Numerical simulation of airflow and particle collection by vegetative barriers

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Show simple item record Guo, Li Maghirang, Ronaldo G. 2012-06-14T15:32:46Z 2012-06-14T15:32:46Z 2012-06-14
dc.description.abstract Vegetative barriers have the potential to mitigate particulate matter (PM) from open dust sources, including unpaved and paved roads, exposed storage piles, and agricultural sources; however, data on their effectiveness in capturing PM are limited. This study was conducted to predict the airflow and particle collection efficiency of vegetative barriers. The applicability of computational fluid dynamics (CFD) in modeling airflow around and through porous barriers was first evaluated by simulating airflow passing a porous fence (1.2 m high X 0.01 m thick, 50% porosity) using standard and realizable kappa - epsilon turbulence models in FLUENT. Predicted air velocities compared favorably with available experimental data. The CFD model was then applied to simulate airflow and particle collection by a row of trees (2.2 m high X 1.6 m wide) with characteristics similar to those of hawthorn trees. The Eulerian-Eulerian model was used to predict particle transport and collection by the tree elements. Predicted particle collection efficiencies for the trees agreed with available experimental data and ranged from less than 1% for 0.875-mu m particles to approximately 32% for 15-mu m particles. Results from this study indicated that numerical simulation with CFD can be used to predict particle collection efficiency of vegetative barriers and that this technique has the potential to advance research on vegetative barriers for dust control for open sources.. Further work is investigating effects of the structure of vegetative barriers on particle collection. en_US
dc.relation.uri en_US
dc.rights Permission to archive granted by Engineering Applications of Computational Fluid Mechanics, May 7, 2012. en_US
dc.subject Computational fluid dynamics (CFD) en_US
dc.subject Fugitive dust en_US
dc.subject Dust control en_US
dc.subject Vegetative barriers en_US
dc.title Numerical simulation of airflow and particle collection by vegetative barriers en_US
dc.type Article (publisher version) en_US 2012 en_US
dc.citation.epage 122 en_US
dc.citation.issue 1 en_US
dc.citation.jtitle Engineering Applications of Computational Fluid Mechanics en_US
dc.citation.spage 110 en_US
dc.citation.volume 6 en_US
dc.contributor.authoreid lig en_US
dc.contributor.authoreid rmaghir en_US

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