A review of acoustic imaging methods using phased microphone arrays: Part of the “Aircraft Noise Generation and Assessment” Special Issue

R Merino-Martínez, P Sijtsma, M Snellen… - CEAS Aeronautical …, 2019 - Springer
Phased microphone arrays have become a well-established tool for performing
aeroacoustic measurements in wind tunnels (both open-jet and closed-section), flying …

[HTML][HTML] Aeroacoustic design and characterization of the 3D-printed, open-jet, anechoic wind tunnel of Delft University of Technology

R Merino-Martínez, AR Carpio, LTL Pereira, S van Herk… - Applied Acoustics, 2020 - Elsevier
The newly refurbished vertical tunnel (V-tunnel) at Delft University of Technology has been
redesigned as a state-of-the-art facility for research in aeroacoustics (A-tunnel), as well as …

Trailing-edge noise comparability in open, closed, and hybrid wind tunnel test sections

MPJ Sanders, CFJ Koenjer, L Botero-Bolivar… - AIAA journal, 2022 - arc.aiaa.org
Open-jet, hard-wall, and hybrid test section configurations are typically used in wind tunnel
tests, aiming to represent the ideal free-flight condition. Each test section type requires …

Integration methods for distributed sound sources

R Merino-Martínez, P Sijtsma… - International …, 2019 - journals.sagepub.com
Most acoustic imaging methods assume the presence of point sound sources and, hence,
may fail to correctly estimate the sound emissions of distributed sound sources, such as …

Data-driven sparse sampling for reconstruction of acoustic-wave characteristics used in aeroacoustic beamforming

S Kaneko, Y Ozawa, K Nakai, Y Saito, T Nonomura… - Applied Sciences, 2021 - mdpi.com
In this study, the propagation time and attenuation rate distributions of each sound source
grid point (200× 200) to a microphone of an arbitrary position across the shear layer, which …

[HTML][HTML] Slat noise measurements in open-jet, hard-wall and hybrid wind tunnel test sections

MPJ Sanders, CH Venner, LD de Santana - Journal of Sound and Vibration, 2023 - Elsevier
This paper assesses the comparability of aeroacoustic slat noise measurement in an open-
jet, a hard-wall, and a hybrid test section configuration. The 30P30N common research …

Unsteady propagation and mean corrections in open-jet and Kevlar® wind tunnels

CJ Bahr, FV Hutcheson, DJ Stead - AIAA Journal, 2021 - arc.aiaa.org
Two types of aeroacoustic wind-tunnel test section configurations have been tested in the
NASA Langley Quiet Flow Facility. The first is a more traditional open-jet configuration …

Overview of aeroacoustic testing of the high-lift common research model

DP Lockard, TL Turner, CJ Bahr… - AIAA Aviation 2021 …, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-2113. vid This paper presents an
overview of the experimental data obtained in a 2020/2021 aeroacoustic test of the high-lift …

[HTML][HTML] Acoustic Lucky Imaging for microphone phased arrays

J Biesheuvel, M Tuinstra, LD de Santana… - Journal of Sound and …, 2023 - Elsevier
Acoustic imaging methods are used to detect and quantify aerodynamic noise sources in
aeroacoustic experiments. In wind tunnels with an open jet test section the sound wave …

[PDF][PDF] Inverse integration method for distributed sound sources

R Merino-Martınez, P Sijtsma… - Proceedings of the 7th …, 2018 - pure.tudelft.nl
Most acoustic imaging methods assume the presence of point sound sources and, hence,
fail to correctly estimate the sound emissions of distributed sound sources (such as trailing …