The flow and electric field are simulated numerically with finite volume method first, then large number of nanoparticles and microparticles are injected into the microchannel separately, and these particles are traced with the Lagrangian method. It has been found that particle deposition efficiency in the bend usually decreases first then increases with particle size increasing, and there usually exists a minimum value and it corresponds to the particle diameter of about 3μm, which means that kind of particle can transport longer distance. The electric field doesn’t affect that specified value. This conclusion is helpful to the optimization of the design of microchips.
- Nanotechnology Institute
Comparison of Micro- and Nano-Size Particle Transport and Depositions in 90 Degree Bend Microchannel
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Zhang, K, Lin, J, & Yu, M. "Comparison of Micro- and Nano-Size Particle Transport and Depositions in 90 Degree Bend Microchannel." Proceedings of the ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer. ASME 2009 Second International Conference on Micro/Nanoscale Heat and Mass Transfer, Volume 3. Shanghai, China. December 18–21, 2009. pp. 43-48. ASME. https://doi.org/10.1115/MNHMT2009-18045
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