Articles | Volume 14, issue 7
https://doi.org/10.5194/gmd-14-4555-2021
https://doi.org/10.5194/gmd-14-4555-2021
Model description paper
 | 
23 Jul 2021
Model description paper |  | 23 Jul 2021

urbanChemFoam 1.0: large-eddy simulation of non-stationary chemical transport of traffic emissions in an idealized street canyon

Edward C. Chan and Timothy M. Butler

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Cited articles

Baik, J. J. and Kim, J. J.: A Numerical Study of Flow and Pollutant Dispersion Characteristics in Urban Street Canyons, J. Appl. Meteorol., 38, 1576–1589, 1998. a, b, c
Baker, J., Walker, H. L., and Cai, X.: A study of the dispersion and transport of reactive pollutants in and above street canyons – a large eddy simulation, Atmos. Environ., 38, 6883–6892, 2004. a
Bright, V. B., Bloss, W. J., and Cai, X.: Modelling atmospheric composition in urban street canyons, Weather, 66, 106–110, 2011. a
Bright, V. B., Bloss, W. J., and Cai, X.: Urban street canyons: Coupling dynamics, chemistry and within-canyon chemical processing of emissions, Atmos. Environ., 68, 127–142, 2013. a
Britter, R. E. and Hanna, S. R.: Flow and Dispersion in Urban Areas, Annu. Rev. Fluid Mech., 35, 469–496, 2003. a
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Short summary
A large-eddy simulation based chemical transport model is implemented for an idealized street canyon. The dynamics of the model are evaluated using stationary measurements. A transient model run is also conducted over a 24 h period, where variations of pollutant concentrations indicate dependence on emissions, background concentrations, and solar state. Comparison stationary model runs show changes in flow structure concentrations.