a collection of technical papers 12th aiaa/ceas ... aiaa-2006-2489 aiaa-2006-2490 aiaa-2006-2491...
TRANSCRIPT
A Collection ofTechnical Papers
12th AIAA/CEAS AEROACOUSTICSCONFERENCE
Volume 1
CAMBRIDGE, MASSACHUSETTS8-10 May 2006 TIB/UB Hannover 89
128 305 38X
A Collection of Papers from the12th AIAA/CEAS Aeroacoustics Conference
(27th AIAA Aeroacoustics Conference)Cambridge, Massachusetts
8-10 May 2006
Table of Contents
Paper No.
AIAA-2006-2400
AIAA-2006-2401
AIAA-2006-2402
AIAA-2006-2403
AIAA-2006-2404
AIAA-2006-2405
AIAA-2006-2406
AIAA-2006-2407
AIAA-2006-2408
Title and Author Page Number
A Self-Powered Wireless Active Acoustic LinerS. Kadirvel, F. Liu, S. Horowitz, T. Nishida, K. Ngo, L. Cattafesta,and M. Sheplak 1
Experimental Study of Acoustic Impedance of MEMS-BasedMicro-Perforated LinersV. Chandrasekharan, M. Sheplak, and L. Cattafesta 11
Cascaded Perforates as One-Dimensional, Bulk AbsorbersT. Parrott and M. Jones 26
Assessment of Bulk Absorber Properties for Multi-LayerPerforates in Porous Honeycomb LinersM. Jones and T. Parrott 46
Experimental Investigation of Nonlinear Acoustic Properties forPerforatesH. Boden, Y. Guo, and H. Tozun 67
The Sound Absorbing Potential of Carbon-Graphite FoamR. Gaeta 75
Self-Sustained Oscillations in Shock Wave/Turbulent BoundaryLayer InteractionS. Pirozzoli and F. Grasso 89
Correlation Characteristics of the Pressure-Fluctuations atShock-Boundary Layer InteractionB. Efimtsov, N. Kozlov, and A. Andersson 103
Sound and Vibration Produced by an Airfoil Tip in a TurbulentBoundary Layer Flow with an Elastic End WallP. Slaboch and S. Morris 113
AIAA-2006-2409
AIAA-2006-2410
AIAA-2006-2411
AIAA-2006-2412
AIAA-2006-2413
AIAA-2006-2414
AIAA-2006-2415
AIAA-2006-2416
AIAA-2006-2417
AIAA-2006-2418
AIAA-2006-2419
AIAA-2006-2420
AIAA-2006-2421
Rough Wall Boundary Layer NoiseD. Grissom, B. Smith, W. Devenport, and S. Glegg 121
Characteristic Lifelength of Coherent Structure in the TurbulentBoundary LayerD. Palumbo 137
Sound Level Effect on Perforated Panel Boundary Layer GrowthJ. Gallman, M. Drouin, and R. Olsen 153
Prediction of Boundary Layer Sound Radiation from Wall ShearStresses Using DNS DataZ. Hu, C. Morfey, and N. Sandham 166
Shock-Capturing Dissipation Schemes for High-AccuracyComputational Aeroacoustics (CAA) CodesR. Hixon, D. Bhate, M. Nallasamy, and S. Sawyer 176
Aeroacoustic Computations Using a High Order ShockCapturing SchemeV. Daru and X. Gloerfelt 187
A New High-Resolution Balance-Characteristic Method forAeroacousticsS. Karabasov, V. Goloviznin, T. Kozubskaya, and I. Abalakin 190
Non-Reflecting Boundary Conditions for One-Step LBMSimulation of AeroacousticsE. Kam, R. So, and R. Leung 205
CAA Using 3D CESE Method with a Simplified Courant NumberInsensitive SchemeJ. Yen, E. Duell, and W. Martindale 214
Aeroacoustic Simulations for Complex Geometries Based onHybrid MeshesF. Lorcher, J. Utzmann, M. Dumbser, and C. Munz 231
The Influence of Flow Domain Modeling on the Accuracy ofDirect and Hybrid Aeroacoustic Noise CalculationsW. De Roeck, G. Rubio, M. Baelmans, P. Sas, and W. Desmet 251
The Prediction of Fan Exhaust Noise PropagationY. Zhao and P. Morris 272
Numerical Prediction of Propagation and Radiation of Aft Fanand Core Nozzle NoiseR. Arina 288
AIAA-2006-2423
AIAA-2006-2424
AIAA-2006-2426
AIAA-2006-2427
AIAA-2006-2428
AIAA-2006-2429
AIAA-2006-2430
AIAA-2006-2431
AIAA-2006-2432
AIAA-2006-2433
AIAA-2006-2434
AIAA-2006-2435
AIAA-2006-2436
AIAA-2006-2437
A 3D Parabolic Equation Method for Wind Turbine NoisePropagation in Moving Inhomogeneous AtmosphereR. Cheng, P. Morris, and K. Brentner 296
Leading Edge NoiseS. Glegg, J. Staubs, and W. Devenport 310
A Parametric Study of Nonlinear Gust-Airfoil InteractionV. Golubev, R. Mankbadi, M. Visbal, J. Scott, and R. Hixon 341
Analysis of Control Concepts for Cavity FlowsS. Arunajatesan, C. Kannepalli, and N. Sinha 354
Flow Field Dynamics in Open Cavity FlowsN. Murray and L. Ukeiley 364
An Investigation into Supersonic Swept Cavity FlowsS. Gai, E. Samanes, and J. Milthorpe 380
Coupling of a Jet-Slot Oscillator With the Flow-Supply Duct:Flow-Acoustic Interaction ModelingM. Glesser, A. Billon, V. Valeau, and A. Sakout 390
Two and Three Dimensional Simulations of Supersonic CavityFlowH. Kim, S. Aradag, and D. Knight 399
Compressible POD/Galerkin Reduced-Order Model of Self-Sustained Oscillations in a CavityX. Gloerfelt 417
Aeroacoustic Computations of High-Reynolds Number CavityFlows on Staggered GridsX. Gloerfelt 445
Reducing Propulsion Airframe Aeroacoustic Interactions withUniquely Tailored Chevrons: 2. Installed NozzlesV. Mengle, R. Elkoby, L. Brusniak, and R. Thomas 466
