3D Finite Volume simulation of acoustic waves in the earth atmosphere

We present a very high-order Finite Volume discretization of the 3D linearized convective Euler equations for the simulation of acoustic waves in the Earth atmosphere. We also derive a weakly nonlinear model for the approximation of N-waves. We discuss the use and the implementation of these methods on massively parallel computers based on our experience on the Bull-TERA 10 parallel HPC machine at the CEA. Verification–validation is done in dimension two and three with physical data obtained from a large-scale physical experiment.