ECCOMAS 2024

Evaluation of 3D Capabilities for Simulating Vortex Rings and Jetting in Inertial Confinement Fusion

  • Chiravalle, Vincent (Los Alamos National Laboratory)

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A 3D verification and validation suite for LANL’s Eulerian Adaptive Refinement code, xRAGE, is presented. Three verification test problems for hydrodynamics are included in this suite: the Kidder ball problem, the Verney shell problem, and a 5-material compression problem. There is excellent agreement between 2D and 3D XRAGE simulation results for these problems, and between the xRAGE results and the benchmark solutions. In addition, two 3D ICF test problems are presented, based on an OMEGA direct drive capsule experiment, and on a NIF indirect drive capsule experiment. These two ICF test problems are used to evaluate two hydrodynamic methods within xRAGE. In addition to hydrodynamics the simulations also include three temperature plasma physics, thermal conduction and radiation diffusion. When simulating either capsule in 3D the newer unsplit hydrodynamic method in xRAGE produces more vorticity relative to the older default method.