Reducing Propulsion Airframe Aeroacoustic Interactions withUniquely Tailored Chevrons: 3. Jet-Flap InteractionV. Mengle, L. Brusniak, R. Elkoby, and R. Thomas 480
Computational Analysis of a Chevron Nozzle Uniquely Tailoredfor Propulsion Airframe AeroacousticsS. Massey, A. Elmiligui, C. Hunter, R. Thomas, P. Pao,and V. Mengle 495
Novel In-flight Noise Analysis SystemF. Hutto and E. Bultemeier 518
AIAA-2006-2438
AIAA-2006-2439
AIAA-2006-2440
AIAA-2006-2441
AIAA-2006-2442
AIAA-2006-2443
AIAA-2006-2444
AIAA-2006-2445
AIAA-2006-2447
AIAA-2006-2449
AIAA-2006-2450
AIAA-2006-2451
AIAA-2006-2452
Flight Test Results for Uniquely Tailored Propulsion-AirframeAeroacoustic Chevrons: Community NoiseE. Nesbitt, V. Mengle, B. Callender, R. Thomas, and M. Czech 523
Flight Test Results for Uniquely Tailored Propulsion-AirframeAeroacoustic Chevrons: Shockcell NoiseV. Mengle, U. Ganz, E. Nesbitt, E. Bultemeier, and R. Thomas 536
Effect of Uniform Chevrons on Cruise Shockcell NoiseE. Bultemeier, U. Ganz, J. Premo, and E. Nesbitt 553
A Comparative Use of the PSE and LES Approaches for JetNoise PredictionsE. Piot, G. Casalis, and F. Muller 568
An Approach to Improve High Frequency Noise Prediction inLES of JetsX. Wu, G. Page, and J. McGuirk 581
Computation of the Noise Radiated by Jets withLaminar/Turbulent Nozzle-Exit ConditionsS. Barre, C. Bogey, and C. Bailly 594
Phased-Array Imaging of Jet Noise Sources in a Large-EddySimulationL. Brusniak, M. Shur, and P. Spalart 609
Computation of the Flow and Noise of Round and BeveledNozzlesK. Viswanathan, M. Shur, M. Strelets, and P. Spalart 628
Direct Computation of the Sound Generated by Isothermal andNon-Isothermal Mixing LayersC. Moser, E. Lamballais, and Y. Gervais 658
Accurate Prediction of Sonic Boom SignalsA. Pilon 671
Effect of Pressure Distortion and Sampling Rate on ShapedSonic Boom PredictionsK. Laflin 681
Ray Tracing for Long Range Atmospheric Propagation ofInfrasoundO. Gainville, P. Blanc-Benon, P. Piserchia, and J. Scott 694
Sonic Boom Prediction: A New Empirical Formulation andAnimated Graphical ModelA. Clare and R. Oman 695
AIAA-2006-2453
AIAA-2006-2455
AIAA-2006-2456
AIAA-2006-2458
AIAA-2006-2459
AIAA-2006-2460
AIAA-2006-2461
AIAA-2006-2462
AIAA-2006-2463
AIAA-2006-2464
AIAA-2006-2465
AIAA-2006-2467
Acoustic Characterization of a Pulse Detonation EngineA. Glaser, N. Caldwell, and E. Gutmark 709
Zero Splice Intake Technology and Acoustic BenefitsF. Gantie, H. Batard, N. Baker, and P. Schwaller 720
Far-field Directivity of Rotor-Alone Tones Radiated From FanIntakes with Spliced Liners for Different Intake Shapes, withFlowB. Tester and L. De Mercato 729
Quiet Technology Demonstrator 2 Intake Liner Design andValidationJ. Yu, E. Nesbitt, H. Kwan, S. Uellenberg, E. Chien, J. Premo,M. Ruiz, and M. Czech 747
Scattering of Acoustic Duct Modes by Axial Liner SplicesC. Tarn, H. Ju, and E. Chien 760
Nonlinear Modeling of Shock Wave Trains in Ducts with WallDiscontinuitiesJ. Alonso, J. Anderson, and R. Burdisso 784
Application of a Piston Radiation Model to Liner Non-Uniformities and Rigid SplicesJ. Alonso and R. Burdisso 798
Static and Flight Aeroacoustic Evaluations of a Scarf InletD. Weir, B. Bouldin, and J. Mendoza 808
Aero-Engine Noise Investigated from Flight TestsS. Guerinand U. Michel 827
Reduction of Approach Noise of the MD-11H. Siller, U. Michel, C. Zwiener, and G. Saueressig 839
Measurement of Approach Noise Footprints of a C-17 STOLAircraft During Conventional and Noise-Mitigating ApproachTrajectoriesW. Home, N. Bumside, C. Kitaplioglu, D. Schein, A. Welborn,and A. Liddle 852
Reducing Propulsion Airframe Aeroacoustic Interactions withUniquely Tailored Chevrons: 1. Isolated NozzlesV. Mengle, R. Elkoby, L. Brusniak, and R. Thomas 872
AIAA-2006-2468
AIAA-2006-2469
AIAA-2006-2471
AIAA-2006-2472
AIAA-2006-2473
AIAA-2006-2474
AIAA-2006-2475
AIAA-2006-2476
AIAA-2006-2477
AIAA-2006-2479
AIAA-2006-2480
AIAA-2006-2483
AIAA-2006-2484
Computational Analysis of the Effect of Porosity on Shock CellStrength at CruiseS. Massey, A. Elmiligui, R. Thomas, P. Pao, K. Abdol-Hamid,and C. Hunter 890
Optimized Boundary Compact Finite Difference Schemes forComputational AeroacousticsJ.Kim 908
Analysis of Aeroacoustic Wave Propagation Simulations Usinga Higher-Order Accurate MethodG. Efraimsson and C. Biela 922
Applications of Dual-Time Stepping and Finite-Volume Schemesin Computational AeroacousticsW. Lin 932
Improving an Unstructured CFD Solver for AeroacousticsApplicationsP. Geuzaine, L. Georges, S. Bogaerts, K. Hillewaert, and S. Caro....947
Noise Scattering by the Blended Wing Body Airplane:Measurements and PredictionC. Reimann, A. Tinetti, and M. Dunn 952
