Jet noise prediction of an underexpanded jet exhausted from chevron nozzle
The Aeroacoustics module enables accurate prediction of near-field noise and its projection to the far field. In order to capture the low amplitude pressure fluctuations associated with noise generation, high-order computational tools are required. AEROFLO provides this capability at all speeds, from low Mach numbers subsonic flows to hypersonic flows. Various approaches for projecting the near-field sound to the far field are available in AEROFLO.
For the simulation shown below, combined RANS/LES procedures were used for most of the calculations of jet noise, while the combined stability-RANS-wave packet approach was rigorously investigated for unparalleled computational efficiency in noise prediction.