Numerical Analysis of Junction Point Pressure during Droplet Formation in Y-Junction Microchannel

Article Preview

Abstract:

Junction point pressure changes during droplet formation in Y-junction microchannels with differed Y-angles, wetting property and capillary number of the liquid by using a three dimensional numerical simulation. The pressure of the junction point fluctuates throughout the droplet formation process, and it can be used to depict exactly and directly different stages of droplet in microchannels. And the pressure of junctions with different Y-angles of microchannel, different contact angles of dispersed phase with the surface, and different capillary numbers of continuous phase could thus be investigated via the droplet formation mechanism.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

241-246

Citation:

Online since:

December 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] S.B. Li, Y.G. Ma, C.Y. Zhu, T.T. Tao and H.Z. Li: Turbulent characteristic of liquid around a chain of bubbles in non-newtonian fluid. Chin. J. Chem. Eng. Vol. 20(5) (2012), pp.883-888.

DOI: 10.1016/s1004-9541(12)60413-3

Google Scholar

[2] H.W. Shao, Y.C. Lü, K. Wang and G.S. Luo: An experimental study of liquid-liquid microflow pattern maps accompanied with mass transfer. Chin. J. Chem. Eng. Vol. 20(1) (2012), pp.18-26.

DOI: 10.1016/s1004-9541(12)60358-9

Google Scholar

[3] G.N. Doku, W. Verboom, D.N. Reinhoudt, A. van den Berg: On-microchip multiphase chemistry-a review of microreactor design principles and reagent contacting modes. Tetrahedron. Vol. 61(11) (2005), pp.2733-2742.

DOI: 10.1016/j.tet.2005.01.028

Google Scholar

[4] M. Wӧrner: Numerical modeling of multiphase flows in microfluidics and micro process engineering: a review of methods and applications. Microfluid Nanofluid. Vol. 12 (2012), pp.841-886.

Google Scholar

[5] Y. Yan, D. Guo and S.Z. Wen. Numerical simulation of junction point pressure during droplet formation in a microfluidic T-junction. Chemical Engineering Science. Vol. 84 (2012), pp.591-601.

DOI: 10.1016/j.ces.2012.08.055

Google Scholar

[6] F.J.M. DeMenech, P. Garstecki and H.A. Stone: Transition from squeezing to dripping in a microfluidic T-shaped junction. J. Fluid. Mech. Vol. 595 (2008), p.141–161.

DOI: 10.1017/s002211200700910x

Google Scholar

[7] J. Sivasamy, T.N. Wong, N.T. Nguyen and L.T.H. Kao: An investigation on the mechanism of droplet formation in a microfluidic T-junction. Microfluidics and Nanofluidics. Vol. 11 (2011), pp.1-10.

DOI: 10.1007/s10404-011-0767-8

Google Scholar

[8] X.B. Li, F.C. Li, J.C. Yang, H. Kinoshita, M. Oishi and M. Oshima: Study on the mechanism of droplet formation in T-junction microchannel. Chem. Eng. Sci. Vol. 69 (1) (2012), pp.340-351.

DOI: 10.1016/j.ces.2011.10.048

Google Scholar

[9] W. Lee, L.M. Walker and S.L. Anna: Role of geometry and fluid properties in droplet and thread formation processes in planar flow focusing. Physics of Fluids. Vol. 21(3) (2009), p.032103.

DOI: 10.1063/1.3081407

Google Scholar

[10] H.H. Liu, Y.H. Zhang: Droplet formation in a T-shaped microfluidic junction. Journal of Applied Physics. Vol. 106(3) (2009), p.034906.

DOI: 10.1063/1.3187831

Google Scholar