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Proceedings Paper

Simulation of fluid-structure interaction in micropumps by coupling of two commercial finite element programs
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Paper Abstract

This paper deals with the simulation of the fluid-structure interaction phenomena in micropumps. The proposed solution approach is based on external coupling of two different solvers, which are considered here as `black boxes'. Therefore, no specific intervention is necessary into the program code, and solvers can be exchanged arbitrarily. For the realization of the external iteration loop, two algorithms are considered: the relaxation-based Gauss-Seidel method and the computationally more extensive Newton method. It is demonstrated in terms of a simplified test case, that for rather weak coupling, the Gauss-Seidel method is sufficient. However, by simply changing the considered fluid from air to water, the two physical domains become strongly coupled, and the Gauss-Seidel method fails to converge in this case. The Newton iteration scheme must be used instead.

Paper Details

Date Published: 10 September 1998
PDF: 11 pages
Proc. SPIE 3515, Microfluidic Devices and Systems, (10 September 1998); doi: 10.1117/12.322086
Show Author Affiliations
Andreas Klein, Dresden Univ. of Technology (Germany)
Gerald Gerlach, Dresden Univ. of Technology (Germany)

Published in SPIE Proceedings Vol. 3515:
Microfluidic Devices and Systems
A. Bruno Frazier; Chong Hyuk Ahn, Editor(s)

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