Background to the aeronautics application of CABARET

In the framework of the current EPSRC Flap Noise project, the Cfoam-CABARET code is used to perform high-resolution acoustics-sensitive MILES calculations which are aimed at understanding and prediction of jet-wing-flap interaction.

In Cfoam-CABARET, for the Navier-Stokes equations, each time iteration of the CABARET method consists of a conservation phase and a characteristic decomposition phase. This algorithm works by firstly performing a conservative predictor step, followed by calculation of the viscous terms, then an extrapolation step where the local cell-based characteristic splitting is performed. Finally, the conservative corrector step is performed.