An acousticpropagation calculation with hybrid coupling meshing methods has shown the importance of the process for industrial applications. Hybrid coupling meshing methods make it easier to take into account complex geometries (finite-element unstructured meshing- discontinuous Galerkine method) while reducing calculation costs (structured Cartesian meshing with finite differences over the rest of the domain)
Acousticpropagation calculations, by solving Euler* equations, have been successfully chained with an LES* simulation of a hot jet at Mach 0 7... These equations, solved in an appropriate manner, can correctly simulate the propagation of acoustic waves for industrial configurations
The numerical studies were performed using the sAbrinA calculation software, which can simulate the complex phenomena of acoustic generation and propagation... View of the acousticpropagation in the median plane of the nozzle[ static state, on the left; take-off state, on the right
The Carmen software module provided by Onera simulates the sound of planes on the ground by modeling the aircraft noise sources, installation effects and acousticpropagation in the lower atmosphere. Carmen was developed by Onera acousticians and integrated into the IESTA 3 platform Clean Airport application
