76th Annual Meeting of the APS Division of Fluid Dynamics (November 19, 2023 — November 21, 2023)

V0091: Cavitation Causes Brain Injury

  • Qifu Wang, Villanova University
  • David Bates, Villanova University
  • Ji Lang, Southeast University, China
  • Rungun Nathan, Pennsylvania State University Berks
  • Qianhong Wu, Villanova University
DOI: https://doi.org/10.1103/APS.DFD.2023.GFM.V0091

In this video, we use high-speed photography to capture the formation and collapse of cavitation bubbles near the contrecoup regions when a sudden impact hits an artificial transparent head surrogate. This cavitation causes brain surface damage and sends a shockwave through the brain matter. This novel experiment reveals the hidden dynamics of soft brain matter motion and deformation, challenging current brain injury criteria that may underestimate the risks of head collisions.

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