A multigroup radiation diffusion test problem: Comparison of code results with analytic solution

Conference · Thu Dec 21 00:00:00 EST 2006

OSTI ID:902372

Shestakov, A I; Harte, J A; Bolstad, J H; Offner, S R

We consider a 1D, slab-symmetric test problem for the multigroup radiation diffusion and matter energy balance equations. The test simulates diffusion of energy from a hot central region. Opacities vary with the cube of the frequency and radiation emission is given by a Wien spectrum. We compare results from two LLNL codes, Raptor and Lasnex, with tabular data that define the analytic solution.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 902372
• Report Number(s): UCRL-PROC-227000; TRN: US200717%%280
• Resource Relation: Conference: Presented at: Nuclear Explosives Code Developers Conference, Los Alamos, NM, United States, Oct 22 - Oct 27, 2006
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUMM MECHANICS
GENERAL PHYSICS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
DIFFUSION
ENERGY BALANCE
LAWRENCE LIVERMORE NATIONAL LABORATORY
NUCLEAR EXPLOSIVES
RADIATIONS