Verification and Validation of FLASH for magnetized HED systems

ORAL

Abstract

Recent developments in the FLASH multiphysics code –- including implicit magnetic diffusion with AMR, anomalous resistivity, and 3T SESAME EOS — have equipped FLASH to model magnetized HED systems including various Z pinch configurations. Here, we present a range of unit physics and integrated test problems used for verification and validation of FLASH's magnetized HED capabilities. Analytic benchmarks including magnetic diffusion solutions and linear instability growth rates for canonical z pinch instabilities instill confidence in accurate solution of the equations of interest. In addition, we compare against key magnetized HED experiments to demonstrate FLASH's maturity for experimental design and analysis.

*The Flash Center for Computational Science acknowledges support by the U.S DOE NNSA under Awards DE-NA0003856 and DE-NA0003842, and Subcontracts 536203 and 630138 with LANL and B632670 with LLNL. Support from the U.S. DOE ARPA-E under Award DE-AR0001272 and U.S. DOE Office of Science, Fusion Energy Sciences under Award DE-SC0021990 is also acknowledged.

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Presenters

  • Leland L Ellison

    • Pacific Fusion

Authors

  • Leland L Ellison

    • Pacific Fusion

  • Keith LeChien

    • Pacific Fusion

  • Jonathan Carroll-Nellenback

    • jonathan.carroll@rochester.edu
    • University of Rochester
    • Laboratory for Laser Energetics

  • Fernando Garcia Rubio

    • University of Rochester
    • Laboratory for Laser Energetics

  • Edward C Hansen

    • University of Rochester

  • Kasper Moczulski

    • University of Rochester

  • Adam Reyes

    • University of Rochester

  • Petros Tzeferacos

    • University of Rochester