Articles | Volume 23, issue 2
https://doi.org/10.5194/acp-23-1421-2023
https://doi.org/10.5194/acp-23-1421-2023
Research article
 | 
26 Jan 2023
Research article |  | 26 Jan 2023

Modeling of street-scale pollutant dispersion by coupled simulation of chemical reaction, aerosol dynamics, and CFD

Chao Lin, Yunyi Wang, Ryozo Ooka, Cédric Flageul, Youngseob Kim, Hideki Kikumoto, Zhizhao Wang, and Karine Sartelet

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Cited articles

Anenberg, S. C., Miller, J., Minjares, R., Du, L., Henze, D. K., Lacey, F., Malley, C. S., Emberson, L., Franco, V., Klimont, Z., and Heyes, C.: Impacts and mitigation of excess diesel-related NO x emissions in 11 major vehicle markets, Nature, 545, 467–471, https://doi.org/10.1038/nature22086, 2017. 
Archambeau, F., Méchitoua, N., and Sakiz, M.: Code Saturne: A Finite Volume Code for Turbulent flows – Industrial Applications, International Journal on Finite Volumes, 1, https://hal.science/hal-01115371, 2004. 
Arpaci, V. S. and Larsen, P. S.: Convection Heat Transfer, Prentice Hall, New York, ISBN 10. 0131723464, ISBN-13. 978-0131723467, 1984. 
Belcher, S. E.: Mixing and transport in urban areas, Philosophical Transactions of the Royal Society A: Mathematical, Phys. Eng. Sci., 363, 2947–2968, https://doi.org/10.1098/rsta.2005.1673, 2005. 
Bishop, G. A. and Stedman, D. H.: Reactive Nitrogen Species Emission Trends in Three Light-/Medium-Duty United States Fleets, Environ Sci Technol, 49, 11234–11240, https://doi.org/10.1021/acs.est.5b02392, 2015. 
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Short summary
In this study, SSH-aerosol, a modular box model that simulates the evolution of gas, primary, and secondary aerosols, is coupled with the computational fluid dynamics (CFD) software, OpenFOAM and Code_Saturne. The transient dispersion of pollutants emitted from traffic in a street canyon of Greater Paris is simulated. The coupled model achieved better agreement in NO2 and PM10 with measurement data than the conventional CFD simulation which regards pollutants as passive scalars.
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