Numerical Simulations of Fan Interaction Noise Using a Hybrid Approach

Polacsek, Cyril; Burguburu, S.; Redonnet, Stephane; Terracol, Marc

doi:10.2514/6.2005-2814

Cited by 8 publications

(9 citation statements)

References 14 publications

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“…The current calculations are performed with the ONERA code sAbrinA.v0 developed by Redonnet. [40][41][42] It solves the full Euler equations in the time domain, and applying a perturbation form that consists in a splitting of the conservative variables into a mean flow and a fluctuating field. These equations are cast in generalized curvilinear coordinates to simulate flows around complex bodies.…”

Section: Iva Caa Solver and Boundary Conditionsmentioning

confidence: 99%

Experimental and Numerical Investigation of Turbulence-Airfoil Noise Reduction Using Wavy Edges

Clair¹,

Polacsek²,

Garrec³

et al. 2013

AIAA Journal

148

104

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Section: Iva Caa Solver and Boundary Conditionsmentioning

confidence: 99%

Experimental and Numerical Investigation of Turbulence-Airfoil Noise Reduction Using Wavy Edges

Clair¹,

Polacsek²,

Garrec³

et al. 2013

AIAA Journal

148

104

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“…The acoustic generation and early propagation (stage 1) can be simulated with a compressible unsteady CFD approach, whether it involves DNS (Direct Numerical Simulation), LES (Large Eddy Simulation), unsteady Reynolds averaged NavierStokes equations, or a judicious mix of these techniques. The acoustic far-field radiation (stage 3) can be easily predicted with an Integral Method (IM), such as the well-known Kirchhoff 1 or FWH (Ffowcs Williams -Hawkings 2 ) integral techniques. The acoustic mid-field propagation (stage 2), can be neglected under certain special circumstances such as an isolated jet.…”

Section: Aerodynamic Noise Prediction and Hybrid Approachesmentioning

confidence: 99%

CFD-CAA Coupled Calculations of a Tandem Cylinder Configuration to Assess Facility Installation Effects

Redonnet¹,

Lockard

Khorrami

et al. 2011

17th AIAA/CEAS Aeroacoustics Conference (32nd AIAA Aeroacoustics Conference)

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“…Two integral methods are generally adopted. The classical Kirchhoff method [23] (see [24][25][26][27][28] and references therein) and the formulation of the Ffowcs Williams Hawkings method applicable to a permeable surface, see [29], Chap. 11.…”

Section: Literature Reviewmentioning

confidence: 99%

Noise radiation from a ducted rotor in a swirling-translating flow

Quaranta

Drikakis

2009

J. Fluid Mech.

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This paper investigates the noise radiation produced by a rotor inside a duct, which is convected by a swirling-translating mean flow. The study is based on an extension of Gennaretti's and Morino's boundary element method to the frequency domain for scattering problems in conjunction with a spinning rotor source model in the presence of a swirl flow. The proposed formulation is validated against exact solutions and is further used to investigate the effects of the translating flow Mach number and swirling flow angular velocity on noise radiation to the far field. The scattered sound is highly affected by the convecting mean flow. The modal content of the scattered field increases when increasing the translating flow Mach number, while a swirling flow leads to a reduction of the mode propagation, if co-rotating with respect to the azimuthal order of the spinning source, or an increase of the modal content, if counter-rotating with respect to the source. In general, the mean translating flow moves the main lobes of the directivity patterns downstream, while in some cases the mean swirling flow neglects this effect and the downstream lobe is completely shifted.

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Numerical Simulations of Fan Interaction Noise Using a Hybrid Approach

Cited by 8 publications

References 14 publications

Experimental and Numerical Investigation of Turbulence-Airfoil Noise Reduction Using Wavy Edges

Experimental and Numerical Investigation of Turbulence-Airfoil Noise Reduction Using Wavy Edges

CFD-CAA Coupled Calculations of a Tandem Cylinder Configuration to Assess Facility Installation Effects

Noise radiation from a ducted rotor in a swirling-translating flow

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