Non-local electron transport validation using 2D DRACO simulations

POSTER

Abstract

Comparison of 2D DRACO simulations, using a modified version\footnote{private communications with M. Marinak and G. Zimmerman, LLNL.} of the Schurtz, Nicolai and Busquet (SNB) algorithm\footnote{Schurtz, Nicolai and Busquet, ``A nonlocal electron conduction model for multidimensional radiation hydrodynamics codes,'' Phys. Plasmas 7, 4238(2000).} for non-local electron transport, with direct drive shock timing experiments\footnote{T. Boehly, et. al., ``Multiple spherically converging shock waves in liquid deuterium,'' Phys. Plasmas 18, 092706(2011).} and with the Goncharov non-local model\footnote{V. Goncharov, et. al., ``Early stage of implosion in inertial confinement fusion: Shock timing and perturbation evolution,'' Phys. Plasmas 13, 012702(2006).} in 1D LILAC will be presented. Addition of an improved SNB non-local electron transport algorithm in DRACO allows direct drive simulations with no need for an electron conduction flux limiter. Validation with shock timing experiments that mimic the laser pulse profile of direct drive ignition targets gives a higher confidence level in the predictive capability of the DRACO code. This research was supported by the University of Rochester Laboratory for Laser Energetics.

Authors

  • Duc Cao

    University of Wisconsin-Madison

  • Jeff Chenhall

    University of Wisconsin-Madison

  • Eli Moll

    University of Wisconsin-Madison

  • Alex Prochaska

    University of Wisconsin-Madison

  • Gregory Moses

    Fusion Technology Institute, University of Wisconsin, University of Wisconsin-Madison

  • Jacques Delettrez

    Laboratory for Laser Energetics, U. of Rochester, LLE, Laboratory for Laser Energetics, Laboratory for Laser Energetics, University of Rochester

  • Tim Collins

    Laboratory for Laser Energetics, U. of Rochester, Laboratory for Laser Energetics