Prediction of Sound Scattered by Moving Bodies withApplications to Propeller-Driven AirplanesC. Testa, M. Gennaretti, and U. lemma 969
Experimental Investigation Into Trailing Edge Noise SourcesA. Garcia-Sagrado, T. Hynes, and H. Hodson 981
Incident Turbulence Interaction Noise from an Axial FanD. Fedala, S. Kouidri, R. Rey, T. Carolus, and M. Schneider 1003
Noise Validation of Model Fan Rig with EngineP. Schwaller, N. Baker, D. Tomlinson, P. Sijtsma, and R. Hemmings1014
Space-Time Correlations and Trailing Edge Flow Structure inFan-Blade Wakes with Trailing Edge BlowingA. Borgoltz, W. Devenport, and L. Craig 1026
Leapfrogging of Two Vortex-Rings as Test Case for VolumeSource ComputationsM. Jacob, A. Benyahia, D. Casalino, D. Eschricht, and F. Thiele 1055
A Look Inside the Lighthill Source TermM. Cabana, V. Fortune, and P. Jordan 1068
AIAA-2006-2485
AIAA-2006-2486
AIAA-2006-2488
AIAA-2006-2489
AIAA-2006-2490
AIAA-2006-2491
AIAA-2006-2492
AIAA-2006-2493
AIAA-2006-2494
AIAA-2006-2495
AIAA-2006-2496
AIAA-2006-2497
From Primitive-Variable Boundary-Integral Formulation to FWHEquationL. Morino 1087
Propagation and Stability of Vorticity-Entropy Waves in aNonuniform Flow0. Atassi 1097
Evaluation of Far-Field Sound with Open Surface Corrections toLighthill's EquationL. Cheung and S. Lele 1122
Direct Simulation of Acoustic Waves Emitted from MovingBodies by the Finite Difference Lattice Boltzmann MethodA. Tamura and M. Tsutahara 1137
TBL Noise Generated by a Simplified Side Mirror Configurationand Acoustic Transfer Through the Window: Modelling UsingActran and FluentS. Caro, A. Ramonda, F. Perot, S. Vergne, and M. Pechabat 1146
Interior Noise Sources Identifications, In-Flight Measurementsand Numerical Correlations of an Advanced Business AircraftF. Marulo, A. Sollo, M. Aversano, G. Russo, and T. Polito 1169
Hermite High-Order Finite Elements for Aeroacoustic AnalysisL. Morino and F. Cetta 1176
Simulation of Aero-acoustic Sources in Aircraft Climate ControlSystemsF. Mathey, O. Morin, B. Caruelle, and K. Debatim 1189
Experimental and Numerical Investigation of a Flow-InducedCavity Resonance with Application to Automobile BuffetingB. Crouse, S. Senthooran, D. Freed, G. Balasubramanian,M. Gleason, M. Puskarz, P. Lew, and L. Mongeau 1198
Investigating Broadband Shock-Associated Noise ofAxisymmetric Jets Using Large-Eddy SimulationD. Bodony, J. Ryu, P. Ray, and S. Lele 1216
Large Eddy Simulation of Screech Tone Generation in a PlanarUnderexpanded JetJ. Beriand, C. Bogey, and C. Bailly 1227
Large-Eddy Simulation of Hot Coaxial Jets1. Tristanto, G. Page, and J. McGuirk 1251
AIAA-2006-2499
AIAA-2006-2500
AIAA-2006-2501
AIAA-2006-2502
AIAA-2006-2503
AIAA-2006-2504
AIAA-2006-2505
AIAA-2006-2507
AIAA-2006-2508
AIAA-2006-2509
AIAA-2006-2510
AIAA-2006-2511
AIAA-2006-2512
High Frequency Noise Generation in the Near-Nozzle Region ofa JetA. Uzun and M. Hussaini 1264
Investigation Of The Noise From Cold And Heated SubsonicJetsP. Moore and B. Boersma 1296
Adjoint-Based Control of the Noise from a Turbulent MixingLayerR. Kleinman and J. Freund 1306
Numerical Simulation of the Generation of Airfoil Tones atModerate Reynolds NumbersC. Tarn and H. Ju 1316
Direct Noise Computation Around a 3-D NACA 0012 AirfoilO. Marsden, C. Bogey, and C. Bailly 1339
Direct Numerical Simulation of Noise from an Airfoil in aUniform FlowN. Hatakeyama and O. Inoue 1350
Computation of Trailing-Edge Noise Using a Zonal RANS-LESApproach and Acoustic AnalogyF. Mathey 1361
Transmission of Acoustic Perturbation Through Cavity/Slots inan Airfoil for Stall ControlK. Zaman and D. Culley 1369
Cavity Noise Generation for Circular and Rectangular VentHolesM. Czech, J. Crouch, R. Stoker, M. Strelets, and A. Garbaruk 1381
Generic Wind Tunnel Study on Side Edge NoiseR. Drobietzand I. Borchers 1394
Effects of Surface Roughness on Airframe NoiseY. Liu, A. Dowling, and H. Shin 1405
Unsteady Boundary Control for Optimal Control of TrailingEdge NoiseG. Chen and M. Hussaini 1426
A Combined RANS/Vortex Method for Predicting Noise fromVortex/Airfoil InteractionsZ. Zheng and Y. Xu 1443
AIAA-2006-2513
AIAA-2006-2514
AIAA-2006-2515
AIAA-2006-2516
AIAA-2006-2517
AIAA-2006-2518
AIAA-2006-2519
AIAA-2006-2520
AIAA-2006-2521
AIAA-2006-2522
AIAA-2006-2523
AIAA-2006-2524
AIAA-2006-2525
Prediction of Flat Plate Self-NoiseK. Chang, J. Seo, Y. Moon, and M. Roger 1451
DNS of Trailing-Edge Noise Generated by Boundary-LayerInstabilitiesR. Sandberg, N. Sandham, and P. Joseph 1465
Aeroacoustic Study of Airfoil Leading Edge High-Lift DevicesC. Andreou, W. Graham, and H. Shin 1478
Prediction of Sound Generated by a Pitching Airfoil: AComparison of RANS and LESS. Nagarajan, S. Hahn, and S. Lele 1491
