Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 121, Issue 7, Pages 3329-3346Publisher
AIP Publishing
DOI: 10.1063/1.1767994
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We obtain macroscopic equations for average suspension velocity and particle current in a Brownian suspension valid on long time scales for which the memory effects are important. The coefficients in these equations depend solely on local properties of the medium. This formalism allows one to obtain well-defined theoretical expressions for transport coefficients, free of the integrals diverging with the size of the system. As an example, the expression for long-time collective diffusion coefficient is derived and the memory contribution to this coefficient is estimated. (C) 2004 American Institute of Physics.
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