Acoustofluidic micromixer from N. Nama, P.-H. Huang, T. J. Huang, and F. Costanzo, ``Investigation of micromixing by acoustically oscillated sharp-edges,'' Biomicrofluidics, 10 (2016), pp. 024124–1–024124–17. DOI: 10.1063/1.4946875; PMID: 27158292; PMCID: PMC4833753.
The details of the theoretical framework are in N. Nama, P.-H. Huang, T. J. Huang, and F. Costanzo, "Investigation of acoustic streaming patterns around oscillating sharp edges," Lab on a Chip, 14 (2014), pp. 2824–2836. DOI: 10.1039/c4lc00191e; PMID: 24903475; PMCID: PMC4096312.
A much improved analytical and numerical framework is in N. Nama, T. J. Huang, and F. Costanzo, "Acoustic streaming: A Lagrangian–Eulerian perspective," Journal of Fluid Mechanics, 825 (2017), pp. 600–630. DOI: 10.1017/jfm.2017.338.