Articles | Volume 22, issue 7
https://doi.org/10.5194/acp-22-4509-2022
https://doi.org/10.5194/acp-22-4509-2022
Research article
 | 
07 Apr 2022
Research article |  | 07 Apr 2022

Large-eddy-simulation study on turbulent particle deposition and its dependence on atmospheric-boundary-layer stability

Xin Yin, Cong Jiang, Yaping Shao, Ning Huang, and Jie Zhang

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Subject: Aerosols | Research Activity: Atmospheric Modelling and Data Analysis | Altitude Range: Troposphere | Science Focus: Physics (physical properties and processes)
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Cited articles

Bergametti, G., Marticorena, B., Rajot, J. L., Foret, G., Alfaro, S. C., and Laurent, B.: Size-Resolved Dry Deposition Velocities of Dust Particles: In Situ Measurements and Parameterizations Testing, J. Geophys. Res.-Atmos., 123, 11080–11099, https://doi.org/10.1029/2018JD028964, 2018. 
Chamberlain, A. C.: Aspects of travel and deposition of aerosol and vapour clouds, No. AERE-HP/R-1261, United Kingdom Atomic Energy Research Establishment, Harwell, Berks, England, 35 pp., UK, 1953. 
Chamberlain, A. C.: Transport of Lycopodium spores and other small particles to rough surfaces, P. Roy. Soc. A.-Math. Phy., 296, 45–70, https://doi.org/10.1098/rspa.1967.0005, 1967. 
Chen, S. H. and Dudhia, J.: Annual report: WRF physics, Air Force Weather Agency, Boulder, 1–38, 2000. 
Colella, K. J. and Keith, W. L.: Measurements and scaling of wall shear stress fluctuations, Exp. Fluids, 34, 253–260, https://doi.org/10.1007/s00348-002-0552-2, 2003. 
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Short summary
Through a series of numerical experiments using the large-eddy-simulation model, we have developed an improved particle deposition scheme that takes into account transient wind shear fluctuations. Statistical analysis of the simulation results shows that the shear stress can be well approximated by a Weibull distribution and that the new scheme provides more accurate predictions than the conventional scheme, particularly under weak wind conditions and strong convective atmospheric conditions.
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