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Title: On the onset of surface condensation: formation and transition mechanisms of condensation mode
Author: Sheng, Qiang1; Sun, Jie2; Wang, Qian3; Wang, Wen1; Wang, Hua Sheng1
Source: Scientific Reports
Issued Date: 2016-08-02
Volume: 6
DOI: 10.1038/srep30764
DOC Type: Article
English Abstract: Molecular dynamics simulations have been carried out to investigate the onset of surface condensation. On surfaces with different wettability, we snapshot different condensation modes (no-condensation, dropwise condensation and filmwise condensation) and quantitatively analyze their characteristics by temporal profiles of surface clusters. Two different types of formation of nanoscale droplets are identified, i.e. the formations with and without film-like condensate. We exhibit the effect of surface tensions on the formations of nanoscale droplets and film. We reveal the formation mechanisms of different condensation modes at nanoscale based on our simulation results and classical nucleation theory, which supplements the 'classical hypotheses' of the onset of dropwise condensation. We also reveal the transition mechanism between different condensation modes based on the competition between surface tensions and reveal that dropwise condensation represents the transition states from no-condensation to filmwise condensation.
WOS Headings: Science & Technology
WOS Subject: Multidisciplinary Sciences
WOS Subject Extended: Science & Technology - Other Topics
WOS Keyword Plus: MOLECULAR-DYNAMICS SIMULATION ; DROPWISE CONDENSATION ; SOLID-SURFACES ; NUCLEATION ; WATER ; DROPLET ; SCALES ; FLUIDS ; FLOW
Indexed Type: SCI
Funder: National Natural Science Foundation of China(51406205) ; Beijing Natural Science Foundation(3142021) ; China Scholarship Council ; Engineering and Physical Sciences Research Council (EPSRC) of the UK(EP/L001233/1)
Language: 英语
WOS ID: WOS:000380635700001
Citation statistics:
Content Type: 期刊论文
URI: http://ir.etp.ac.cn/handle/311046/112449
Appears in Collections:中国科学院工程热物理所(论文库)_期刊论文(SCI)

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description.institution: 1.Queen Mary Univ London, Sch Engn & Mat Sci, London E1 4NS, England
2.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
3.Univ Maryland, Dept Astron, College Pk, MD 20742 USA
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