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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 |
| | Microflows with Moving Boundaries: Experiment and Simulation | | Authors: | C. Maier and E.P. Hofer | | Affilation: | University of Ulm, Germany | | Pages: | 258 - 261 | | Keywords: | microfluidic systems, free surface flow, high-speed visualization, CFD code evaluation | | Abstract: | Surface forces and capillary effects can play a dominant role in fluidic microsystems. Therefore it is crucial for simulations to use accurate numerical approaches [1]. Furthermore experimental data gained from such surface dominated systems can be used to test different numerical methods for dealing with moving boundary problems. This paper presents the real-time visualization of collisions of water microdroplets on an inclined steal plate. This model experiment shows the features of wetting and dynamic contact angles. The frame of 8 images recorded with a multi channel high-speed camera coupled to an optical microscope is treated by specially developed digital image processing tools to correct geometrical distortions and to extract object features. The above mentioned experiment is compared to the simulation results obtained with a commercial code [2] which uses the VOF algorithm [3]. |  | View paper | | ISBN: | 0-9708275-0-4 |
| Pages: | 638 |
| Hardcopy: | $100.00 |
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