Competition between Local Collisions and Collective Hydrodynamic Feedback Controls Traffic Flows in Microfluidic Networks

被引:49
作者
Belloul, M. [1 ]
Engl, W. [2 ]
Colin, A. [2 ]
Panizza, P. [1 ]
Ajdari, A. [3 ]
机构
[1] Univ Rennes 1, IPR, CNRS, UMR 6251, F-35042 Rennes, France
[2] Univ Bordeaux 1, LOF, CNRS Rodia 5258, F-33608 Pessac, France
[3] CNRS Gulliver, UMR 7083, F-75231 Paris, France
关键词
D O I
10.1103/PhysRevLett.102.194502
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
By studying the repartition of monodisperse droplets at a simple T junction, we show that the traffic of discrete fluid systems in microfluidic networks results from two competing mechanisms, whose significance is driven by confinement. Traffic is dominated by collisions occurring at the junction for small droplets and by collective hydrodynamic feedback for large ones. For each mechanism, we present simple models in terms of the pertinent dimensionless parameters of the problem.
引用
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页数:4
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