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|Title:||Vapor-induced attraction of floating droplets||Authors:||Liu, Dongdong
|Keywords:||Engineering::Mechanical engineering||Issue Date:||2018||Source:||Liu, D., & Tran, T. (2018). Vapor-induced attraction of floating droplets. The Journal of Physical Chemistry Letters, 9(16), 4771-4775. doi:10.1021/acs.jpclett.8b01742||Journal:||The Journal of Physical Chemistry Letters||Abstract:||Droplets partially submersed in an immiscible liquid pool attract each other. We experimentally study the interaction of floating droplets containing aqueous solution of a volatile liquid. A droplet affects its neighbors by generating a vapor gradient to the surroundings and responds by evaporating asymmetrically over its exposed cap. We show that the induced asymmetric temperature distribution causes a surface tension gradient driving the attracting motion. We highlight that the attracting dynamics starts with an accelerating stage, followed by a decelerating stage. We finally provide a theoretical model that quantitatively captures the interactive forces between droplets and predicts essential features of the attracting motion.||URI:||https://hdl.handle.net/10356/141336||ISSN:||1948-7185||DOI:||10.1021/acs.jpclett.8b01742||Rights:||© 2018 American Chemical Society. All rights reserved.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||MAE Journal Articles|
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