Evolution of particle-velocity correlations in sedimentation

被引：62

作者：

Guazzelli, É ^{[1
]}

机构：

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

来源：

PHYSICS OF FLUIDS | 2001年 / 13卷 / 06期

关键词：

D O I：

10.1063/1.1369606

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The velocity field of a dilute monodisperse sedimenting suspension is measured as a function of time with the Eulerian particle image velocimetry technique. The sedimentation process is observed to be dominated by vortices of the size of the container in the initial moments after the cessation of mixing, which diminish with time and seem to reach an ultimate size approximate to 15-20 mean interparticle distances. (C) 2001 American Institute of Physics.

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页码：1537 / 1540

页数：4

相关论文

共 10 条

[1] Screening mechanisms in sedimentation [J].

Brenner, MP .

PHYSICS OF FLUIDS, 1999, 11 (04) :754-772

[2] VARIANCE IN THE SEDIMENTATION SPEED OF A SUSPENSION [J].

CAFLISCH, RE ;

LUKE, JHC .

PHYSICS OF FLUIDS, 1985, 28 (03) :759-760

[3] QUANTITATIVE EXPERIMENTAL-STUDY OF THE FREE DECAY OF QUASI-2-DIMENSIONAL TURBULENCE [J].

CARDOSO, O ;

MARTEAU, D ;

TABELING, P .

PHYSICAL REVIEW E, 1994, 49 (01) :454-461

[4]

Hinch E., 1988, Disorder and Mixing: Convection, Diffusion and Reaction in Random Materials and Processes, P153

[5] SCREENING IN SEDIMENTING SUSPENSIONS [J].

KOCH, DL ;

SHAQFEH, ESG .

JOURNAL OF FLUID MECHANICS, 1991, 224 :275-303

[6] Sedimentation of homogeneous suspensions of non-Brownian spheres [J].

Ladd, AJC .

PHYSICS OF FLUIDS, 1997, 9 (03) :491-499

[7] Screened and unscreened phases in sedimenting suspensions [J].

Levine, A ;

Ramaswamy, S ;

Frey, E ;

Bruinsma, R .

PHYSICAL REVIEW LETTERS, 1998, 81 (26) :5944-5947

[8] EFFECT OF THE VESSEL SIZE ON THE HYDRODYNAMIC DIFFUSION OF SEDIMENTING SPHERES [J].

NICOLAI, H ;

GUAZZELLI, E .

PHYSICS OF FLUIDS, 1995, 7 (01) :3-5

[9] Long-range correlations in sedimentation [J].

Segre, PN ;

Herbolzheimer, E ;

Chaikin, PM .

PHYSICAL REVIEW LETTERS, 1997, 79 (13) :2574-2577

[10]

TONG P, 1998, PHYS REV E, V58, P6931