Droplet formation in a co-flowing microfluidic device is investigated with the lattice Boltzmann method (LBM). This LBM code was validated with two benchmarks such as Poiseuille flow through a straight duct and Taylor deformation on droplets between two shearing plates. A comparison of experimental droplet formation in a microchannel (Cramer et al, 2004) showed good quantitative agreement with our modeling results. With this code, a large number of simulations were carried out with various inlet flow rate ratios at various Re and various interfacial tensions in the co-flowing microfluidic system. All resulting droplet sizes are discussed quantitatively with the nondimensional parameters, which is helpful for droplet control in different co-flowing devices.
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ASME/JSME 2007 5th Joint Fluids Engineering Conference
July 30–August 2, 2007
San Diego, California, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4289-4
PROCEEDINGS PAPER
Lattice Boltzmann Simulations of Droplet Formation in a Co-Flowing Microchannel
Long Sang,
Long Sang
China Agricultural University, Beijing, China
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Yiping Hong,
Yiping Hong
China Agricultural University, Beijing, China
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Fujun Wang
Fujun Wang
China Agricultural University, Beijing, China
Search for other works by this author on:
Long Sang
China Agricultural University, Beijing, China
Yiping Hong
China Agricultural University, Beijing, China
Fujun Wang
China Agricultural University, Beijing, China
Paper No:
FEDSM2007-37445, pp. 415-421; 7 pages
Published Online:
March 30, 2009
Citation
Sang, L, Hong, Y, & Wang, F. "Lattice Boltzmann Simulations of Droplet Formation in a Co-Flowing Microchannel." Proceedings of the ASME/JSME 2007 5th Joint Fluids Engineering Conference. Volume 2: Fora, Parts A and B. San Diego, California, USA. July 30–August 2, 2007. pp. 415-421. ASME. https://doi.org/10.1115/FEDSM2007-37445
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