The need of accurate and efficient numerical solvers in computational aeroacoustics has motivated the development over the last two decades of low-dispersion and low-dissipation schemes as an alternative to standard methods of computational fluid mechanics. These numerical methods have now reached maturity, even if progress is still necessary to take account of specific configurations. The present paper provides a short overview of some recent developments and applications of these methods, and is organized as follows. Motivations and numerical advances are first considered. Then the paper focuses on the use of direct noise simulations to improve our understanding of sound generation by turbulent flows. Applications to subsonic and supersonic jet noise are presented.
展开▼
