Large-eddy-simulation study on turbulent particle deposition and its dependence on atmospheric-boundary-layer stability
<p>It is increasingly recognized that atmospheric-boundary-layer stability (ABLS) plays an important role in eolian processes. While the effects of ABLS on particle emission have attracted much attention and been investigated in several studies, those on particle deposition have so far been le...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2022-04-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | https://acp.copernicus.org/articles/22/4509/2022/acp-22-4509-2022.pdf |
| _version_ | 1811313087498682368 |
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| author | X. Yin C. Jiang Y. Shao N. Huang N. Huang J. Zhang J. Zhang |
| author_facet | X. Yin C. Jiang Y. Shao N. Huang N. Huang J. Zhang J. Zhang |
| author_sort | X. Yin |
| collection | DOAJ |
| description | <p>It is increasingly recognized that atmospheric-boundary-layer
stability (ABLS) plays an important role in eolian processes. While the
effects of ABLS on particle emission have attracted much attention and been
investigated in several studies, those on particle deposition have so far
been less well studied. By means of large-eddy simulation, we investigate how
ABLS influences the probability distribution of surface shear stress and
hence particle deposition. Statistical analysis of the model results reveals
that the shear stress can be well approximated using a Weibull
distribution, and the ABLS influences on particle deposition can be estimated
by considering the shear stress fluctuations. The model-simulated particle
depositions are compared with the predictions of a particle-deposition
scheme and measurements, and the findings are then used to improve the
particle-deposition scheme. This research represents a further step towards
developing deposition schemes that account for the stochastic nature of
particle processes.</p> |
| first_indexed | 2024-04-13T10:48:00Z |
| format | Article |
| id | doaj.art-740dc71c1fba4448bbfc49ad9960e8d0 |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-04-13T10:48:00Z |
| publishDate | 2022-04-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-740dc71c1fba4448bbfc49ad9960e8d02022-12-22T02:49:44ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242022-04-01224509452210.5194/acp-22-4509-2022Large-eddy-simulation study on turbulent particle deposition and its dependence on atmospheric-boundary-layer stabilityX. Yin0C. Jiang1Y. Shao2N. Huang3N. Huang4J. Zhang5J. Zhang6Institute for Geophysics and Meteorology, University of Cologne, 50969 Cologne, GermanyInstitute for Geophysics and Meteorology, University of Cologne, 50969 Cologne, GermanyInstitute for Geophysics and Meteorology, University of Cologne, 50969 Cologne, GermanyKey Laboratory of Mechanics on Disaster and Environment in Western China, Lanzhou University, 730000 Lanzhou, ChinaCollege of Civil Engineering and Mechanics, Lanzhou University, 730000 Lanzhou, ChinaKey Laboratory of Mechanics on Disaster and Environment in Western China, Lanzhou University, 730000 Lanzhou, ChinaCollege of Civil Engineering and Mechanics, Lanzhou University, 730000 Lanzhou, China<p>It is increasingly recognized that atmospheric-boundary-layer stability (ABLS) plays an important role in eolian processes. While the effects of ABLS on particle emission have attracted much attention and been investigated in several studies, those on particle deposition have so far been less well studied. By means of large-eddy simulation, we investigate how ABLS influences the probability distribution of surface shear stress and hence particle deposition. Statistical analysis of the model results reveals that the shear stress can be well approximated using a Weibull distribution, and the ABLS influences on particle deposition can be estimated by considering the shear stress fluctuations. The model-simulated particle depositions are compared with the predictions of a particle-deposition scheme and measurements, and the findings are then used to improve the particle-deposition scheme. This research represents a further step towards developing deposition schemes that account for the stochastic nature of particle processes.</p>https://acp.copernicus.org/articles/22/4509/2022/acp-22-4509-2022.pdf |
| spellingShingle | X. Yin C. Jiang Y. Shao N. Huang N. Huang J. Zhang J. Zhang Large-eddy-simulation study on turbulent particle deposition and its dependence on atmospheric-boundary-layer stability Atmospheric Chemistry and Physics |
| title | Large-eddy-simulation study on turbulent particle deposition and its dependence on atmospheric-boundary-layer stability |
| title_full | Large-eddy-simulation study on turbulent particle deposition and its dependence on atmospheric-boundary-layer stability |
| title_fullStr | Large-eddy-simulation study on turbulent particle deposition and its dependence on atmospheric-boundary-layer stability |
| title_full_unstemmed | Large-eddy-simulation study on turbulent particle deposition and its dependence on atmospheric-boundary-layer stability |
| title_short | Large-eddy-simulation study on turbulent particle deposition and its dependence on atmospheric-boundary-layer stability |
| title_sort | large eddy simulation study on turbulent particle deposition and its dependence on atmospheric boundary layer stability |
| url | https://acp.copernicus.org/articles/22/4509/2022/acp-22-4509-2022.pdf |
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