Harmonically bound Brownian motion in flowing fluids |
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| Authors: | C Van Den Broeck JM Sancho M San Miguel |
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| Institution: | Vrije Universiteit Brussel, Departement Natuurkunde, Pleinlaan 2, 1050 Brussel, Belgium;Universidad de Barcelona, Departamento de Física Teórica, Diagonal, 647, Barcelona 28, Spain |
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| Abstract: | The effect of harmonic forces on Brownian motion in linear shear flow is investigated including a short and intermediate time analysis. A diffusion regime exists for long times if the harmonic forces restrict the motion only in one direction. A series expansion for the effective longitudinal diffusion coefficient is derived for a model of nonlinear uniaxial flows. |
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