Measurements of turbulent Kelvin-Helmholtz growth in planar targets on OMEGA

ORAL

Abstract

Kelvin-Helmholtz (KH) growth of pre-imposed 2D single-mode and 3D broadband modulations was measured with side-on, x-ray radiography on OMEGA. In experiments, a strong, laser-driven shock wave propagates along the plane separating carbonized resorcinol foam (CRF) with a density of 0.1 g/cc and Iodine-doped polystyrene (CH) with density of 1.4 g/cc. Modulations on the foam-CH interface grow due to KH instability after the shock sets a flow of foam material along the interface. The growth results of 2D and 3D modulations will be presented along with comparisons with 2D simulations and 3D turbulent KH models.

*This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.

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Authors

  • V.A. Smalyuk

  • H.F. Hansen

  • O.A. Hurricane

  • H.-S. Park

  • K. Raman

  • B.A. Remington

  • H.F. Robey

  • R. Wallace

    • LLNL

  • Y. Elbaz

  • D. Shvarts

    • NRC-Negev, Beer-Sheva Israel

  • R.P. Drake

  • C.A. De Stefano

  • D.C. Marion

  • C.M. Krauland

  • C.C. Kuranz

    • U of Michigan