Shervin Sammak will be giving a presentation titled “A DG-MC Large Scale Parallel FDF Simulator for Low- & High- Speed Turbulent Transport” on Monday September 12, 2016 in 307 Eberly Hall at 1:30PM.
A new computational scheme is developed for large eddy simulation (LES) of compressible turbulent flows via the filtered density function (FDF) subgrid scale closure. This is a hybrid scheme, combining the discontinuous Galerkin (DG) Eulerian solver with a Lagrangian Monte Carlo (MC) FDF simulator. Simulations are conducted of subsonic and supersonic flows. The scheme is shown to be suitable for LES, as a larger portion of the resolved energy is captured with higher order of spectral approximation. The consistency and the overall performance of the DG-MC solver and the realization of the simulated results are demonstrated via LES of a temporally developing mixing layer under both non-reacting and reacting conditions.