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Article Dans Une Revue Journal of the Brazilian Society of Mechanical Sciences and Engineering Année : 2023

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

Résumé

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.
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Dates et versions

hal-04337763 , version 1 (12-12-2023)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

B. Furieri, C. de Morais, J. Santos, Jean-Luc Harion. Wind tunnel and CFD analysis of dust re-emission potential from ground regions around successive stockpiles. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2023, 45 (12), pp.653. ⟨10.1007/s40430-023-04587-y⟩. ⟨hal-04337763⟩
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