FLAG-SGH Sedov calculations

Fung, Jimmy¹  Schofield, Sam²  Shashkov, Mikhail J.¹ 

[1]Los Alamos National Laboratory

[2]LLNL

关键词: DIMENSIONS;    ENERGY SOURCES;    RESOLUTION;    SIMULATION;    SYMMETRY;   

DOI  :  10.2172/1044846
RP-ID  :  LA-UR-12-22472
PID  :  OSTI ID: 1044846
Others  :  TRN: US201214%%1021

学科分类：数学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

We did not run with a 'cylindrically painted region'. However, we did compute two general variants of the original problem. Refinement studies where a single zone at each level of refinement contains the entire internal energy at t=0 or A 'finite' energy source which has the same physical dimensions as that for the 91 x 46 mesh, but consisting of increasing numbers of zones with refinement. Nominal mesh resolution: 91 x 46. Other mesh resolutions: 181 x 92 and 361 x 184. Note, not identical to the original specification. To maintain symmetry for the 'fixed' energy source, the mesh resolution was adjusted slightly. FLAG Lagrange or full (Eulerian) ALE was used with various options for each simulation. Observation - for either Lagrange or ALE, point or 'fixed' source, calculations converge on density and pressure with mesh resolution, but not energy, (not vorticity either).