Numerical Study of MHD Effects on Drop Formation in a T-Shaped Microchannel
Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 33104
Numerical Study of MHD Effects on Drop Formation in a T-Shaped Microchannel

Authors: M. Aghajani Haghighi, H. Emdad, K. Jafarpur, A. N. Ziaei

Abstract:

The effect of a uniform magnetic field on the formation of drops of specific size has been investigated numerically in a T-shaped microchannel. Previous researches indicated that the drop sizes of secondary stream decreases, with increasing main stream flow rate and decreasing interfacial tension. In the present study the effect of a uniform magnetic field on the main stream is considered, and it is proposed that by increasing the Hartmann number, the size of the drops of the secondary stream will be decreased.

Keywords: Drop formation, Magnetohydrodynamics, Microchannel, Volume-of-Fluid

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1079134

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1695

References:


[1] H. Jönsson. "Microfluidics for Lab-on-a-Chip Applications," Diploma Thesis for the Degree of Master of Science in Engineering Physics, The Lund Graduate School of Biomedical Research, The Department of Physics Division of Solid State Physics, 2007.
[2] S. K. Hussameddine, J. M. Martin, and W. J. Sang, "Analytical prediction of flow field in magnetohydrodynamic-based microfluidic devices," Journal of Fluids Engineering, vol. 130, no. 9, 2008.
[3] C.G. Yang, Z.R. Xu, J.H. Wang, "Manipulation of Droplets in Microfluidic Systems, " Trends in Analytical Chemistry, Vol. 29, No. 2, pp. 141-157, 2010.
[4] L. Shui, C.T. Eijkel, A. van den Berg, "Multiphase Flow in Micro- and Nanochannels," Sensors and Actuators B 121, pp. 263-276, 2007.
[5] Denis Gueyffier, Jie Li, Ali Nadim, Ruben Scardovelli and Stephane Zaleski, "Volume-of-fluid interface tracking with smoothed surface stress methods for three-dimensional flows," J. Comput. Phys, vol. 152, no. 2, pp. 423-456, 1999.
[6] J.U. Brackbill, D.B. Kothe, C. Zemach, "A continuum method for modeling surface tension," J. Comput. Phys, vol. 100, pp. 335-354, 1992.
[7] W. F. Hughes, F. J Young, "The Electromagnetodynamics of Fluids," Carnegie Institute of Technology, 1966.
[8] J.L. Liow, "Numerical Simulation of Drop Formation in a T-shaped Microchannel," 15th Australasian Fluid Mechanics Conference, The University of Sydney, Sydney, Australia, 2004.
[9] T. Nisisako, T. Torii, T. Higuchi, "Droplet Formation in a Microchannel Network," International Symposium on Microchemistry and Microsystems (ISMM 2001), Kawasaki, Japan, 2001.