Understanding Turbulence in Active Microscale Mixers

We are studying the effects of a variable electric field to drive mixing in a micromixer and the possible generation of turbulence in the process. Iso-surfaces of velocity are shown here, where blue indicates a low speed and red a high speed. We are also examining entropy generation rates due to advection and diffusion to understand the interplay of irreversibility increase due to entropy generation and improved mixing. This work is supported by National Science Foundation grant ACI-#1429702.