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 | Nanotech 2001 Vol. 1
Technical Proceedings of the 2001 International Conference on Modeling and Simulation of Microsystems
Chapter 6: Micro and Bio Fluidics |
| | Simulation of Droplet Formation in Micromixers | | Authors: | S. Hardt, F. Schönfeld, F. Weise, C. Hofmann and W. Ehrfeld | | Affilation: | Institut für Mikrotechnik, Germany | | Pages: | 223 - 226 | | Keywords: | micromixers, droplet formation, free surface flows | | Abstract: | Droplet formation in micromixers developed by the Institute of Microtechnology Mainz (IMM) is investigated by methods of computational fluid dynamics (CFD). The CFD results are compared to experimental data obtained with transparent micromixers made from photosensitive glass. Preceding the 3D simulations, the decay of liquid cylinders is studied as a test case. Subsequently, the flow patterns of a binary system of immiscible liquids in a interdigital micromixer are investigated. It is found that in case of equal volume flows the simulation results on the decay wavelength and on droplet and lamellae diameters agree very well with experimental data. However, the agreement between simulations and experiments is less convincing in the case of a 1:4 volume flow ratio. Further and more detailed studies for a broader range of operation and material parameters are ongoing. |  | View paper | | ISBN: | 0-9708275-0-4 |
| Pages: | 638 |
| Hardcopy: | $100.00 |
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