The Computational Investigation of Resonant Sound-AbsorbingStructures ModelsV. Baklanov, A. Zayakin, E. Orlenko, and S. Postnov 1504
Investigation of Vortex Sound Propagation Using a FEImplementationM. Escobar, M. Kaltenbacher, I. Ali, and S. Becker 1509
Simulation of Acoustic Fields in Resonator-Type ProblemsUsing Unstructured MeshesI. Abalakin, A. Gorobets, T. Kozubskaya, and A. Mironov 1520
Validation and Application of a Hybrid Prediction Scheme forBypass Duct NoiseR. Sugimoto and J. Astley 1530
PML Absorbing Boundary Condition for NonlinearAeroacoustics ProblemsF. Hu, X. Li, and D. Lin 1543
Cartesian Cut-Cell Method with Local Grid Refinement for WaveComputationsM. Popescu, W. Shyy, and C. Tai 1558
A Statistical Approach to Optimum Design of Inlet AcousticTreatmentG. Zlavog and W. Eversman 1577
Optimization of an Electromechanical Helmholtz ResonatorF. Liu, S. Horowitz, L. Cattafesta, and M. Sheplak 1602
Optimisation of Traditional and Blown Liners for a SilentAircraftT. Law and A. Dowling 1614
AIAA-2006-2527
AIAA-2006-2528
AIAA-2006-2529
AIAA-2006-2530
AIAA-2006-2531
AIAA-2006-2532
AIAA-2006-2533
AIAA-2006-2534
AIAA-2006-2535
AIAA-2006-2536
AIAA-2006-2537
AIAA-2006-2538
AIAA-2006-2539
Comparison of Time-Domain Impedance Boundary Conditionsby Lined Duct FlowsC. Richter, F. Thiele, X. Li, and M. Zhuang 1631
A Computational Mode Matching Approach for Propagation inThree-Dimensional Ducts with FlowR. Astley, V. Hii, and G. Gabard 1652
Investigation of a Single-Point Nonlinearity Indicator in thePropagation of High-Amplitude Jet NoiseL Falco, A. Atchley, and K. Gee 1675
On the Perception of Crackle in Noise Radiated from Military JetAircraftK. Gee, V. Sparrow, A. Atchley, and T. Gabrielson 1681
Measurement and Prediction of Noise Propagation from a High-Power Jet AircraftK. Gee, V. Sparrow, M. James, J. Downing, C. Hobbs,T. Gabrielson, and A. Atchley 1690
Density Fluctuations in a Supersonic JetC. Stern, C. Aguilar, and M. Alvarado 1698
An Experimental Investigation of Density Gradient Fluctuationsin High-Speed Jets Using Optical DeflectometryB. Petitjean, D. McLaughlin, and P. Morris 1705
Effect of Heat on Space-Time Correlations in JetsJ. Bridges 1722
Experimental and Numerical Investigation of the Near FieldPressure of a High Subsonic Hot JetF. Muller, F. Vuillot, G. Rahier, G. Casalis, and E. Piot 1738
Wake Acoustic Analysis and Image Decomposition viaBeamforming of Microphone Signal Projections on WaveletSubspacesH. Wassaf, Y. Zhang, and O. Ibe 1752
Use of a Commercial Wind SODAR for Measuring Wake VorticesS. Mackeyand D. Burnham 1768
Influence of Vortex Core on Wake Vortex Sound EmissionZ. Zheng, W. Li, F. Wang, and H. Wassaf 1779
Atmospheric Effects on Microphone Array Analysis of AircraftVortex SoundH. Wassaf, J. Hardin, and F. Wang 1793
AIAA-2006-2540
AIAA-2006-2542
AIAA-2006-2543
AIAA-2006-2546
AIAA-2006-2550
AIAA-2006-2551
AIAA-2006-2553
AIAA-2006-2554
AIAA-2006-2555
AIAA-2006-2558
AIAA-2006-2559
AIAA-2006-2560
Scale Model Testing of Infrasound Produced by Various JetEngine Test Cell ConfigurationsK. Hatlestad 1802
A Contribution to the Understanding and Prediction of Jet NoiseGeneration by Forced Mixers: Part III ApplicationsB. Tester and M. Fisher 1809
An MDOE Assessment of Nozzle Vanes for High Bypass RatioJet Noise ReductionB. Henderson, T. Norum, and J. Bridges 1831
Variable Geometry Chevrons for Jet Noise ReductionF. Calkins, G. Butler, and J. Mabe 1841
Measurement of Acoustic Quantity Fields in Duct Flow by LaserDoppler VelocimetryM. Lavieille, F. Simon, and F. Micheli 1852
RACE Aero Acoustic Test Facility: Fan Forward and Rearward3D Noise MeasurementsN. Genoulaz, J. Julliard, C. Lozachmeur, and C. Caujolle 1861
Potential Errors Introduced in the use of Static Engine NoiseData not Acquired in Geometric FarfieldK. Ahuja and N. Turkdogru 1879
A Method to Account for Engine Noise Component SourceLocationsM. Salikuddin, D. Stimpert, and R. Majjigi 1895
Numerical Study of Aeroacoustic Oscillations in a TransonicFlow Downstream a Sudden Duct EnlargementT. Emmert, P. Lafon, and C. Bailly 1912
The Sub-Critical Flow Past a Generic Side Mirror and its Impacton Sound Generation and PropagationJ. Ask and L. Davidson 1925
Prediction of Wall Pressure Fluctuations on an AutomobileSide-Glass Using a Lattice Boltzmann MethodS. Senthooran, B. Crouse, S. Noelting, D. Freed, B. Duncan,G. Balasubramanian, and R. Powell 1945
Simulation of the Acoustics Behind a Wall Due to a MovingVehicleM. Aberg, R. Szasz, and L. Fuchs 1960
AIAA-2006-2561
AIAA-2006-2562
AIAA-2006-2563
AIAA-2006-2564
AIAA-2006-2565
AIAA-2006-2566
