74th Annual Meeting of the APS Division of Fluid Dynamics (November 21, 2021 — November 23, 2021)

V0098: Shock-induced bubble jets seen in a new light

  • Guillaume Thomas Bokman, ETH Zürich
  • Outi Supponen, ETH Zürich
DOI: https://doi.org/10.1103/APS.DFD.2021.GFM.V0098

The study of bubbles and their dynamics under acoustic driving follows many applications in the biological, pharmaceutical, and medical fields. When hit by a travelling pressure waves such as acoustic transients or ultrasound waves, they sometimes can produce needle-like high-speed jets in the direction of the wave propagation as a result of local flow-focusing. To better understand this phenomenon and its implication to the various relevant applications where such jets may offer a fluidic transport mechanism, we experimentally study acoustically collapsed micro-bubbles and the resulting micro-fluidic flows at a wide range of scales using ultra-high-speed measurements.

This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License. Any reuse must credit the author(s) and provide a link back to this page.