Title:
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Diffusive transport in spatially periodic hydrodynamic flows
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Author:
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Sagués i Mestre, Francesc; Horsthemke, W.
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Other authors:
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Universitat de Barcelona |
Abstract:
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We calculate the effective diffusion coefficient in convective flows which are well described by one spatial mode. We use an expansion in the distance from onset and homogenization methods to obtain an explicit expression for the transport coefficient. We find that spatially periodic fluid flow enhances the molecular diffusion D by a term proportional to D-1. This enhancement should be easy to observe in experiments, since D is a small number. |
Subject(s):
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-Teoria del transport -Fluctuacions (Física) -Mecànica de fluids -Transport processes -Fluctuation phenomena -Fluid mechanics |
Rights:
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(c) The American Physical Society, 1986
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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