Micro-Pumps With No-Moving-Part Valves
University of Washington, Seattle, U.S.A.

Dept of Mechanical Engineering: Fred K. Forster, Ron L. Bardell, Nigel R. Sharma,
Robert J. Penney*, Chris Morris, Ling-Sheng Jang, Andrew Kiehl
Dept of Electrical Engineering: Marty A. Afromowitz, Shuliang Li
Sponser: Defense Advanced Research Projects Agency.

* Former group members.

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Potential valve designs are first tested by computer simulation using a computational fluid dynamics program which plots arrows to display local fluid velocity. Promising valve designs will have more rotational and convergent flow patterns in reverse flow through the valve than in forward flow. Maximizing these differences in flow characteristics results in more efficient valves.
CFD Simulation
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