Wind tunnel and CFD analysis of dust re-emission potential from ground regions around successive stockpiles

Open industrial yards of granular materials can result in a large amount of particles emitted into the atmosphere due to wind erosion, offering risks to the environment and to the human health. It is important to estimate these emissions in order to manage dust control techniques and environmental p...

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Bibliographic Details
Published inJournal of the Brazilian Society of Mechanical Sciences and Engineering Vol. 45; no. 12
Main Authors Furieri, B., de Morais, C. L., Santos, J. M., Harion, J.-L.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2023
Springer Nature B.V
Springer Verlag
Subjects
Chemical and Process Engineering
Dust control
Emission analysis
Engineering
Engineering Sciences
Environmental Engineering
Environmental Sciences
Fluid flow
Fluid mechanics
Granular materials
Mechanical Engineering
Mechanics
Physics
Stockpiling
Technical Paper
Thermics
Wind erosion
Wind tunnels
Air pollution
Computational fluid dynamics
Particulate matter
Steel industry
Diffuse emissions
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Summary:Open industrial yards of granular materials can result in a large amount of particles emitted into the atmosphere due to wind erosion, offering risks to the environment and to the human health. It is important to estimate these emissions in order to manage dust control techniques and environmental polices requirements. There are several studies on particles emission from stockpiles surfaces, but there are few studies considering the re-emission that can occur from the regions around the stockpiles. Therefore, the present work aims to investigate the influence of the fluid flow complex structures near the ground region surrounding stockpiles and how they can influence the re-emission of particles. Experimental work using the oil-film technique and numerical simulations of the flow over one and two successive stockpiles oriented 30°, 60° and 90° to the incoming flow were performed. The results showed that a stockpile or successive stockpiles oriented 60° must be avoided in industrial sites as they promote high values of re-emitted mass around the piles. On the other hand, piles oriented 90° to the incoming flow showed the lowest re-emission potential for the surroundings. Finally, the gap between successive stockpiles showed insignificant influence on the emission estimates.
ISSN:1678-5878
1806-3691
DOI:10.1007/s40430-023-04587-y