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CAA broadband noise prediction for aeroacoustic design
Abstract The current status of a computational aeroacoustics (CAA) approach to simulate broadband noise is reviewed. The method rests on the use of steady Reynolds averaged Navier–Stokes (RANS)Expand
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RANS/CAA based prediction of NACA 0012 broadband trailing edge noise and experimental validation
The prediction quality of a fast Computational Aeroacoustics (CAA) approach is studied for noise generated at a NACA 0012 trailing edge. Broadband spectra, the power law underlying their Mach numberExpand
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Reduction of Emitted Sound by Application of Porous Trailing Edges
The reduction of trailing edge sound by application of porous material at the rear part of a NACA0012 airfoil is investigated numerically. A simple, anisotropic porosity is used, namely narrowExpand
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The Effect of a Boundary Layer on Engine Noise propagating to the Fuselage at Flight Conditions
Engine noise transmitted through the fuselage causes a significant part of the cabin noise. In a previous work a Computational Aeroacoustics (CAA) technique was introduced that takes into account theExpand
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3D Computation of Broadband Slat Noise from Swept and Unswept High-Lift Wing Sections
In previous work a RANS based simulation technique for the simulation of broadband slat noise was established. Good agreement was found between predicted and measured slat noise spectra. TheseExpand
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Trailing-Edge Noise Data Quality Assessment for CAA Validation
The paper provides a detailed reexamination of previously published trailing-edge (TE) noise experimental data as acquired in DLR's low-noise open-jet Acoustic Wind Tunnel Braunschweig (AWB). TheExpand
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Generic Airfoil Trailing-Edge Noise Prediction using Stochastic Sound Sources from Synthetic Turbulence
A Computational Aeroacoustic (CAA) study is conducted for the simulation of broad- band trailing-edge noise radiated from a NACA0012 airfoil and a cambered non-symmetrical DU96 airfoil forExpand
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Direct Combustion Noise Simulation of a Lean Premixed Swirl Flame using Stochastic Sound Sources
A lean, swirl-stabilized gas turbine model combustor is simulated with a stochastic approach for combustion noise prediction. The employed hybrid and particle based method, FRPM-CN (Fast RandomExpand
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CAA-RPM prediction and validation of slat setting influence on broadband high-lift noise generation
Broadband sound generated at the slat of a three-element high-lift wing is simulated with a CAA method. Especially, the effect of different slat and gap settings is studied and the results areExpand
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