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Article Dans Une Revue Physical Review E : Statistical, Nonlinear, and Soft Matter Physics Année : 2008

Kinetic study of coupled field-induced aggregation and sedimentation processes arising in magnetic fluids

Résumé

In this work, the kinetics of coupled aggregation and sedimentation processes arising in magnetic fluids has been studied. Aggregation was induced applying a constant uniaxial magnetic field. The time evolution of the cluster-size distribution and the weight-average chain length was monitored using optical microscopy and digital image analysis. The experimental results are compared with the corresponding solutions of Smoluchowski's equation. For this purpose, a recently proposed aggregation kernel was employed. When sedimentation effects are taken into account, the fits improve especially at long aggregation times.
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Dates et versions

hal-00345976 , version 1 (10-12-2008)

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F. Martínez-Pedrero, A. El-Harrak, J. C. Fernández-Toledano, M. Tirado-Miranda, Jean Baudry, et al.. Kinetic study of coupled field-induced aggregation and sedimentation processes arising in magnetic fluids. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2008, 78, pp.011403. ⟨10.1103/PhysRevE.78.011403⟩. ⟨hal-00345976⟩
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