Spreading fronts and fluctuations in sedimentation

被引：68

作者：

Bergougnoux, L

Ghicini, S

Guazzelli, É

Hinch, J

机构：

[1] Polytech Marseille, Inst Univ Syst Therm Ind, CNRS, UMR 6595, F-13453 Marseille 13, France

[2] Univ Cambridge, Dept Appl Math & Theoret Phys, Cambridge CB3 9EW, England

来源：

PHYSICS OF FLUIDS | 2003年 / 15卷 / 07期

关键词：

D O I：

10.1063/1.1578486

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A diffuse interface or "front" at the top of the suspension is investigated experimentally and numerically. The width of the front is found to grow linearly in time, mainly due to a polydispersity of particle size in the very dilute experiments, and due only to fluctuations in particle density in the simulations. Away from the front, the fluctuations in the particle velocities are found not to decay. (C) 2003 American Institute of Physics.

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页码：1875 / 1887

页数：13

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