Aeroacoustic investigation of transonic flow behavior in M219 deep cavity with passive flow control configurations

Article Engineering, Aerospace

On the Rossiter-Heller frequency of resonant cavities

Damiano Casalino et al.

Summary: The goal of this paper is to revise the Rossiter-Heller formula for cavity resonance frequencies in subsonic and supersonic flow conditions. Two modifications are proposed and validated using experimental data and simulation results, showing that considering both modifications leads to more accurate predictions of the resonance frequencies.

AEROSPACE SCIENCE AND TECHNOLOGY (2022)

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Article Engineering, Aerospace

Effects of Aeroelastic Walls on the Aeroacoustics in Transonic Cavity Flow

Stefan Nilsson et al.

Summary: The effects of elastic cavity walls on noise generation at transonic speed were investigated. The results showed that the elastic cavity walls can cause a distinct tone at a specific frequency and significant energy transfer from the fluid to the structure. The structural and spectral analysis results were consistent with the data from the microphone array.

AEROSPACE (2022)

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Article Engineering, Aerospace

Predicting high-speed feedback mechanisms in rectangular cavities using lattice-Boltzmann very-large eddy simulations

Simone Mancini et al.

Summary: The traditional scale-resolving lattice-Boltzmann flow simulation technique accurately predicts the aeroacoustic feedback mechanisms in rectangular cavities, effectively capturing the tonal and broadband components of pressure fluctuations. An increase in Mach number is found to enhance the development of Rossiter modes in the shallow cavity configuration.

AEROSPACE SCIENCE AND TECHNOLOGY (2021)

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Article Engineering, Aerospace