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240611s2024 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.4c01655
|2 doi
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Liu, Xuanchen
|e verfasserin
|4 aut
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|a Molecular Dynamics Simulation of Dual Nanodroplet Impacts on a Cylindrical Surface
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|c 2024
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 18.06.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Droplet impact behavior is ubiquitous in various fields. However, the dynamics and spreading mechanisms of micro- and nanoscale droplet impact on curved surfaces, particularly in the case of multiple droplets, have yet to be fully elucidated. In this study, molecular dynamics (MD) methods are employed to investigate the dynamic evolution of double nanodroplet impact on a nano cylindrical wall. The effects of droplet spacing, initial impact velocity, and wall wettability on droplet impact characteristics are analyzed. The results demonstrate that there are five impact modes of nanoscale double-droplet impacts with nanocylinders: spreading-partial wrapping-splitting-complete detachment (SPSC), spreading-complete wrapping-complete attachment (SCC), spreading-partial wrapping-complete attachment (SPC), spreading-partial wrapping-partial attachment (SPP), and spreading-partial wrapping-fragmentation-partial attachment (SPFP). The droplet spacing has an insignificant effect on the impact modes but affects the droplets' spreading shape in both the axial and radial directions. The initial velocity and wall wettability have significant impacts on the droplet impact modes and liquid film spreading characteristics. As the initial velocity increases, the liquid film's radial and axial spreading distances gradually increase. Under hydrophobic conditions, the spreading of the droplet is dominant in the radial direction, while under hydrophilic conditions, the spreading is dominant in the axial direction. Properly reducing the droplet spacing, increasing the impact velocity, and enhancing the wall hydrophobicity can promote detaching the droplet from the cylindrical wall
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|a Journal Article
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1 |
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|a Liu, Liansheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Rongji
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xie, Jun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Yadong
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 40(2024), 24 vom: 18. Juni, Seite 12828-12841
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|x 1520-5827
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|g volume:40
|g year:2024
|g number:24
|g day:18
|g month:06
|g pages:12828-12841
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| 856 |
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|u http://dx.doi.org/10.1021/acs.langmuir.4c01655
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