Modeling and Simulation of Fluid Mixing Laser Experiments and Supernova; Reporting Period 5/1/06-4/30/07

Glimm, James

Stony Brook University

关键词: Interfaces High Energy Density Physics, Turbulent Mixing;    High Energy Density Physics, Turbulent Mixing;    Simulation;    Diffusion;    Lasers;   

DOI  :  10.2172/907765
RP-ID  :  DOE/NA/26208-1
RP-ID  :  FG52-06NA26208
RP-ID  :  907765

美国|英语

来源: UNT Digital Library

【 摘 要 】

The three year plan for this project is to develop novel theories and advanced simulation methods leading to a systematic understanding of turbulent mixing. A primary focus is the comparison of simulation models (both Direct Numerical Simulation and subgrid averaged models) to experiments. The comprehension and reduction of experimental and simulation data are central goals of this proposal. We will model 2D and 3D perturbations of planar interfaces. We will compare these tests with models derived from averaged equations (our own and those of others). As a second focus, we will develop physics based subgrid simulation models of diffusion across an interface, with physical but no numerical mass diffusion. We will conduct analytic studies of mix, in support of these objectives. Advanced issues, including multiple layers and reshock, will be considered.