Acoustic and aerodynamic evaluation of DLR small-scale rotor configurations within GARTEUR AG26
Abstract This paper presents the activities performed in the GARTEUR Action Group HC/AG-26 to study the acoustic and aerodynamic characteristics of small rotor configurations, including the influence of the rotor-rotor interactions. This paper will focus on comparisons between numerical activities and wind tunnel results on a small rotor provided by DLR. The wind tunnel models included a Rotor/Rotor/Pylon in isolated, tandem and coaxial configuration. The wind tunnel experiments for acoustics were performed in DLR’s Acoustic Wind Tunnel Braunschweig (AWB) and PIV test were performed in CIRA within a joint CIRA/DLR test program. For simulations, the numerical approaches from each partner are applied. The aerodynamic simulations necessary for the aeroacoustic predictions are conducted with various fidelity numerical methods, varying from lifting line to CFD. The acoustic values on the microphone positions are evaluated using Ffowcs Williams/Hawking (FW-H) formulation by all partners. The acoustic and aerodynamic predictions are compared to test data, including performance, PIV and acoustic directivity.
Authors
- Alex Zanotti (ORCID: https://orcid.org/0000-0002-1727-8813)
- Claudio Testa (ORCID: https://orcid.org/0000-0002-2967-8291)
- Francesco Caccia (ORCID: https://orcid.org/0000-0003-1331-3455)
- A. Visingardi
- Junjun Yin (ORCID: https://orcid.org/0000-0002-1122-8903)
- Giovanni Bernardini (ORCID: https://orcid.org/0000-0003-1603-366X)
- Fabrizio De Gregorio (ORCID: https://orcid.org/0000-0003-3284-1704)
- M. Barbarino
- Manuel Keßler (ORCID: https://orcid.org/0000-0003-3884-1254)
- Giuseppe Ceglia (ORCID: https://orcid.org/0000-0002-1811-5397)
- Karl-Stéphane Rossignol (ORCID: https://orcid.org/0000-0002-8300-1919)
- Gabriel Reboul
- Francesco Petrosino (ORCID: https://orcid.org/0000-0002-7454-425X)
- Luca Abergo (ORCID: https://orcid.org/0000-0001-8372-7181)
- G. Qiao (ORCID: https://orcid.org/0000-0002-5220-1803)
- Alberto Savino (ORCID: https://orcid.org/0000-0001-9056-3939)
- Markus Muth (ORCID: https://orcid.org/0000-0002-5869-4581)
- Stefano Zaghi (ORCID: https://orcid.org/0000-0001-9834-9590)
- Caterina Poggi (ORCID: https://orcid.org/0000-0001-7942-0590)
- George N. Barakos (ORCID: https://orcid.org/0000-0002-5029-8453)
- Lukas Rottmann (ORCID: https://orcid.org/0009-0003-7953-467X)
- N. Oberti
- Alberto Guardone
Institutions
- University of Stuttgart (DE)
- Roma Tre University (IT)
- Office National d'Études et de Recherches Aérospatiales (FR)
- Italian Aerospace Research Centre (IT)
- Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR) (DE)
- Institute of Marine Engineering (IT)
- University of Glasgow (GB)
- Politecnico di Milano (IT)
Publication Details
- Journal
- CEAS Aeronautical Journal
- Published
- 2024-11-23
- DOI
- https://doi.org/10.1007/s13272-024-00790-2
- Citations
- 14
- Primary Topic
- Aerodynamics and Acoustics in Jet Flows
- Type
- article
- Field-Weighted Citation Impact
- 16.89
Funders
- Bundesministerium für Wirtschaft und Technologie