AIAA-2006-2567
AIAA-2006-2568
AIAA-2006-2569
AIAA-2006-2570
AIAA-2006-2571
AIAA-2006-2572
AIAA-2006-2573
Localisation of Flap Edge Sound Sources by Use of SpectralAnalysis and Flow InvestigationC. Tiedemann, G. Neuwerth, and R. Henke 1972
Low Noise Design Trends Derived from Wind Tunnel Testing onAdvanced High-Lift DevicesM. Fischer, H. Friedel, H. Holthusen, B. Golling, and R. Emunds....1986
Effect of Blade Design at Equal Loading on Broadband NoiseY. Rozenberg, M. Roger, and S. Moreau 2001
Airframe Noise Prediction by Acoustic Analogy: RevisitedF. Farassat, J. Casper, A. Tinetti, and M. Dunn 2021
Phased Array Measurement of High Lift Devices in Low SpeedWind TunnelH. Ura, Y. Yokokawa, and T. Ito 2045
Acoustic Beamforming and Holography Measurements ofModified Boundary Layer Trailing-Edge NoiseA. Faszer, T. Hynes, C. Blaabjerg, and H. Shin 2056
Airframe Noise Characteristics from Flyover Measurements andPredictionM. Pott-Pollenske, W. Dobrzynski, H. Buchholz, S. Guerin,G. Saueressig, and U. Finke 2069
Dicontinuous Galerkin Method for Computational AeroacousticsC. Peyret and P. Delorme 2083
Discontinuous Galerkin Implementation of the ExtendedHelmholtz Resonator Model in Time DomainN. Chevaugeon, J. Remade, and X. Gallez 2091
Direct Simulation of Acoustic Waves by Finite Volume LatticeBoltzmann MethodM. Tsutahara, T. Kondo, and K. Mochizuki 2111
Fundamental Aeroacoustic Capabilities of the Lattice-Boltzmann MethodB. Crouse, D. Freed, S. Senthooran, G. Balasubramanian, P. Lew,and L. Mongeau 2120
A Hermite-Taylor Algorithm for Simulating Subsonic ShearFlowsT. Hagstrom, J. Goodrich, and G. Zhu 2137
Aerodynamic Noise Prediction for Long-Span BodiesJ. Seo, K. Chang, and Y. Moon 2151
AIAA-2006-2574
AIAA-2006-2575
AIAA-2006-2576
AIAA-2006-2577
AIAA-2006-2578
AIAA-2006-2579
AIAA-2006-2580
AIAA-2006-2581
AIAA-2006-2582
AIAA-2006-2583
AIAA-2006-2584
AIAA-2006-2585
AIAA-2006-2586
An Attempt to Calculate Acoustic Directivity Using LBMR. Leung, R. So, E. Kam, andX. Li 2167
Rotational Effects on the Aerodynamics and Aeroacoustics ofWind Turbine AirfoilsS. Miller and P. Morris 2175
Large Eddy Simulation of Gust Noise Sources in a LowPressure Axial CompressorH. Reese, C. Kato, and T. Carolus 2189
Acoustic Monitoring of Axial Compressor Rotor BladeVibrationsJ. Anderson, S. Bailie, and W. Ng 2204
Noise Reduction and Efficiency Improvement Through VaneIndexing of a Two-Stage TurbineJ. Blaszczak 2221
Sound Generation in Centrifugal CompressorsT. Raitorand W. Neise 2230
Procedure for Separating Noise Sources in Measurements ofTurbofan Engine Core NoiseJ. Miles 2249
Restricted Acoustic Modal Analysis Applied to InternalCombustor Spectra and Cross-Spectra MeasurementsJ. Miles 2265
Sound Transmission in Strongly-Curved Slowly-VaryingCylindrical and Annular Lined Ducts with FlowE. Brambley and N. Peake 2292
Continuous Spectrum Growth and Modal Instability in SwirlingDuct FlowC. Heaton and N. Peake 2310
Mode Matching in Engine Ducts with Vortical FlowsG. Vilenski 2325
Development and Validation of a 3D Linearized Euler SolverJ. Lan and C. Breard 2336
Further Investigation of Acoustic Propagation Codes for Three-Dimensional GeometriesD. Nark, W. Watson, and M. Jones 2361
AIAA-2006-2587
AIAA-2006-2588
AIAA-2006-2589
AIAA-2006-2590
AIAA-2006-2592
AIAA-2006-2593
AIAA-2006-2595
AIAA-2006-2596
AIAA-2006-2597
AIAA-2006-2598
AIAA-2006-2599
AIAA-2006-2600
AIAA-2006-2601
CDUCT-LaRC Status - Shear Layer Refraction, and NoiseRadiationD. Nark and F. Farassat 2378
New Advances in the Use of Actran/TM for Nacelle Simulationsand Optimisation of IBM Clusters for Actran ParallelComputationsA. Mosson, S. Caro, M. Gontier, T. Knapen, L. Enault,and S. Drouilhet-Peyre 2397
A study in the near pressure field of co-axial subsonic jetsC. Tinney, P. Jordan, F. Coiffet, A. Guitton, and J. Delville 2409
Superdirective Acoustic Radiation by Vortex Pairing inSubsonic Excited JetsV. Fleury, C. Bailly, and D. Juve 2432
Noise Generation Mechanisms in Single and Coaxial JetsE. Groschel, W. Schroder, and M. Meinke 2448
Comparison of Jet Noise ModelsM. Afsar, A. Dowling, and S. Karabasov 2466
Experimental Validation of Instability Wave Theory for RoundSupersonic JetV. Kopiev, S. Chernyshev, M. Zaitsev, and V. Kuznetsov 2480
Prediction of Noise from High Speed Subsonic Jets Using anAcoustic AnalogyN. Raizada and P. Morris 2504
Unstructured CFD and Noise Prediction Methods for PropulsionAirframe AeroacousticsS. Pao, K. Abdol-Hamid, R. Campbell, C. Hunter, S. Massey,and A. Elmiligui 2526
Improved Jet Noise Modeling Using a New Acoustic Time ScaleM. Azarpeyvand, R. Self, and J. Golliard 2542
