A publication of the Office of Advanced Simulation & Computing, NA-114, NNSA Defense Programs
December 2007
NA-ASC-500-07—Issue
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Sandia and Livermore Collaborate on Radiation-MHD Code Development
Dimitri Kusnezov (NNSA), Joan Woodard (Sandia), and Bruce Goodwin (Lawrence Livermore), recently signed a Memorandum of Agreement “to establish an explicit collaboration between Sandia National Laboratories (SNL) and Lawrence Livermore National Laboratory (LLNL) for the purposes of developing, verifying, and validating a radiation-MHD simulation capability for high density physics (HEDP) and aboveground experiments (AGEX) within LLNL’s Kull framework. A goal for this collaboration is to leverage the complementary strengths of the LLNL and SNL projects (radiation-hydrodynamics and magneto-hydrodynamics (MHD), respectively) to create ‘best in class’ capabilities in a cost-effective fashion.”
This development will build upon the successful collaboration in Implicit Monte Carlo radiation transport that has existed for several years between these two laboratories. The memorandum states: “A joint repository for the KULL code and associated third party libraries, material data, and other support software will be established for the combined code team utilizing appropriate network connections and software. The focus of the initial collaboration will be the development of MHD modules, expanding to other areas.” The project will draw upon LLNL expertise in multi-physics radiation-hydrodynamics algorithms and the three dimensional (3-D) MHD algorithms developed by Sandia. The 3-D MHD algorithm in the ALEGRA code recently demonstrated quantitative agreement with x-ray powers and energy measurements from wire array z-pinch implosions on the Z accelerator (Sept. 2007 ASCeNews). Inclusion of these MHD algorithms into the Kull and continued development of the radiation-hydrodynamics capabilities by a distributed codevelopment team is expected to deliver an important HEDP simulation capability in support of both Sandia and LLNL HEDP missions.
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