Zobrazeno 1 - 10 of 40 pro vyhledávání: '"AEROACOUSTIQUE"'
1
Simulations de Boltzmann sur réseau dans une configuration de cascade rectiligne pour l'évaluation et la réduction du bruit d'interaction turbulences-profil par des ondulations de bord d'attaque
Autor: Buszyk, Martin, Le Garrec, Thomas, Polacsek, Cyril, Barrier, Raphaël
Publikováno v: EURONOISE 2021
EURONOISE 2021, Oct 2021, Virtuel, Portugal
International audience; The turbulence-airfoil interaction mechanism is a dominant source of turbofan noise. A low-noise design based on leading edge serrations is proposed and will be tested in a rectilinear cascade configuration. Performances are a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::bdc601423daaea177ff379e89dc11520
https://hal.archives-ouvertes.fr/hal-03396128
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2
3D CAA methodology using synthetic turbulence to assess turbulence-cascade interaction noise emission and reduction from serrated airfoils
Autor: Raphaël Barrier, Cyril Polacsek, Thomas Le Garrec, Christophe Bailly, Martin Buszyk
Publikováno v: AIAA AVIATION 2021 FORUM
AIAA AVIATION 2021 FORUM, Aug 2021, VIRTUAL EVENT, France. ⟨10.2514/6.2021-2257⟩
International audience; The context of this study is the development of innovative stator concepts to reduce noise from rotor/stator interaction in future high bypass engines. Leading edge serrations are examined using a hybrid CFD/CAA method. A stoc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be9588f96029fa24515ec5e682673911
https://hal.archives-ouvertes.fr/hal-03368344/document
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3
Evaluation numérique des effets de confinement acoustique de bruit de fan dans une soufflerie en veine fermée
Autor: Thomas Le Garrec, Mathieu Lorteau
Publikováno v: AIAA AVIATION Forum
AIAA AVIATION Forum, Aug 2021, Virtuel, United States
International audience; This work investigates, through numerical simulations, the acoustic confinement effects of a modern turbofan noise bench installed in the ONERA S1MA wind-tunnel with a closed test section at low Mach number equipped with a ded
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f0bbba114023d6f68befe31f58945ee
https://doi.org/10.2514/6.2021-2302
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4
Prediction of RACER's Lateral Rotor Noise Using the CONCERTO Chain
Autor: Reboul, Gabriel, Bailly, Joëlle, Rottmann, Lukas, Bekemeyer, Philipp, Einarsson, Gunnar, Guntzer, Frédéric
Publikováno v: 77th Annual Forum & Technology Display
77th Annual Forum & Technology Display, May 2021, WEST PALM BEACH, United States
International audience; This paper is aimed to present a computational chain developed in the framework of the CleanSky 2 European CONCERTO project. This computational chain is devoted to the prediction of the noise emitted by the lateral rotors of t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a8779998ff236c996fa7e1105eb9a599
https://hal.archives-ouvertes.fr/hal-03236828/document
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5
ZONAL DETACHED EDDY SIMULATION OF THE FAN-OGV STAGE OF A MODERN TURBOFAN ENGINE
Autor: Cyril Polacsek, Raphaël Barrier, Benjamin François
Publikováno v: ASME Turbo Expo 2020
ASME Turbo Expo 2020, Sep 2020, Virtual, Online, United Kingdom
Volume 2A: Turbomachinery
The present article deals with the Zonal Detached Eddy Simulation of the fan module of a modern turbofan engine. The fan module, tested at the AneCom facility, is equipped with rotating fan blades and stationary outlet guide vanes (OGV). The simulati
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e020d001ebf8a5c24233cbd6705c5f7d
https://hal.archives-ouvertes.fr/hal-03048643/document
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6
Méthodes numériques d'identification des sources de bruit aérodynamique pour les trains d'atterrissage
Autor: Hajczak, Antoine
Publikováno v: Acoustique [physics.class-ph]. Sorbonne Université, 2020. Français
In the past decades, the aeronautic industry has faced the need to address the growing annoyance associated with air traffic noise. This PhD thesis investigates the contribution of landing gears, dominant during the landing phase of a typical modern
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2592::ce09b1202e822625921814fb2d18b414
https://hal.archives-ouvertes.fr/tel-03182019
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7
Assessment of a CAA methodology for turbulence-cascade interaction noise prediction and reduction from serrated airfoils
Autor: Buszyk, Martin, Polacsek, Cyril, Le Garrec, Thomas
Publikováno v: eForum Acusticum 2020
eForum Acusticum 2020, Dec 2020, Lyon, France. pp.2961-2968, ⟨10.48465/fa.2020.1141⟩
Forum Acusticum 2020
Forum Acusticum 2020, Jul 2020, lyon, France
International audience; The acoustic response of a rectilinear cascade subjected to a grid turbulence will be analysed experimentally in a laboratory facility at the Ecole Centrale de Lyon in the framework of the H2020 European project InnoSTAT (http
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::29c480c8b900676ca483a81d2e034564
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8
Influence of Blade Deformations on Open-Rotor Low-Speed and High-Speed Aerodynamics and Aeroacoustics
Autor: Fabrice Falissard, Patrick Gardarein, Alain Chelius, Sylvette Canard-Caruana, Yann Mauffrey, Ronan Boisard, Robert Gaveriaux, Gregory Delattre
Publikováno v: Journal of Aircraft
Journal of Aircraft, American Institute of Aeronautics and Astronautics, 2018, pp.1-15. ⟨10.2514/1.C034676⟩
International audience; This paper investigates by means of computational fluid dynamics (CFD) and acoustic analogy the influence of blade deformations on open-rotor aerodynamics and aeroacoustics for three key operating points: cruise, takeoff, and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3aca001f47897b8e6e13e6dd4069a6f6
https://doi.org/10.2514/1.c034676
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9
Aerodynamic and Aeroacoustic Numerical Investigation of Turbofan Engines using Lattice Boltzmann Methods
Autor: Hainaut, Thomas, Le Garrec, Thomas, Polacsek, Cyril, Mincu, Daniel, Deck, Sébastien
Publikováno v: AIAA AVIATION 2018
AIAA AVIATION 2018, Jun 2018, ATLANTA, United States. ⟨10.2514/6.2018-3922⟩
International audience; In recent years, lattice Boltzmann methods showed promising advantages over standard Navier-Stokes equation-based solvers. In this work, the capacity to predict both self noise and interaction noise is evaluated. First, a rod-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::c1f6927c28605ae5eef75783f617f6e1
https://hal.archives-ouvertes.fr/hal-02339485/document
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10
Vers une optimisation aéroacoustique avec méthode adjointe pour la réduction de bruit d'hélice
Autor: Chelius, Alain, el Din, Itham Salah, Koch, Régis
Publikováno v: ICSV26
ICSV26, Jul 2019, MONTREAL, Canada
International audience; The objective of the work described in this paper is to set up and validate an adjoint based method for blade shape optimisation aiming at propeller noise reduction. As a first step toward a comprehensive propeller noise optim
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2592::65fcc3ac673a80a2ff0105f696a608cf
https://hal.archives-ouvertes.fr/hal-02351403
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