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This article presents a fully numerical method for predicting multiple pure tones, also known as “Buzzsaw” noise. It consists of three steps that account for noise source generation, nonlinear acoustic propagation with hard as well as lined walls inside the nacelle, and linear acoustic propagation outside the engine. Noise generation is modeled by steady,(More)
Understanding the complex turbulent mixing noise sources for jet exhaust nozzles is critical to delivering the next generation of "green" low-noise jet engines. A scalable, compressible Large Eddy Simulation (LES)-based Computational Aeroacoustics (CAA) solver is used to study the impact of the wing installation geometry on the turbulent mixing noise from(More)
Understanding the complex turbulent mixing noise sources for jet exhaust nozzles is critical to delivering the next generation of "green" low-noise jet engines. High performance computing resources are used to develop/prove hi-fidelity direct-from-first-principles predictions of noise to characterize these hard to measure acoustic sources. A scalable,(More)
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