Aircraft noise prediction

A Filippone - Progress in Aerospace Sciences, 2014 - Elsevier
This contribution addresses the state-of-the-art in the field of aircraft noise prediction,
simulation and minimisation. The point of view taken in this context is that of comprehensive …

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 …

Rotating rake turbofan duct mode measurement system

DL Sutliff - 2005 - ntrs.nasa.gov
An experimental measurement system was developed and implemented by the NASA Glenn
Research Center in the 1990s to measure turbofan duct acoustic modes. The system is a …

[PDF][PDF] A unified analytical approach for the acoustic conceptual design of fans of modern aero-engines

A Moreau - 2017 - depositonce.tu-berlin.de
This thesis proposes a set of theoretical models to predict, during the conceptual design
phase, the sound emitted by the fan stage of an aero-engine, which is due to the interaction …

On the study of wavy leading-edge vanes to achieve low fan interaction noise

F Tong, W Qiao, K Xu, L Wang, W Chen… - Journal of Sound and …, 2018 - Elsevier
The application of wavy leading-edge vanes to reduce a single-stage axial fan noise is
numerically studied. The aerodynamic and acoustic performance of the fan is numerically …

Design selection and analysis of a swept and leaned stator concept

E Envia, M Nallasamy - Journal of Sound and Vibration, 1999 - Elsevier
This paper describes a two-part analytical study of the benefits of stator sweep and lean for
reducing rotor-stator interaction tone noise. The first part of the paper describes a design …

Noise reduction technologies for turbofan engines

DL Huff - 35th International Congress and Exposition on Noise …, 2007 - ntrs.nasa.gov
Significant progress continues to be made with noise reduction for turbofan engines. NASA
has conducted and sponsored research aimed at reducing noise from commercial aircraft …

Unsteady simulations of a fan/outlet-guide-vane system: broadband-noise computation

T Suzuki, PR Spalart, ML Shur, MK Strelets, AK Travin - AIAA Journal, 2019 - arc.aiaa.org
The fan broadband noise of a rotor–stator system representing a turbofan aeroengine is
investigated using the improved delayed detached-eddy-simulation approach. The baseline …

Parametric study on state-of-the-art analytical models for fan broadband interaction noise predictions

D Lewis, J de Laborderie, M Sanjosé, S Moreau… - Journal of Sound and …, 2021 - Elsevier
Abstract Rotor–Stator Interaction (RSI) noise predictions using analytical models have
become a first hand approach to perform quick and efficient noise assessments. However, a …

Prediction of tonal ducted fan noise

J De Laborderie, S Moreau - Journal of Sound and Vibration, 2016 - Elsevier
This study introduces an analytical model aiming at predicting the tonal acoustic sources
generated and radiated by the rotor–stator interaction in a fan stage. This model is able to …