#
Aeroacoustics
Resource Information
The concept ** Aeroacoustics** represents the subject, aboutness, idea or notion of resources found in **Houston Public Library**.

The Resource
Aeroacoustics
Resource Information

The concept

**Aeroacoustics**represents the subject, aboutness, idea or notion of resources found in**Houston Public Library**.- Label
- Aeroacoustics

- Source
- nasat

## Context

Context of Aeroacoustics#### Subject of

- A First look at the DGEN380 engine acoustic data from a core-noise perspective
- A mode propagation database suitable for code validation utilizing the NASA Glenn advanced noise control fan and artificial sources
- A numerical simulator for three-dimensional flows through vibrating blade rows
- A numerical study of fundamental shock noise mechanisms
- A parallel compact multi-dimensional numerical algorithm with aeroacoustics applications
- A study of shape memory polymer based slat-cove filler
- A zonal approach for prediction of jet noise
- AST critical propulsion and noise reduction technologies for future commercial subsonic engines : separate-flow exhaust system noise reduction concept evaluation
- Accurate finite difference algorithms
- Accurate finite difference algorithms
- Acoustic and aerodynamic study of a pusher-propeller aircraft model
- Acoustic and aerothermal performance test of the axisymmetric coannular ejector nozzle
- Acoustic database for turbofan engine core-noise sources, volume I, final report
- Acoustic investigation of jet mixing noise in dual stream nozzles
- Acoustic performance of an advanced model turbofan in three aeroacoustic test facilities
- Acoustic receptivity of compressible boundary layers : receptivity via surface-temperature variations
- Acoustic reflection and transmission of 2-dimensional rotors and stators, including mode and frequency scattering effects
- Acoustic treatment design scaling methods
- Active control of fan noise-feasibility study : flyover system noise studies
- Active control of liner impedance by varying perforate orifice geometry
- Advances in numerical boundary conditions for computational aeroacoustics
- Aeroacoustic codes for rotor harmonic and BVI noise - CAMRAD.Mod1/HIRES : methodology and users' manual
- Aeroacoustic codes for rotor harmonic and BVI noise - CAMRAD.Modl/HIRES : methodology and users' manual
- Aeroacoustic data for a high Reynolds number axisymmetric subsonic jet
- Aeroacoustic data for a high Reynolds number axisymmetric subsonic jet
- Aeroacoustic data for high Reynolds number supersonic axisymmetric jets
- Aeroacoustic diffraction and dissipation by a short propeller cowl in subsonic flight
- Aeroacoustic experiments with twin jets
- Aeroacoustics of advanced propellers
- Aeroacoustics of flight vehicles : theory and practice
- Aircraft noise prediction program theoretical manual : rotorcraft system noise prediction system (ROTONET)
- An analysis of blade vortex interaction aerodynamics and acoustics
- An analytical assessment of NASA's N+1 Subsonic Fixed Wing Project noise goal
- An assessment of 3-C PIV analysis methodology for HART II measured data
- An automated code generator for three-dimensional acoustic wave propagation with geometrically complex solid wall boundaries
- An experimental study of fan inflow distortion tone noise
- An extension of the Lighthill theory of jet noise to encompass refraction and shielding
- An outflow boundary condition for aeroacoustic computations
- Application of an aligned and unaligned signal processing technique to investigate tones and broadband noise in fan and contra-rotating open rotor acoustic spectra
- Assessment of NASA's aircraft noise prediction capability
- Blade-mounted flap control for BVI noise reduction proof-of-concept test
- Blended wing body concept development with open rotor engine integration
- Boeing 18-inch fan rig broadband noise test
- Boundary conditions for jet flow computations
- Characteristics of residual mixing noise from internal fan/core mixers
- Characteristics of residual mixing noise from internal fan/core mixers
- Characterization of three-stream jet flow fields
- Combustion-acoustic stability analysis for premixed gas turbine combustors
- Comparison of predicted low speed fan rotor/stator interaction modes to measured
