Recent Advances in Aeroacoustics (2nd Edition)

Dear Colleagues,

Aeroacoustics has evolved from being an afterthought of noise reduction measures to become an integral part of the design of aircraft and their engines. The considerable progress in reducing engine noise has led to the increasing relevance of aerodynamic noise, adding another dimension to aeroacoustics. The growth of air traffic, doubling every 15 to 25 years, compounds the challenge of reducing the total noise exposure of near airport residents. The reduction in external noise is the subject of specific performance targets in the aeronautical research programs, such as H2020-Acare in Europe and the Environmentally Responsible Aircraft (ERA) in the U.S, and their on-going follow-on activities. These targets of noise reduction, per aircraft operation, aim at enabling stricter International Civil Aviation Organization (ICAO) noise standards and avoiding noise restrictions imposed by authorities at major airports, in addition to the certification and local standards for external noise. Airlines value low internal noise for the comfort of passengers.

The preceding factors all contribute to the increasing breadth and importance of aeroacoustics. In addition, the strong concern with the climate change effects of emissions means that they join noise as the two main environmental issues affecting aviation. Since the journal Aerospace published its first Special Issue on “Recent Advances in Aeroacoustics” (https://www.mdpi.com/journal/aerospace/special_issues/aeroacoustics), there has been considerable evolution within the subject area, both in a social context and in terms of the research advances aiming to address noise-related issues. There is a trend towards tightening environmental regulations and increasingly less tolerance for noise. This second Special Issue, with focus on aeroacoustics, addresses the broad range of topics related to aircraft noise and its societal implications, as well as the scientific and technological progress since the first Issue and the evolving social and operational conditions of a more environmentally conscious local and international community. This new Issue thus welcomes papers on a broad range of topics, including (i) analytical and computational aeroacoustics; (ii) experimental methods; (iii) applications in engine and aircraft design; and (iv) low-noise operating procedures. Particularly desirable are papers connecting more than one of aspects (i) to (iv), e.g., (i) computational aeroacoustics with (ii) experimental validation, simulating an (iii) aircraft application or (iv) operational procedure. The research results reported may be related to on-going or recently completed research projects. Among the relevant topics are mentioned: (1) sound propagation, generation, radiation, absorption, dissipation, and refraction in flows and the atmosphere; (2) theory and experiments on noise in sheared, swirling, non-isothermal, and turbulent flows; (3) noise of open fans, propellers, rotors, jets, turbine engines, and combustion; (4) noise shielding, acoustic liners, and low noise aircraft design; (5) airport noise, low noise operations, and psychoacoustics; (6) acoustic fatigue and other structural effects of extremely high noise levels, such as those associated with rocket launches and the attenuation of their effects on payloads such as satellites.

Prof. Dr. Luís M.B.C. Campos
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Aerospace is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• aeroacoustics
• airport noise
• aircraft noise
• engine noise
• low-noise operations
• rocket noise
• flow acoustics
• duct/nozzle acoustics
• sound sources
• rotor/propeller noise
• sound attenuation
• acoustic liners
• active noise reduction
• noise shielding and installation effects
• noise reduction targets and certification
• acoustic-emission design compromises
• acoustic fatigue

• Recent Advances in Aeroacoustics in Aerospace (6 articles)