed little with increasing porosity. The numerical predictions indicated that a fence with porosity between 0.2 and 0.3 is optimal.

KeywordComputational Fluid Dynamics (Cfd) Open Storage Pile Dust Emission Porous Fence
DOI10.4209/aaqr.2013.11.0331
Indexed BySCIE
Language英语
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9780
Collection粉尘与环境研究室
Corresponding AuthorPeng, L (Peng, Lin)[ 1 ]
Affiliation1.College of Environmental Science and Engineering, Taiyuan University of Technology, 79 Yingze West Street, Taiyuan030024, China;
2.Key Laboratory of Aerosol, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China
Recommended Citation
GB/T 7714
Song, CF ,Peng, L ,Cao, JJ ,et al. Numerical Simulation of Airflow Structure and Dust Emissions behind Porous Fences Used to Shelter Open Storage Piles[J]. AEROSOL AND AIR QUALITY RESEARCH,2014,14(6):1584-1592.
APA Song, CF ,Peng, L ,Cao, JJ ,Mu, L ,Bai, HL ,&Liu, XF .(2014).Numerical Simulation of Airflow Structure and Dust Emissions behind Porous Fences Used to Shelter Open Storage Piles.AEROSOL AND AIR QUALITY RESEARCH,14(6),1584-1592.
MLA Song, CF ,et al."Numerical Simulation of Airflow Structure and Dust Emissions behind Porous Fences Used to Shelter Open Storage Piles".AEROSOL AND AIR QUALITY RESEARCH 14.6(2014):1584-1592.
Files in This Item:
File Name/Size DocType Version Access License
Numerical Simulation(2884KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Song, CF (Song, Chong-Fang)[ 1 ]]'s Articles
[Peng, L (Peng, Lin)[ 1 ]]'s Articles
[Cao, JJ (Cao, Jun-Ji)[ 2 ]]'s Articles
Baidu academic
Similar articles in Baidu academic
[Song, CF (Song, Chong-Fang)[ 1 ]]'s Articles
[Peng, L (Peng, Lin)[ 1 ]]'s Articles
[Cao, JJ (Cao, Jun-Ji)[ 2 ]]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Song, CF (Song, Chong-Fang)[ 1 ]]'s Articles
[Peng, L (Peng, Lin)[ 1 ]]'s Articles
[Cao, JJ (Cao, Jun-Ji)[ 2 ]]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.