Description
Thermal transport theories and their associated transport coefficients are still a major questioning in high energy density physics context, such as in inertial confinement fusion, where an energetic laser irradiates and heats a plasma. Difficulties arise when the plasma conditions span from local to nonlocal regimes, from unmagnetized to magnetized, and sometimes both, that is nonlocal magnetized situations. Dealing with those situations is difficult, and simulations’ codes, mainly based on radiative-hydrodynamic equations, struggle to adjust because there is no robust model that takes properly microscopic (kinetic) effects at the macroscopic (hydro) scale. Experiments in open geometry, hydrogen gas jets, have been carried out a the LULI2000 facility using extensive plasma diagnostics based on Thomson Scattering, allowing to infer temporally- and spatially- resolved plasma conditions. Those experimental data provide an original database for validating our simulations tools in a large variety of plasma conditions, still in low density (lower than the laser critical density). We will present and discuss two-dimensional kinetic simulations of this experiment using the Vlasov-Fokker-Planck code ALADIN (see references inside [1,2]).