RANS-Based Noise Predictions of Jets with Internal ForcedMixersL. Garrison, A. Lyrintzis, and G. Blaisdell 2553
Noise Predictions for Chevron Nozzle FlowsS. Birch, D. Lyubimov, V. Maslov, and A. Secundov 2574
Pulsed Microjet Control of Supersonic Impinging Jets: AReduced-Order ModelJ. Choi, A. Annaswamy, and F. AM , 2584
AIAA-2006-2602
AIAA-2006-2603
AIAA-2006-2604
AIAA-2006-2605
AIAA-2006-2606
AIAA-2006-2607
AIAA-2006-2608
AIAA-2006-2609
AIAA-2006-2610
AIAA-2006-2611
AIAA-2006-2612
AIAA-2006-2613
AIAA-2006-2614
A Review of Axisymmetric Jet Flow Data for Noise ApplicationsS. Birch 2598
Integrated Aero-Acoustic Rotor Simulation and DesignOptimizationS. Xue, B. Docker, J. Narramore, and Z. Han 2613
Helicopter Interior Noise Reduction by Using Active GearboxStrutsF. Hoffmann, R. Maier, P. Janker, F. Hermle, and A. Berthe 2625
On Propeller Acoustics Design Synthesis Using SourceDistributions Along Blade SpanL. Campos and F. Lau 2635
Aeroelastic Modeling Effect in Rotor BVI Noise PredictionG. Bernardini, J. Serafini, S. lanniello, and M. Gennaretti 2651
Vortex-Shedding Noise and Potential-Interaction NoiseModeling by a Reversed Sears' ProblemM. Roger, S. Moreau, and A. Guedel 2660
Numerical Analysis of Noise Scattering Effects Due to theAirframe in Tilt Rotor SystemsD. Casalino, M. Genito, and A. Visingardi 2678
Comparison of Noise Reduction Effect Between AFC andConventional IBC by Moving Overlapped Grid MethodT. Aoyama, C. Yang, N. Kondo, and S. Saito 2694
The Influence of the Flame Structure on the CombustionOscillations in a Cylindrical ChamberP. Lacava, J. Carvalho, D. Ferreira, and M. Ferreira 2706
Adaptive Control of a Combustion Acoustics Model with InputSaturation Using Control HedgingR. Bansal and N. Ananthkrishnan 2716
Premixed Combustion Noise: Measurements and CorrelationsR. Rajaram, J. Gray, and T. Lieuwen 2731
Experimental and Numerical Investigation of the Acoustic Fieldin a Bluff Body CombustorR. Sivakumar, S. Chakravarthy, and V. Babu 2740
Prediction of Combustion-Generated Noise in Non-PremixedTurbulent Jet Flames Using LESM. Ihme, D. Bodony, and H. Pitsch 2753
AIAA-2006-2615
AIAA-2006-2617
AIAA-2006-2618
AIAA-2006-2619
AIAA-2006-2620
AIAA-2006-2621
AIAA-2006-2622
AIAA-2006-2623
AIAA-2006-2625
AIAA-2006-2626
AIAA-2006-2627
AIAA-2006-2628
AIAA-2006-2629
Time Resolved Combustion Noise Investigation Based on aWave Equation ApproachF. Flemming, M. Freitag, A. Sadiki, and J. Janicka 2769
Aft Fan Noise Shielding by Lifting Surfaces : Analytical,Numerical and Experimental ResultsJ. Chappuis, J. Ricouard, and M. Roger 2782
A Ray Tracing Approach to Calculate Acoustic Shielding by theSilent Aircraft AirframeA. Agarwal, A. Dowling, H. Shin, and W. Graham 2799
Aircraft Conceptual Design and Risk Analysis Using Physics-Based Noise PredictionE. Olson and D. Mavris 2819
Auralisation of Turbofan Engine Noise ComponentsH. Shin, C. Hall, and D. Crichton 2841
Optimal Conceptual Design of Aircraft Including CommunityNoise PredictionU. lemma and M. Diez 2855
The Low-Noise Potential of Distributed Propulsion on aCatamaran AircraftJ. Posey, M. Dunn, and A. Tinetti 2865
Prediction of Low Noise Aircraft Landing Gears andComparison with Test ResultsN. Molin, J. Piet, L. Chow, M. Smith, W. Dobrzynski, and C. Seror..2878
Aerodynamic Measurements of the 777 Main Landing GearModelA. Ringshia, P. Ravetta, W. Ng, and R. Burdisso 2888
Control of Noise Sources on Aircraft Landing Gear BogiesM. Smith, B. Fenech, L. Chow, N. Molin, W. Dobrzynski,andC. Seror 2902
A Semi-Empirical Model for Aircraft Landing Gear NoisePredictionY. Guo 2912
Prediction of Sound Generated by a Rod-Airfoil ConfigurationUsing a Cubic Explicit Algebraic Stress Model for DetachedEddy Simulation and the Generalised Lighthill/FW-H AnalogyB. Greschner, A. Gurr, F. Thiele, D. Casalino, and M. Jacob 2931
Noise Radiation from Single and Multiple Rods ConfigurationsF. Hutcheson and T. Brooks 2943
AIAA-2006-2631
AIAA-2006-2632
AIAA-2006-2633
AIAA-2006-2634
AIAA-2006-2635
AIAA-2006-2636
AIAA-2006-2637
AIAA-2006-2638
AIAA-2006-2639
AIAA-2006-2640
AIAA-2006-2641
AIAA-2006-2642
A Hybrid RANS/LES Approach for Predicting Jet NoiseM.Goldstein 2967
An Assessment of Filtering Techniques for High-OrderAeroacoustics SimulationsI.AI-Qadi 2980
Large Eddy Simulations of Low-Mach Number Aeroacousticsfor Complex Wall-Bounded Turbulent Flows via aMultiblock/Characteristic Interface ApproachJ. Suh and S. Frankel 2986
An Optimized Large-Stencil Approach for Capturing Near-PIFrequenciesA. Ghasemi 3010
A Computational Method of Evaluating Non-Compact SoundBased on the Vortex Sound TheoryT. Takaishi, M. Miyazawa, and C. Kato 3023
