Plastic ablator in the hydrodynamic-instability regime: a rst-principle set of microscopic coefficients

Flavien Lambert
Commissariat à l'Énergie Atomique (CEA)

We have performed orbital-free (of) and quantum (q) molecular dynamics (md) simulations on plastic ablator along two isochores, namely 7 and 9 g cm(-cubed), from 5 to 40 eV. These thermodynamic
conditions correspond to the one encountered during Inertial Confinement Fusion (ICF) capsule implosion when hydrodynamic instabilities can take place. The coupling between OFMD and QMD
allowed us to compute an exhaustive set of microscopic coefficients, i.e. equation-of-state, ionic diff usion coefficients, thermal and electrical conductivities, spanning phenomena that can mitigate the growth of classical Rayleigh-Taylor instability. Comparisons with widely-used models in hydrodynamics simulations are led.

Presentation (PDF File)

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