72th Annual Meeting of the APS Division of Fluid Dynamics (November 23, 2019 — November 26, 2019)

P0030: Smashed into vapor

Authors
  • Nathan Speirs, King Abdullah University of Science and Technology
  • Kenneth Langley, King Abdullah University of Science and Technology
  • Tadd Truscott, Utah State University
  • Sigurdur Thoroddsen, King Abdullah University of Science and Technology
DOI: https://doi.org/10.1103/APS.DFD.2019.GFM.P0030

An object entering a body of water can create a large air-filled cavity.  This water-entry behavior has received a lot of attention in recent studies; however, before this main large cavity forms, the initial pressure wave generated by the contact between the object and the surface of the water can generate vaporous cavitation bubbles.  Here we show how these much smaller bubbles form and collapse occuring in less than 100 microseconds.  When this type of cavitation bubble collapses on a solid surface damage can occur.

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