An Investigation of Spectral Collocation Boundary ElementMethod for the Computation of Exact Green's Function inAcoustic AnalogyA. Jones and F. Hu 3037
Development of an Experimental Rig for Investigation of HigherOrder Modes in DuctsC. Gerhold, R. Cabell, and M. Brown 3054
Optimization of Sensor Arrays for Radial Mode Analysis in FlowDuctsU. Tapken and L Enghardt 3073
Validation of an Inverse Analytical Technique to Educe LinerImpedance with Grazing FlowT. Elnady, H. Boden, M. Musharraf, and B. Elhadidi 3093
Development and Qualification of an In-Situ Grazing FlowImpedance Measurement TechniqueJ. Simonich, S. Narayanan, B. Morin, and W. Patrick 3108
Turbofan Duct-Mode Identification Using Farfield NoiseMeasurements and Numerical PredictionsD. Venditti, A. AN, O. Mehdizadeh, and N. Joshi 3119
Fan Inlet Mode Detection from Measurements of the RadiatedSound FieldF. Castres and P. Joseph 3131
AIAA-2006-2643
AIAA-2006-2644
AIAA-2006-2645
AIAA-2006-2646
AIAA-2006-2647
AIAA-2006-2648
AIAA-2006-2649
AIAA-2006-2650
AIAA-2006-2651
AIAA-2006-2652
AIAA-2006-2653
AIAA-2006-2654
AIAA-2006-2656
Comparison of a Convected Helmholtz and Euler Model forImpedance Eduction in FlowW. Watson and M. Jones 3145
Localization of Multiple Types of Jet Noise SourcesD. Papamoschou and A. Dadvar 3168
Acoustic Efficiency of Azimuthal Modes in Jet Noise UsingChevron NozzlesC. Brown and J. Bridges 3185
Coherent Noise Radiation from a Jet Investigated with a Beam-Forming TechniqueT.Suzuki 3199
Phased-Array Study of Dual-Flow Jet Noise: Effect of Nozzlesand MixersS. Lee and J. Bridges 3213
Dynamics of Free Jets Modulated by Plane Acoustic Waves :Part 1. ExperimentsA. Birbaud, D. Durox, S. Ducruix, and S. Candel 3248
Experimental Study of the Properties of Near-Field and Far-FieldJet NoiseS. Barre, V. Fleury, C. Bogey, C. Bailly, and D. Juve 3264
Noise Sources in Controlled High Reynolds Number and HighSpeed JetsJ. Kastner, J. Kim, and M. Samimy 3278
Design and Implementation of a Phased Microphone Array in aClosed-Section Wind TunnelH. Shin, W. Graham, P. Sijtsma, C. Andreou, and A. Faszer 3291
A Large Polar Array for Full-Scale Aero-Engine Noise SourceLocation and BreakdownJ. Battaner-Moro 3303
Phased-Array Measurement of Modern Regional AircraftTurbofan Engine NoiseS. Lee 3315
Extension of DAMAS Phased Array Processing for SpatialCoherence Determination (DAMAS-C)T. Brooks and W. Humphreys 3337
Combined PSP and Microphone Array Measurements forAnalysis of Unsteady FlowsD. Long 3355
AIAA-2006-2657
AIAA-2006-2658
AIAA-2006-2659
AIAA-2006-2661
AIAA-2006-2662
AIAA-2006-2663
AIAA-2006-2664
AIAA-2006-2665
AIAA-2006-2666
AIAA-2006-2667
AIAA-2006-2668
AIAA-2006-2670
Analysis and Test of Spacecraft Structural Response UnderLaunch Acoustic EnvironmentM. Cheng, R. Shyu, D. Cheng, and C. Hsiao 3365
The Computational Investigation of Low-FrequencyVibroisolation Mounting Dynamic ModelV. Baklanov, S. Postnov, and A. Zayakin 3373
Probabilistic Finite Elements for Vibroacoustic ApplicationsT. Polito and F. Marulo 3378
Nonlinear Vibration of Clamped 2024-T3 Aluminum PanelsSubject to High Intensity NoiseB. Burgess and K. Frendi 3388
Smart Tuneable Dynamic Vibration AbsorbersB. Tiseo, A. Concilio, G. Koopmann, and A. Gianvito 3396
Numerical Simulation of the System "Engine-Mounting-Airframe" According to Experimental Data ResultsV. Baklanov and S. Denisov 3405
Effects of Geometric Details on Slat Noise Generation andPropagationM. Khorrami and D. Lockard 3413
Effect of Slat Settings (Gap and Overlap) on Slat Noise Basedon a Test Vortex Injected Upstream of the SLAT-HookR. Emundsand M. Fischer 3439
Attenuation of Slat Trailing Edge Noise Using Slat Gap AcousticLinersM. Smith, L. Chow, and N. Molin 3454
Slat Noise Trend Predictions Using CAA with Stochastic SoundSources from a Random Particle Mesh Method (RPM)R. Ewert 3465
3D Unsteady Flow Computations in a Slat Cove Using LargeEddy SimulationT. Imamura, S. Enomoto, and K. Yamamoto 3498
Dynamics of Free Jets Modulated by Plane Acoustic Waves :Part 2. Numerical SimulationsA. Birbaud, S. Ducruix, D. Durox, andS. Candel 3513
AIAA-2006-2672
AIAA-2006-2673
AIAA-2006-2674
AIAA-2006-2675
AIAA-2006-2676
AIAA-2006-2677
AIAA-2006-2678
AIAA-2006-2681
AIAA-2006-2683
AIAA-2006-2684
AIAA-2006-2685
AIAA-2006-2686
AIAA-2006-2687
Contrasting Code Performances for ComputationalAeroacoustics of JetsP. Tucker, J. Coupland, S. Eastwood, Y. Liu, R. Jefferson-Loveday,andO. Hassan 3530
Adjoint Linearised Euler Solver in the Frequency Domain for JetNoise ModellingS. Karabasov and T. Hynes 3550
A Nonlinear Shock-Refracted Acoustic Wave Model for thePrediction of Screech Amplitude in Underexpanded SupersonicJetsM. Kandula 3564
