Structure and dynamics of shock-induced nanobubble collapse in water

M. Vedadi, A. Choubey, K. Nomura, R. K. Kalia, A. Nakano, P. Vashishta, Adri Van Duin

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Abstract

Shock-induced collapse of nanobubbles in water is investigated with molecular dynamics simulations based on a reactive force field. We observe a focused jet at the onset of bubble shrinkage and a secondary shock wave upon bubble collapse. The jet length scales linearly with the nanobubble radius, as observed in experiments on micron-to-millimeter size bubbles. Shock induces dramatic structural changes, including an ice-VII-like structural motif at a particle velocity of 1km/s. The incipient ice VII formation and the calculated Hugoniot curve are in good agreement with experimental results.

Original languageEnglish (US)
Article number014503
JournalPhysical Review Letters
Volume105
Issue number1
DOIs
StatePublished - Jul 1 2010

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Vedadi, M., Choubey, A., Nomura, K., Kalia, R. K., Nakano, A., Vashishta, P., & Van Duin, A. (2010). Structure and dynamics of shock-induced nanobubble collapse in water. Physical Review Letters, 105(1), [014503]. https://doi.org/10.1103/PhysRevLett.105.014503