Method developments targeting the efficient and accurate simulation of jet noise from complex, installed configurations are presented. Improvements to Detached-Eddy Simulation (DES) achieve a rapid development of resolved turbulence in the early shear layer region, which is of great importance for jet noise simulation. The practical non-zonal nature of DES is retained, while its efficient treatment of attached turbulent boundary layers enables the simulation of installation effects with feasible computational effort Alongside the turbulence modelling developments, a hybrid structured-unstructured meshing strategy is explored. This couples efficient anisotropic shear layer refinement in the structured jet plume region with practical unstructured meshing for the surrounding complex geometry. Although the need to ensure a smooth structured/unstructured transition leads to additional constraints, viable mitigation strategies have been proposed. Encouraging initial results for the near-field flow prediction and far-field sound prediction are presented and discussed.
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