A Numerical Study of Nozzle Boundary Layer Thickness onAxisymmetric Supersonic Jet Screech TonesJ. Gao and X. Li 3580
Determination of Combustor Noise from a Modern RegionalAircraft Turbofan EngineM.Martinez 3592
Narrowband Model for Gas Turbine Engine Combustion NoisePredictionB. Schuster and L. Lieber 3611
Source Term Evaluation of the APE-RF SystemP. Bui, M. Meinke, and W. Schroder 3624
Folding Cavity Acoustic Liner For Combustion Noise ReductionJ. Yu and E. Chien 3635
The Effect of Blade Loading on Sound Sources in a DuctedRotorD. Stephens and S. Morris 3645
Fan Broadband Noise SimulationB. Tester, P. Sijtsma, P. Joseph, and C. Lowis 3657
Time-Domain Impedance Formulation Based on RecursiveConvolutionY. Reymen, M. Baelmans, and W. Desmet 3674
Impedance Models in Time Domain, Including the ExtendedHelmholtz Resonator ModelS. Rienstra 3688
Aero-Acoustics of Flow Duct Singularities at Low MachNumbersM. Abom, S. Allam, and S. Boij 3708
AIAA-2006-2688
AIAA-2006-2689
AIAA-2006-2690
AIAA-2006-2691
AIAA-2006-2692
AIAA-2006-2694
AIAA-2006-2695
AIAA-2006-2696
AIAA-2006-2699
AIAA-2006-2700
AIAA-2006-2701
AIAA-2006-2702
Surface-Waves, Stability, and Scattering for a Lined Duct withFlowE. Brambleyand N. Peake 3718
Time-Domain Characterization of Acoustic Liner in a DuctK. Fung and X. Yang 3746
Sound Propagation in Ducts Lined with Porous Materials byMultimode Propagation MethodW. Bi and D. Lafarge 3769
On the Propagation of Plane Acoustic Waves in a Duct withFlexible and Impedance WallsK. Frendi and B. Vu 3778
Validation of a CAA Formulation Based on Lighthill's AnalogyUsing AcuSolve and Actran/LA on an Idealized AutomotiveHVAC Blower and on an Axial FanS. Caro, R. Sandboge, F. Shakib, R. Ambs, B. Schillemeit,and K. Washburn 3795
Adaptive Mesh Refinement Computation of Acoustic Radiationfrom an Engine IntakeX. Huang and X. Zhang 3813
Comparison of the Two Microphone Method and the ModalDecomposition Method for Acoustic Impedance TestingT. Schultz, L Cattafesta, and M. Sheplak 3826
Experimental Training and Validation of a System for AircraftAcoustic Signature IdentificationV. Quaranta and I. Dimino 3839
Sound Generation by Flow Around Simple Geometries:Simulation and ExperimentS. Becker, M. Kaltenbacher, I. Ali, M. Escubar, and C. Hahn 3849
Aeroacoustic Noise Source Mechanisms in Simple ExpansionChambersG. Rubio, W. De Roeck, M. Baelmans, P. Sas, and W. Desmet 3864
Numerical Analysis of a Blast Wave Using CFD-CAA HybridMethodI. Lee, D. Lee, S. Ko, D. Lee, and G. Kang 3873
Extent of Nonlinear Aeroacoustic Propagation from SingleFrequency-Domain Noise MeasurementsW. Lundberg 3882
AIAA-2006-2703
AIAA-2006-2704
AIAA-2006-2705
AIAA-2006-2706
AIAA-2006-2707
AIAA-2006-2709
AIAA-2006-2710
AIAA-2006-2711
AIAA-2006-2713
AIAA-2006-2714
AIAA-2006-2715
AIAA-2006-2717
AIAA-2006-2718
Toward Noise Mitigation in High Speed and High ReynoldsNumber Jets Using Plasma ActuatorsM. Samimy, J. Kim, I. Adamovich, Y. Utkin, and J. Kastner 3885
Experiments on High-Speed Jets from Thrust VectoringRectangular NozzlesJ. Lee, A. Goss, and D. McLaughlin 3902
Effect of microjets on a high-subsonic jet. Parametric study offar-field noise reduction.T. Castelain, M. Sunyach, and J. Bera 3917
Aeroacoustic Improvements to Fluidic Chevron NozzlesB. Henderson, K. Kinzie, J. Whitmire, and A. Abeysinghe 3928
Effect of Nozzle Geometry on Jet Noise Reduction Using FanFlow DeflectorsD. Papamoschou and R. Shupe 3937
Modeling of Piezoelectric Actuators for Active Control of JetNoiseG.Butler 3957
A Focused Beamformer Technique for Separating Rotor andStator-Based Broadband SourcesC. Lowis and P. Joseph 3973
A Comparison of Iterative Deconvolution Algorithms for theMapping of Acoustic SourcesK. Ehrenfried and L. Koop 3987
Noise Source Localization and Optimization of Phased ArrayResultsP. Ravetta, R. Burdisso, and W. Ng 4006
Acoustic Source Localization in Aircraft Interiors UsingMicrophone Array TechnologiesB. Sklanka, J. Tuss, R. Buehrle, J. Klos, E. Williams, and N. Valdivia4029
Acoustic Imaging of Aircraft Noise Sources Using LargeAperture Phased ArraysL. Brusniak, J. Underbrink, and R. Stoker 4036
New Noise Source Mechanism of Flow/Surface Interaction asApplied to Airframe Noise ReductionV. Kopiev, M. Zaitsev, and N. Ostrikov 4056
Sound Radiation from an Annular Duct with Jet Flow and aLined CenterbodyA. Demirand S. Rienstra 4075
AIAA-2006-2719 Far-Field Evaluation of the Noise Radiated by a Side MirrorUsing LES and Acoustic AnalogyH. Posson and F. Perot 4076
AIAA-2006-2720 The Quiet Technology Demonstrator Program: Flight Validationof Airplane Noise-Reduction ConceptsW. Herkes, R. Olsen, and S. Uellenberg 4079