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Evaporation of Tiny Water Aggregation on Solid Surfaces of Different Wetting Properties.
MedLine Citation:
PMID:  23051060     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The evaporation of a tiny amount of water on the solid surface with different wettability has been studied by molecular dynamics simulations. From nonequilibrium MD simulations, we found that, as the surface changed from hydrophobic to hydrophilic, the evaporation speed did not show a monotonically decrease as intuitively expected, but increased first, and then decreased after reached a maximum value. The analysis on the simulation trajectory and calculation of the surface-water interaction illustrate that the competition between the number of the water molecules on the water-gas surface from where the water molecules can evaporate and the potential barrier to prevent those water molecules from evaporating results in the unexpected behavior of the evaporation. This finding is helpful in understanding the evaporation on the biological surfaces, designing artificial surface of ultra fast water evaporating or preserving water in soil.
Authors:
Shen Wang; Yusong Tu; Rongzheng Wan; Haiping Fang
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-11
Journal Detail:
Title:  The journal of physical chemistry. B     Volume:  -     ISSN:  1520-5207     ISO Abbreviation:  J Phys Chem B     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101157530     Medline TA:  J Phys Chem B     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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