Slat noise in high-lift systems

Y Zhang, L Cattafesta, K Pascioni… - Progress in Aerospace …, 2024 - Elsevier
This paper reviews several decades' worth of research on the topic of slat noise arising from
high-lift systems of commercial aircraft. A high-lift system is commonly used for providing …

Effects of bulb seal on slat flow dynamics and slat tones

Q Zhang, C Gao, H Wang, W Zhang, D Yang - European Journal of …, 2023 - Elsevier
Abstract The Delayed Detached Eddy Simulation (DDES) and Ffowcs Williams–Hawkings
(FW–H) analogy have been performed to describe the unsteady flow and noise-generation …

Spectral proper orthogonal decomposition of coupled hydrodynamic and acoustic fields: Application to impinging jet configurations (draft)

M Fiore, H Parisot-Dupuis, B Etchebarne, R Gojon - Computers & Fluids, 2022 - Elsevier
A large variety of flow configurations involve an aero-acoustic coupling and the complexity of
the interaction can make the analysis difficult. In the purpose to decompose these flows in …

Characterization of noise sources in two-and three-element high-lift airfoil configurations

MK Okoronkwo, DG Geneau, JM Eburn, H Ben-Gida… - Applied Acoustics, 2025 - Elsevier
To improve the current understanding of flap noise generation mechanisms in high-lift
devices used by small-to large-size commercial aircraft, a detailed study of both two-and …

On the mechanism of acoustic resonances from a leading-edge slat

W Li, Y Guo, W Liu - Aerospace Science and Technology, 2021 - Elsevier
Implicit large-eddy simulations are performed to investigate the acoustic resonances from a
leading-edge slat at two different Reynolds numbers. Three types of acoustic waves are …

Eduction of acoustics-related coherent structures from Schlieren images of supersonic twin jets by coupling Doak's decomposition and SPOD

I Padilla-Montero, D Rodríguez, V Jaunet… - arXiv preprint arXiv …, 2023 - arxiv.org
This work proposes a methodology to improve the extraction of coherent structures
associated with the generation of acoustic fluctuations in turbulent jets from high-speed …

Vortex dynamics for flow around the slat cove at low Reynolds numbers

JS Wang, JJ Wang - Journal of Fluid Mechanics, 2021 - cambridge.org
Time-resolved particle image velocimetry (TR-PIV) is employed to investigate the vortex
dynamics around the slat cove of a 30P30N multi-element airfoil at a fixed geometric angle …

Slat cove dynamics of multi-element airfoil at low Reynolds number

JS Wang, Y Xu, JJ Wang - Science China Technological Sciences, 2023 - Springer
The flow around the slat cove of a two-dimensional 30P30N multi-element airfoil is
investigated with time-resolved particle image velocimetry (TR-PIV) at low Reynolds number …

Aeroacoustic characteristics of a strut-braced high-lift device

L Bowen, HK Jawahar Jr, M Azarpeyvand - Aerospace Science and …, 2024 - Elsevier
The aerodynamic and aeroacoustic performance of a strut-based high-lift device were
evaluated and demonstrated for six different strut models. The primary objective of the study …

Near-field turbulent structures in supersonic rectangular jets using 3D parabolized stability equations

D Rodriguez, C Prasad, D Gaitonde - AIAA Aviation 2021 Forum, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-2276. vid Interest in rectangular
jets for military applications has increased considerably in recent years motivated by their …