Velocity fluctuations of initially stratified sedimenting spheres

被引：16
|
作者：
Tee, Shang-You [1 ]
Mucha, P. J.
Brenner, M. P.
Weitz, D. A.
机构：
[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA
[2] Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA
[3] Univ N Carolina, Dept Math, Chapel Hill, NC 27599 USA
[4] Univ N Carolina, Inst Adv Mat, Chapel Hill, NC 27599 USA
来源：
PHYSICS OF FLUIDS | 2007年 / 19卷 / 11期
基金：
美国国家航空航天局; 美国国家科学基金会;
关键词：
D O I：
10.1063/1.2806597
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The study of velocity fluctuations in the sedimentation of spheres is complicated by the time evolution of the underlying particle distribution, both at the microscale and in the bulk. We perform a series of experiments and simulations to isolate the effect of an initial, stable stratification in the particle concentration. The directly observed dependence of velocity fluctuations on stratification agrees with a previously obtained scaling theory. (c) 2007 American Institute of Physics.
引用
收藏
页数：5
相关论文
共 50 条
12345