Some Recent Progress in Practical Computational Fluid Dynamics

Computational Fluid Dynamics (CFD) continues to make steady progress through improvements in modeling fidelity, robustness, efficiency and generality. Here we outline certain elements of this progress with a focus on practical CFD wherein varied simulations must routinely be carried out quickly with reasonable accuracy. We identify specific algorithmic and discretization features that we believe contribute to this progress. Following a general discussion with examples, we present some ideas on three specific topics: turbulence modeling, Riemann solvers and aeroacoustics.