Aeroacoustic Study of the Interaction of a Rotating Blade with a Batchelor Vortex
| Autor: | Fabrice Falissard, Xavier Gloerfelt, Paul Zehner |
|---|---|
| Přispěvatelé: | ONERA - The French Aerospace Lab [Châtillon], ONERA-Université Paris Saclay (COmUE), ONERA - The French Aerospace Lab [Meudon], Laboratoire de Dynamique des Fluides (DynFluid), Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), DAAA, ONERA, Université Paris Saclay (COmUE) [Meudon], ONERA-Université Paris-Saclay, Laboratoire de Mecanique des Fluides et d'Acoustique (LMFA), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Blade (geometry)
Acoustics Batchelor vortex AEROACOUSTIQUE Aerospace Engineering Tourbillon 02 engineering and technology OPEN ROTOR PROPELLER Computational fluid dynamics 01 natural sciences [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] 010305 fluids & plasmas Physics::Fluid Dynamics symbols.namesake 0203 mechanical engineering Condensed Matter::Superconductivity 0103 physical sciences Physics [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] 020301 aerospace & aeronautics Computer simulation business.industry Angle of attack Mechanics Lamb–Oseen vortex Euler equations Vortex symbols TOURBILLON business Reynolds-averaged Navier–Stokes equations CFD Mécanique: Mécanique des fluides [Sciences de l'ingénieur] |
| Zdroj: | AIAA Journal AIAA Journal, American Institute of Aeronautics and Astronautics, 2018, 56 (2), pp.629-647. ⟨10.2514/1.J056100⟩ |
| ISSN: | 0001-1452 1533-385X |
| DOI: | 10.2514/1.J056100⟩ |
| Popis: | International audience; The aeroacoustic response of the orthogonal interaction of a rotating blade with an isolated Batchelor vortex is studied by means of numerical simulation. The relative influence of the vortex tangential and axial velocity on the blade aerodynamics and on the acoustics radiated in the far field is analyzed by comparing the interaction with a Batchelor vortex to the interactions considering the vortex tangential or axial velocity components. Analyses show that the vortex tangential velocity contributes mostly to the noise level at low frequencies, whereas the vortex axial velocity is responsible for the contribution at high frequencies. For the range of frequencies in between, the interaction noise results from constructive interferences of the noise radiated separately by each velocity component of the vortex. |
| Databáze: | OpenAIRE |
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