Speaker: Dr. Alice Koniges, Center for Applied Scientific Computing, LLNL
Abstract:
Targets from high-powered inertial confinement fusion laser fac
ilities can produce a significant amount of debris and shrapnel that can damag
e optical and diagnostic components. We have developed a new multiscale, multi
physics code that calculates the way that high temperature materials ablate, f
ragment and vaporize. The code combines the Arbitrary Lagrangian Eulerian (ALE
) method with Adaptive Mesh Refinement (AMR) to provide a robust and efficien
t simulation environment. Physics packages are based on a fluid model of the
plasma with optional radiation diffusion and material strength/failure/fragme
ntation models. The code is built on a scalable AMR framework. We give example
s of target calculations for upcoming National Ignition Facility (NIF) experim
ents as well as experiments at other high-powered laser facilities.