Gas Enrichment at Liquid-Wall Interfaces


Dammer, Stephan M. and Lohse, Detlef (2006) Gas Enrichment at Liquid-Wall Interfaces. Physical Review Letters, 96 (20). p. 206101. ISSN 0031-9007

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Abstract:Molecular dynamics simulations of Lennard-Jones systems are performed to study the effects of dissolved gas on liquid-wall and liquid-gas interfaces. Gas enrichment at walls, which for hydrophobic walls can exceed more than 2 orders of magnitude when compared to the gas density in the bulk liquid, is observed. As a consequence, the liquid structure close to the wall is considerably modified, leading to an enhanced wall slip. At liquid-gas interfaces gas enrichment which reduces the surface tension is found.
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Copyright:© 2006 American Physical Society
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