globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2017MS000930
Scopus记录号: 2-s2.0-85018911257
论文题名:
Eulerian and Lagrangian approaches to multidimensional condensation and collection
作者: Li X; -Y; , Brandenburg A; , Haugen N; E; L; , Svensson G
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2017
卷: 9, 期:2
起始页码: 1116
结束页码: 1137
语种: 英语
英文关键词: Condensation ; Drops ; Flow of gases ; Gravitation ; Refuse collection ; Turbulence ; Asymmetric collection ; Cloud droplets ; Computational performance ; Gravitational accelerations ; La-grangian approaches ; Size spectrum ; Smoluchowski ; Two dimensional turbulence ; Lagrange multipliers ; algorithm ; cloud droplet ; Eulerian analysis ; gas flow ; interpolation ; Lagrangian analysis ; steady flow ; turbulence
英文摘要: Turbulence is argued to play a crucial role in cloud droplet growth. The combined problem of turbulence and cloud droplet growth is numerically challenging. Here an Eulerian scheme based on the Smoluchowski equation is compared with two Lagrangian superparticle (or superdroplet) schemes in the presence of condensation and collection. The growth processes are studied either separately or in combination using either two-dimensional turbulence, a steady flow or just gravitational acceleration without gas flow. Good agreement between the different schemes for the time evolution of the size spectra is observed in the presence of gravity or turbulence. The Lagrangian superparticle schemes are found to be superior over the Eulerian one in terms of computational performance. However, it is shown that the use of interpolation schemes such as the cloud-in-cell algorithm is detrimental in connection with superparticle or superdroplet approaches. Furthermore, the use of symmetric over asymmetric collection schemes is shown to reduce the amount of scatter in the results. For the Eulerian scheme, gravitational collection is rather sensitive to the mass bin resolution, but not so in the case with turbulence. © 2017. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75787
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Department of Meteorology, and Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden; Nordita, KTH Royal Institute of Technology and Stockholm University, Stockholm, Sweden; Swedish e-Science Research Centre, Stockholm, Sweden; Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO, United States; JILA and Department of Astrophysical and Planetary Sciences, University of Colorado, Boulder, CO, United States; Department of Astronomy, Stockholm University, Stockholm, Sweden; SINTEF Energy Research, Trondheim, Norway; Department of Energy and Process Engineering, NTNU, Trondheim, Norway; Global and Climate Dynamics, National Center for Atmospheric Research, Boulder, CO, United States

Recommended Citation:
Li X,-Y,, Brandenburg A,et al. Eulerian and Lagrangian approaches to multidimensional condensation and collection[J]. Journal of Advances in Modeling Earth Systems,2017-01-01,9(2)
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