Purple in the News
Challenge" simulation on ASC Purple
in support of the National Ignition Campaign
Simulation of the grain structure of a beryllium-–copper tamper for a fusion ignition
capsule in the presence of a National Ignition Facility (NIF) laser energy drive.
Scientists at LLNL have been studying the grain structure of the tamper material
and its significance as a source for initiation of turbulent instabilities in
the capsules. The blue regions show where the beryllium–copper has melted,
and the other colors represent grain orientations for the still-solid tamper.
This simulation ran on the ASC Purple supercomputer with over one billion total
zones, making it one of the largest continuum material simulations ever done