Modeling mixture transport at the nanoscale: Departure from existing paradigms

Bhatia, Suresh K. and Nicholson, David (2008) Modeling mixture transport at the nanoscale: Departure from existing paradigms. Physical Review Letters, 100 23: 236103-1-236103-4. doi:10.1103/PhysRevLett.100.236103

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Author Bhatia, Suresh K.
Nicholson, David
Title Modeling mixture transport at the nanoscale: Departure from existing paradigms
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
Publication date 2008-06-01
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.100.236103
Open Access Status File (Publisher version)
Volume 100
Issue 23
Start page 236103-1
End page 236103-4
Total pages 4
Editor G. Basbas
J. Sandweiss
R. B. Schuhmann
S. G. Brown
Place of publication College Park, Md, U.S.A
Publisher American Physical Society
Collection year 2009
Language eng
Subject C1
960202 Atmospheric Processes and Dynamics
0904 Chemical Engineering
Abstract We present a novel theory of mixture transport in nanopores, which represents wall effects via a species-specific friction coefficient determined by its low density diffusion coefficient. Onsager coefficients from the theory are in good agreement with those from molecular dynamics simulation, when the nonuniformity of the density distribution is included. It is found that the commonly used assumption of a uniform density in the momentum balance is in serious error, as is also the traditional use of a mixture center of mass based frame of reference.
Q-Index Code C1
Q-Index Status Confirmed Code

 
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Created: Wed, 08 Apr 2009, 02:43:38 EST by Katherine Montagu on behalf of School of Chemical Engineering