Article Dans Une Revue Physical Review E : Statistical, Nonlinear, and Soft Matter Physics [2001-2015] Année : 2010

Hydrodynamic attraction of immobile particles due to interfacial forces

Résumé

Applying the method of reflections, we derive the flow pattern around a confined colloidal particle with quasislip conditions at its surface, in powers of the ratio a/h of particle radius and wall distance. The lowest order corresponds to a single reflection at the confining wall. Significant corrections occur at higher order: the linear term in a/h modifies the amplitudes of the well-known one-reflection approximation, whereas new features arise in quadratic order. Our results agree with recent experiments where thermo-osmosis drives hydrodynamic attractive forces in confined colloids.

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hal-00486901 , version 1 (27-05-2010)

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Julien Morthomas, Alois Würger. Hydrodynamic attraction of immobile particles due to interfacial forces. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics [2001-2015], 2010, 81, pp.051405. ⟨10.1103/PhysRevE.81.051405⟩. ⟨hal-00486901⟩

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