globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.atmosres.2018.05.007
Scopus记录号: 2-s2.0-85047973015
论文题名:
Wind tunnel study on the size distribution of droplets after collision induced breakup of levitating water drops
作者: Szakáll M.; Urbich I.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 213
起始页码: 51
结束页码: 56
语种: 英语
英文关键词: Collision induced breakup ; Fragment size distribution ; Rain evolution
Scopus关键词: Direct numerical simulation ; Numerical models ; Parameterization ; Size distribution ; Wind tunnels ; Coalescence and breakups ; Collision-induced breakup ; Comprehensive analysis ; Fragment size distribution ; High-speed digital cameras ; Laboratory studies ; Water drop ; Wind tunnel experiment ; Drop breakup
英文摘要: Wind tunnel experiments on collisions between drop pairs of 2.5 and 0.5 mm diameter have been performed and the coalescence and breakup events have been recorded by a high-speed digital camera. From the comprehensive analysis of the captured images, the most important parameters utilized in numerical models, such as coalescence efficiency, breakup type, number of fragments and fragment size distribution after breakup were determined. The experimentally obtained parameters have been compared to parameterizations based on earlier laboratory studies of Low and List, and on direct numerical simulations. A very good agreement between experimental results and parameterizations has been found. However, the parameterization based on direct numerical simulation fails to forecast the number of fragments of small sizes. Ultimately, a piece of puzzle is provided to the very important but still incomplete experimental data set of drop-drop collision outcome. © 2018 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108785
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Institute for Atmospheric Physics, University of Mainz, J.-J. Becherweg 21, Mainz, D-55099, Germany; German Weather Service, Frankfurter Str. 135, Offenbach, D-63067, Germany

Recommended Citation:
Szakáll M.,Urbich I.. Wind tunnel study on the size distribution of droplets after collision induced breakup of levitating water drops[J]. Atmospheric Research,2018-01-01,213
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