Spatiotemporal segregation-pattern drift in particle-laden rimming flow

被引：8
|
作者：
Guyez, E. [1 ]
Thomas, P. J. [1 ]
机构：
[1] Univ Warwick, Sch Engn, Fluid Dynam Res Ctr, Coventry CV4 7AL, W Midlands, England
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 07期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1103/PhysRevLett.100.074501
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In a previous publication [O. A. M. Boote and P. J. Thomas, Phys. Fluids 11, 2020 (1999)], we described a new banding pattern developing from particle segregation in particle-laden flow inside a partially fluid-filled, horizontal, rotating cylinder. Here we discuss long-term observations lasting up to several weeks revealing that the system can display an extremely rich spatiotemporal behavior that emerges as the patterns drift very slowly along the axis of rotation. Some of the nondimensional key parameters governing the dynamics are identified.
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页数：4
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