Sensitivity analysis of experimental parameters on 1D HYADES output

The Center for Radiative Shock Hydrodynamics (CRASH) at the University of Michigan is a focused effort to do predictive science in the regime of radiative hydrodynamics. The current plan with CRASH is to use 2D HYADES (or H2D) to model the laser-energy-deposition portion of the experiment, before passing the results to the CRASH code to be used as its initial conditions. HYADES is a Lagrangian Radiation Hydrodynamics code in either 1D or 2D with 3D laser ray-tracing in 2D. It is written and developed by Jon Larsen at Cascade Sciences Inc. Data from radiating shock experiments, carried out on the Omega Laser at LLE, will be used to assess the predictive capability of the CRASH code. We will show results of a series of 1D simulations using HYADES, performed to examine the sensitivity of various physical quantities to the variability of experimental parameters. Code results are analyzed at 1.1 ns and 13 ns to correspond to the time that the data are exchanged between the two codes and the time at which data were collected for the radiative shock experiments. Conducting the initial sensitivity study in 1D will allow for a more directed approach to sensitivity studies in 2D and 3D, and will stimulate further analysis of the experimental data.