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 …
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 …
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 …
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 …
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 …
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 …
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 …
has conducted and sponsored research aimed at reducing noise from commercial aircraft …
Unsteady simulations of a fan/outlet-guide-vane system: broadband-noise computation
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 …
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
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 …
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 …
generated and radiated by the rotor–stator interaction in a fan stage. This model is able to …