Flow rate effect on droplet control in a co-flowing microfluidic device

被引：84
作者：
Hong, Yiping [1 ]
Wang, Fujun [1 ]
机构：
[1] China Agr Univ, Dept Fluid Machinery & Fluid Engn, Beijing 100083, Peoples R China
来源：
MICROFLUIDICS AND NANOFLUIDICS | 2007年 / 3卷 / 03期
基金：
中国国家自然科学基金;
关键词：
microdroplet; monodisperse; flow rate effect; droplet patterns; co-flowing system;
D O I：
10.1007/s10404-006-0134-3
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Flow rate effect on droplet formation in a co-flowing microfluidic device is investigated numerically. Transition conditions are discovered that the droplet size is either approximately independent of or strongly dependent on the flow rate ratio. This phenomenon is explained by the relation between strain rate and droplet diameter. Regions of four drop patterns are demarcated and conditions that give polydisperse drops are described, which is helpful to assure the accuracy and efficiency in droplet production.
引用
收藏
页码：341 / 346
页数：6
相关论文
共 21 条
  • [1] Dripping-jetting transitions in a dripping faucet
    Ambravaneswaran, B
    Subramani, HJ
    Phillips, SD
    Basaran, OA
    [J]. PHYSICAL REVIEW LETTERS, 2004, 93 (03) : 034501 - 1
  • [2] Drop formation in a co-flowing ambient fluid
    Cramer, C
    Fischer, P
    Windhab, EJ
    [J]. CHEMICAL ENGINEERING SCIENCE, 2004, 59 (15) : 3045 - 3058
  • [3] Microchannel fabrication in PMMA based on localized heating by nanojoule high repetition rate femtosecond pulses
    Day, D
    Gu, M
    [J]. OPTICS EXPRESS, 2005, 13 (16): : 5939 - 5946
  • [4] Ordered and disordered patterns in two-phase flows in microchannels
    Dreyfus, R
    Tabeling, P
    Willaime, H
    [J]. PHYSICAL REVIEW LETTERS, 2003, 90 (14) : 4
  • [5] Gad-elHak Mohamed, 2000, Flow Control
  • [6] Perfectly monodisperse microbubbling by capillary flow focusing -: art. no. 274501
    Gañán-Calvo, AM
    Gordillo, JM
    [J]. PHYSICAL REVIEW LETTERS, 2001, 87 (27)
  • [7] Suppression of capillary instability of a polymeric thread via parallel plate confinement
    Son, Y
    Martys, NS
    Hagedorn, JG
    Migler, KB
    [J]. MACROMOLECULES, 2003, 36 (15) : 5825 - 5833
  • [8] Comparative study of fluid dispensing modeling
    Hong, YP
    Li, HX
    [J]. IEEE TRANSACTIONS ON ELECTRONICS PACKAGING MANUFACTURING, 2003, 26 (04): : 273 - 280
  • [9] A numerical study of two-phase Stokes flow in an axisymmetric flow-focusing device
    Jensen, Mads Jakob
    Stone, Howard A.
    Bruus, Henrik
    [J]. PHYSICS OF FLUIDS, 2006, 18 (07)
  • [10] Applied physics - Droplet control for microfluidics
    Joanicot, M
    Ajdari, A
    [J]. SCIENCE, 2005, 309 (5736) : 887 - 888
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