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 | MSM 2000
Technical Proceedings of the 2000 International Conference on Modeling and Simulation of Microsystems
Chapter 12: Computational Methods for Microfluidics |
| | A Fast Stokes Solver for Generalized Flow Problems | | Authors: | W. Ye, X. Wang and J.K. White | | Affilation: | Massachusetts Institute of Technology, U.S.A. | | Pages: | 524 - 527 | | Keywords: | unsteady Stokes flow, boundary element methods, precorrected FFT techniques, Microfluidic devices, micro-resonator | | Abstract: | Computing drag forces on geometrically complicated 3-D micromachined structures, such asan entire comb resonator, is a challenging problem. The recently developed FastStokes solver, based on precorrected-FFT accelerated iterative methods, has made analyzing such problems much less expensive. For this reason, there have been several extensions to the program to analyze unsteady ow and to improve computational e?ciency. In this paper we develop several additional extensions to FastStokes. In particular, the direct BEM formulation is used to allow mixed velocity-pressure boundary conditions. We demonstrate the accuracy of the numerical approach by comparing computed results to the results from the indirect BEM formulation and low frequency asymptotic expansions for an oscillating sphere with Dirichlet boundary conditions. We show the ability of this solver to handle problems with mixed boundary conditions. Finally, the drag force on a micro-resonator packaged in the air is presented. |  | View paper | | ISBN: | 0-9666135-7-0 |
| Pages: | 741 |
| Hardcopy: | $100.00 |
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