An inlet for a supersonic commercial aircraft is analyzed for noise radiation in low-speed configuration, with auxiliary inlet open. Duct mode amplitudes generated by the fan are determined by post-processing a URANS simulation and become a boundary condition to the inlet. Far-field sound is modeled using commercial acoustics finite element software. The effect of inlet geometry and acoustic liners is simulated and discussed. Absolute levels for inlet tone noise are predicted.
Acoustics of a Supersonic Mach 1.4 Axisymmetric Spike Inlet
AIAA AVIATION Forum and Exposition ; 2023 ; San Diego, CA, US
2023-06-12
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English