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 …

A second golden age of aeroacoustics?

SK Lele, JW Nichols - Philosophical Transactions of the …, 2014 - royalsocietypublishing.org
In 1992, Sir James Lighthill foresaw the dawn of a second golden age in aeroacoustics
enabled by computer simulations (Hardin JC, Hussaini MY (eds) 1993 Computational …

Almost 40 years of airframe noise research: what did we achieve?

W Dobrzynski - Journal of aircraft, 2010 - arc.aiaa.org
IN THE early 1970s the first twin cycle bypass turbofan engines came into service. The
development of such engines was triggered by the need to reduce fuel consumption but also …

Experimental and numerical investigation of turbulence-airfoil noise reduction using wavy edges

V Clair, C Polacsek, T Le Garrec, G Reboul, M Gruber… - AIAA journal, 2013 - arc.aiaa.org
A passive leading-edge treatment based on sinusoidal serrations aimed at reducing
turbofan interaction noise has been recently studied in the framework of a European project …

LES investigation of cavitation harmonic tone around a Delft twist-11 hydrofoil

X Wang, X Bai, H Cheng, A Yu, B Ji - Ocean Engineering, 2022 - Elsevier
In this paper, a hybrid CHA approach, including the LES approach and the permeable
Ffowcs Williams-Hawkings (PFW–H) equation, is adopted to predict the cavitating flow and …

[HTML][HTML] Transient cavitating flow structure and acoustic analysis of a hydrofoil with whalelike wavy leading edge

Z Li, Z Qian, B Ji - Applied Mathematical Modelling, 2020 - Elsevier
In this paper, the open source software OpenFOAM is used to perform a numerical
investigation of the cavitating flow around a modified NACA63 4-021 hydrofoil with …

CAA broadband noise prediction for aeroacoustic design

R Ewert, J Dierke, J Siebert, A Neifeld, C Appel… - Journal of sound and …, 2011 - Elsevier
The current status of a computational aeroacoustics (CAA) approach to simulate broadband
noise is reviewed. The method rests on the use of steady Reynolds averaged Navier–Stokes …

Trailing edge noise reduction using bio-inspired finlets

VB Ananthan, RAD Akkermans - Journal of Sound and Vibration, 2023 - Elsevier
Inspired by the silent flight of the owl, the current work focuses on the reduction of trailing
edge noise using 2D finlets. Overset-Large Eddy Simulations are carried out of two …

Hydroacoustic analysis of a full-scale marine vessel: Prediction of the cavitation-induced underwater radiated noise using large eddy simulations

MR Pendar, D McIntyre, P Oshkai - Physics of Fluids, 2024 - pubs.aip.org
This numerical study provides insight into the mechanism of noise generation by a cavitating
flow in the wake of a marine propeller under realistic operating conditions, which poses a …

Effect of porous material on trailing edge sound sources of a lifting airfoil by zonal overset-LES

VB Ananthan, P Bernicke, RAD Akkermans… - Journal of Sound and …, 2020 - Elsevier
This manuscript reports on the effects of application of porous material on the trailing edge of
a 3D cambered airfoil. The numerical study has been carried out following a zonal Overset …