Flux-limitation of the Nernst effect in magnetized ICF

ORAL

Abstract

Magnetized ICF is a promising scheme which combines the advantages of magnetic and inertial confinement fusion. In the relevant high-energy density plasmas magnetic field evolution is often controlled by the Nernst effect where the magnetic field advects with the electron heat flow. It is well known that non-local thermal transport necessitates a flux-limiter on the heat flow. This suggests that a flux-limiter should also be applied to the Nernst effect. We have shown that this is the case using Vlasov-Fokker-Planck simulations and that the flux-limter is not the same as that required for the heat flow itself, for example when a NIF-relevant flux-limiter of 0.15 is required to limit the heat flow a Nernst flux limiter of 0.08 is required.

*We acknowledge support from EPSRC grant no. EPM011372/1

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Authors

  • Christopher Ridgers

    • York Plasma Institute, University of York, UK
    • University of York

  • Rion Barrois

    • University of Technology, Eindhoven, The Netherlands

  • Joshua Wengraf

    • University of Manchester, UK

  • John Bissell

    • University of Bath, UK

  • Jonathan Brodrick

    • York Plasma Institute, University of York, UK
    • University of York

  • Robert Kingham

    • Imperial College London

  • Martin Read

    • York Plasma Institute, University of York, UK