A hybrid passive micromixer capable of efficient mixing over a wide Re range

Mixing of fluids at the microscale poses a variety of challenges, many of which arise from the fact that diffusion is the only available mechanism to achieve mixing in the laminar flow regime. In this work, we propose a novel hybrid micromixer design incorporating (i) an asymmetric serpentine geometry in which the channel width abruptly changes across successive bends (effective at Re > 1), and (ii) slanted barriers on the bottom channel surface (effective at Re < 1). The resulting hybrid design is capable of efficient mixing over a greatly expanded Re range than currently achievable. Copyright 2005 by the Transducer Research Foundation, Inc.

Micro Total Analysis Systems - Proceedings of MicroTAS 2005 Conference: 9th International Conference on Miniaturized Systems for Chemistry and Life Sciences

A hybrid passive micromixer capable of efficient mixing over a wide Re range Conference Paper