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Anomalous Flow Behavior in Nanochannels: A Molecular Dynamics Study

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Title: Anomalous Flow Behavior in Nanochannels: A Molecular Dynamics Study
Author(s): Murad, Sohail; Luo, Lin; Chu, Liang-Yin
Abstract: We report molecular dynamics simulations of flow of water in nanochannels with a range of surface wettability characteristics (hydrophobic to strongly hydrophilic) and driving forces (pressures). Our results show apparently anomalous behavior. At low pressures, the rate is higher in nanochannels with hydrophilic surfaces than that with hydrophobic surfaces; however, with high pressure driven flow we observe opposite trends. This apparently anomalous behavior can be explained on the basis of molecular thermodynamics and fluid mechanics considerations. Understanding such behavior is important in many nanofluidic devices such as nanoreactors, nanosensors, and nanochips that are increasingly being designed and used.
Issue Date: 2010-06-07
Publisher: Elsevier
Citation Info: Murad, S., Luo, L., & Chu, L. Y. 2010. Anomalous flow behavior in nanochannels: A molecular dynamics study. Chemical Physics Letters, 492(4-6): 285-289. DOI: 10.1016/j.cplett.2010.04.070
Type: Article
Description: Postprint version of article may differ from published version. The definitive version is available through Elsevier at DOI: 10.1016/j.cplett.2010.04.070
ISSN: 0009-2614
Date Available in INDIGO: 2011-01-09

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