TY - GEN
T1 - Jet-edge interaction tones
T2 - 30th AIAA/CEAS Aeroacoustics Conference, 2024
AU - Stavropoulos, Michael N.
AU - Do Amaral, Filipe Ramos
AU - Cavalieri, André V.G.
AU - Lesshafft, Lutz
AU - Jordan, Peter
N1 - Publisher Copyright:
© 2024, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2024/1/1
Y1 - 2024/1/1
N2 - A current area of interest within jet noise is the installed-jet configuration, being a representation of interactions between the aircraft exhaust and the wing. This work considers a previously presented dataset (Amaral et al. AIAA paper 2023-3830) where a simplified configuration involving a round jet and a rectangular plate was studied, and explores the different tonal regimes that are observed across jet Mach number and plate radial offset (R/D) for constant plate axial offset and angle. These are, broadband, transitional, linear frequency-selection (LFS), LFS with non-linearities, and non-linear frequency-selection (NLFS). Results also suggested a transition from LFS to NLFS tone as R/D is decreased, and that for the case of NLFS, triadic interactions between two frequencies may produce all other tones within the spectrum.
AB - A current area of interest within jet noise is the installed-jet configuration, being a representation of interactions between the aircraft exhaust and the wing. This work considers a previously presented dataset (Amaral et al. AIAA paper 2023-3830) where a simplified configuration involving a round jet and a rectangular plate was studied, and explores the different tonal regimes that are observed across jet Mach number and plate radial offset (R/D) for constant plate axial offset and angle. These are, broadband, transitional, linear frequency-selection (LFS), LFS with non-linearities, and non-linear frequency-selection (NLFS). Results also suggested a transition from LFS to NLFS tone as R/D is decreased, and that for the case of NLFS, triadic interactions between two frequencies may produce all other tones within the spectrum.
U2 - 10.2514/6.2024-3311
DO - 10.2514/6.2024-3311
M3 - Conference contribution
AN - SCOPUS:85202443040
SN - 9781624107207
T3 - 30th AIAA/CEAS Aeroacoustics Conference, 2024
BT - 30th AIAA/CEAS Aeroacoustics Conference, 2024
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
Y2 - 4 June 2023 through 7 June 2023
ER -