On Strategies for Predictive Shock-Driven Turbulent Mixing Simulation
Fernando Grinstein (Los Alamos National Laboratory)
Abstract:
In the large eddy simulation (LES) approach large-scale energy-containing structures are resolved, smaller (presumably) more isotropic structures are filtered out, and unresolved subgrid effects are modeled. Extensive recent work has demonstrated that predictive simulations of turbulent velocity fields are possible based on subgrid scale modeling implicitly provided by high-resolution finite-volume numerical algorithms. This strategy is called implicit LES. The extension of the approach to the substantially more difficult problem of material mixing is addressed, and progress in representative (shock-driven) mixing studies is reported.
Keywords:
Large Scale Simulations in CS&E (earth, environment, finance, geoscience, engineering, ...), Multiscale and Multiphysics Problems, Computing for Aerospace and Engineering
