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DOI | 10.5194/acp-21-12317-2021 |
Impact of high- And low-vorticity turbulence on cloud-environment mixing and cloud microphysics processes | |
Kumar B.; Ranjan R.; Yau M.-K.; Bera S.; Rao S.A. | |
发表日期 | 2021 |
ISSN | 1680-7316 |
起始页码 | 12317 |
结束页码 | 12329 |
卷号 | 21期号:16 |
英文摘要 | Turbulent mixing of dry air affects the evolution of the cloud droplet size spectrum via various mechanisms. In a turbulent cloud, high- and low-vorticity regions coexist, and inertial clustering of cloud droplets can occur in low-vorticity regions. The nonuniformity in the spatial distribution of the size and in the number of droplets, variable vertical velocity in vortical turbulent structures, and dilution by entrainment/mixing may result in spatial supersaturation variability, which affects the evolution of the cloud droplet size spectrum via condensation and evaporation processes. To untangle the processes involved in mixing phenomena, a 3D direct numerical simulation of turbulent mixing followed by droplet evaporation/condensation in a submeter-sized cubed domain consisting of a large number of droplets was performed in this study. The analysis focused on the thermodynamic and microphysical characteristics of the droplets and the flow in high- and low-vorticity regions. The impact of vorticity generation in turbulent flows on mixing and cloud microphysics is illustrated. © 2021 Bipin Kumar et al. |
语种 | 英语 |
scopus关键词 | cloud droplet; cloud microphysics; spatial distribution; thermodynamics; turbulence; turbulent mixing; vorticity |
来源期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/246648 |
作者单位 | Indian Institute of Tropical Meteorology, Ministry of Earth Sciences, Pashan, Pune, 411008, India; Department of Atmospheric and Space Science, Savitribai Phule Pune University, Pune, 411007, India; Department of Atmospheric and Ocean Science, McGill University, Montreál, QC H3A 0B9, Canada |
推荐引用方式 GB/T 7714 | Kumar B.,Ranjan R.,Yau M.-K.,et al. Impact of high- And low-vorticity turbulence on cloud-environment mixing and cloud microphysics processes[J],2021,21(16). |
APA | Kumar B.,Ranjan R.,Yau M.-K.,Bera S.,&Rao S.A..(2021).Impact of high- And low-vorticity turbulence on cloud-environment mixing and cloud microphysics processes.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(16). |
MLA | Kumar B.,et al."Impact of high- And low-vorticity turbulence on cloud-environment mixing and cloud microphysics processes".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.16(2021). |
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