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Fluids
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Aeroacoustics of Drones
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Aeroacoustics of Drones

A special issue of Fluids (ISSN 2311-5521).

Deadline for manuscript submissions: closed (15 December 2022) | Viewed by 4218

Special Issue Editor

Dr. Tiziano Pagliaroli

E-Mail Website
Guest Editor
Engineering Faculty, Niccolò Cusano University, via don Carlo Gnocchi 3, 00166 Rome, Italy
Interests: aeroacoustics

Special Issue Information

Dear Colleagues,

The European Union has a defined service-orientated architecture for air traffic management of drones in urban areas, called U-space. One of the main obstacles to the massive use of drones in our cities is the generated noise and its impact on health. For these reasons, the topic of noise generated by drones has become dominant in the aeroacoustics scientific community, which is responding with colossal efforts.

This Special Issue will present the state of the art of the aeroacoustics of small-scale rotors and propellers for drone propulsion. Manuscripts are invited covering the full range of noise simulation, from low- to high-fidelity methods, experimental techniques, novel strategies for data post-processing, and methods for noise mitigation. In particular, manuscripts concerning noise and noise sources associated with single propellers, propellers in twin and contra-rotating configuration, wing–propeller or fuselage–propeller interaction, and complete drones are welcome.

Dr. Tiziano Pagliaroli
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. Fluids 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 1800 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.

Keywords

  • aeroacoustics
  • rotor
  • propellers
  • drones
  • noise

Published Papers (1 paper)

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Review

23 pages, 750 KiB  
Review
Small-Scale Rotor Aeroacoustics for Drone Propulsion: A Review of Noise Sources and Control Strategies
by Paolo Candeloro, Daniele Ragni and Tiziano Pagliaroli
Fluids 2022, 7(8), 279; https://doi.org/10.3390/fluids7080279 - 15 Aug 2022
Cited by 7 | Viewed by 3592
Abstract
In the last decade, the drone market has grown rapidly for both civil and military purposes. Due to their versatility, the demand for drones is constantly increasing, with several industrial players joining the venture to transfer urban mobility to the air. This has [...] Read more.
In the last decade, the drone market has grown rapidly for both civil and military purposes. Due to their versatility, the demand for drones is constantly increasing, with several industrial players joining the venture to transfer urban mobility to the air. This has exacerbated the problem of noise pollution, mainly due to the relatively lower altitude of these vehicles and the proximity of their routes to extremely densely populated areas. In particular, both the aerodynamic and aeroacoustic optimization of the propulsive system and of its interaction with the airframe are key aspects of unmanned aerial vehicle design that can signify the success or the failure of their mission. The industrial challenge involves finding the best performance in terms of loading, efficiency and weight, and, at the same time, the most silent configuration. For these reasons, research has focused on an initial localization of the noise sources and, on further analysis, of the noise generation mechanism, focusing particularly on directivity and scattering. The aim of the present study is to review the noise source mechanisms and the state-of-the-art control strategies, available in the literature, for its suppression, focusing especially on the fluid-dynamic aspects of low Reynolds numbers of the propulsive system and on the interaction of the propulsive system flow with the airframe. Full article
(This article belongs to the Special Issue Aeroacoustics of Drones)
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