Aircraft Noise

• Other Authors: Bertsch, Lothar (Editor), Sescu, Adrian (Editor)
• Format: Electronic Book Chapter
• Language: English
• Published: Basel 2022
• Subjects: Technology: general issues; History of engineering & technology; aircraft noise simulation; conceptual aircraft design; noise certification; ICAO Annex 16; PANAM; RCE; green aviation; airport operations; aircraft noise impact; noise prediction method; large eddy simulations; jet noise; jet-surface interaction; aircraft noise; simulation; sonAIR; FLULA2; AEDT; validation with measurements; low-noise aircraft design; center of excellence; Sustainable and Energy-Efficient Aviation (SE2A); forward swept wing; PrADO; aircraft noise prediction; supersonic transport aircraft; NASA STCA; FAA NPRM; LTO noise; SuperSonic Transport (SST); aircraft conceptual design; aeroacoustics; rotor-stator interaction noise; porous material; turbulence modeling; synthetic turbulence; CFD; supersonic aircraft; ICAO Annex 16 Vol.1; multiobjective optimisation; community noise; air quality; sound quality; noise abatement procedures; spectral matching
• Online Access: DOAB: download the publication; DOAB: description of the publication

Noise generated by aircraft continues to be a pressing issue for society, as an increasing number of people residing in close proximity to airports make noise complaints on a regular basis. The reduction in aircraft noise is therefore a very important engineering task that would require the careful identification of different acoustic sources around the airplane, the understanding of noise source behavior and ranking along flight trajectories, sophisticated measurement techniques, and robust and accurate numerical tools aimed at predicting the generation of noise, the propagation through the atmosphere, and the resulting noise impact along approach and departure flights. For an overall assessment of the situation, it has to be assessed along entire flight trajectories rather than assessing limited operating conditions only. Furthermore, it is highly recommended to apply multiple acoustic metrics and account for different and widespread observer locations along the flight. Only then can the overall situation be adequately captured. Obviously, this is a highly multidisciplinary effort and no single discipline can address this problem. This reprint includes selected research studies with that multidisciplinary context that deal with numerical or experimental investigations that range from the investigation of specific noise sources to the assessment of noise generated by the overall aircraft in operation. Both basic and applied research studies involving the modelling and simulation of aircraft noise are included.