Wall mediated transport in confined spaces: Exact theory for low density

Jepps, O. G., Bhatia, S. K. and Searles, D. J. (2003) Wall mediated transport in confined spaces: Exact theory for low density. Physical Review Letters, 91 12: 126102. doi:10.1103/PhysRevLett.91.126102

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Author Jepps, O. G.
Bhatia, S. K.
Searles, D. J.
Title Wall mediated transport in confined spaces: Exact theory for low density
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
1079-7114
Publication date 2003
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.91.126102
Open Access Status File (Publisher version)
Volume 91
Issue 12
Start page 126102
Total pages 4
Place of publication College Pk, MD, United States
Publisher American Physical Society
Collection year 2003
Language eng
Subject C1
290699 Chemical Engineering not elsewhere classified
780199 Other
Abstract We present a theory for the transport of molecules adsorbed in slit and cylindrical nanopores at low density, considering the axial momentum gain of molecules oscillating between diffuse wall reflections. Good agreement with molecular dynamics simulations is obtained over a wide range of pore sizes, including the regime of single-file diffusion where fluid-fluid interactions are shown to have a negligible effect on the collective transport coefficient. We show that dispersive fluid-wall interactions considerably attenuate transport compared to classical hard sphere theory.
Keyword Physics, Multidisciplinary
Diffusion
Flow
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 01:53:29 EST