- Comparison of predicted low speed fan rotor/stator interaction modes to measured
- Comparison of the aeroacoustics of two small-scale supersonic inlets : final technical report, NASA contract #--NAG 3-1539
- Computation of helicopter rotor acoustics in forward flight
- Computation of noise radiation from turbofans : a parametric study
- Computation of sound generated by viscous flow over a circular cylinder
- Computation of sound generated by viscous flow over a circular cylinder
- Computational aeroacoustics and numerical simulation of supersonic jets : final report on NASA grant NAG 1-1479
- Computational aeroacoustics by the space-time CE/SE method
- Computational analyses of propulsion aeroacoustics for mixed flow nozzle pylon installation at takeoff
- Computational noise study of a supersonic short conical plug-nozzle jet
- Computing axisymmetric jet screech tones using unstructured grids
- Computing jet screech : a complex aeroacoustic feedback system
- Computing jet screech--a complex aeroacoustic feedback system
- Continued development of the discontinuous Galerkin method for computational aeroacoustic applications
- Coupled 2-dimensional cascade theory for noise and unsteady aerodynamics of blade row interaction in turbofans, Volume 1, Theory development and parametric studies
- Coupling of low speed fan stator vane unsteady pressures to duct modes : measured versus predicted
- Data quality assurance for supersonic jet noise measurements
- Determination of HART I blade structural properties by laboratory testing
- Development of an empirical method for predicting jet mixing noise of cold flow rectangular jets
- Development of baseline random vibration environment criteria for shuttle pallet payload subsystems
- Development of improved surface integral methods for jet aeroacoustic predictions : final report, NASA-Langley grant no. NAG-1660
- Direct numerical simulation of acoustic waves interacting with a shock wave in a quasi-1D convergent-divergent nozzle using an unstructured finite volume algorithm
- Domain decomposition for aerodynamic and aeroacoustic analyses, and optimization : final report for the period ended September 30, 1995
- Effect of coannular flow on linearized Euler equation predictions of jet noise
- Effect of nonzero surface admittance on receptivity and stability of compressible boundary layer
- Effects of cavity dimensions, boundary layer, and temperature on cavity noise with emphasis on benchmark data to validate computational aerocoustic codes
- Empirical models for the shielding and reflection of jet mixing noise by a surface
- En route noise levels from propfan test assessment airplane
- Enhanced core noise modeling for turbofan engines
- Enhanced fan noise modeling for turbofan engines
- Essentially non-oscillatory and weighted essentially non-oscillatory schemes for hyperbolic conservation laws
- Evaluation of a doubly-swept blade tip for rotorcraft noise reduction
- Evaluation of a high-accuracy MacCormack type scheme using benchmark problems
- Evaluation of boundary conditions for computational aeroacoustics
- Fan noise control using Herschel-Quincke resonators
- Fan noise prediction : status and needs
- Fan noise prediction assessment
- Fiber optic interferometric sensors for aeroacoustic measurements : anechoic chamber tests
- Flow and noise control in high speed and high Reynolds number jets using plasma actuators
- Flow structure generated by perpendicular blade vortex interaction and implications for helicopter noise predictions
- Fluctuating pressure loads under high speed boundary layers
- Fourth Aircraft Interior Noise Workshop : compilation of material presented at a workshop ... held in Friedrichshafen, Germany, May 19-20, 1992
- Further development of rotating rake mode measurement data analysis
- Gap noise computation by the CE/SE method
- Gap noise computation by the CE/SE method
- Generalized advanced propeller analysis system (GAPAS), Volume II, Computer program user manual
- Genetic algorithms in conceptual design of a light-weight, low-noise, tilt-rotor aircraft : final report, NASA grant NAG 2-882
- Helicopter impulsive noise : theoretical and experimental status
- High-accuracy compact MacCormack-type schemes for computational aeroacoustics
- Highlights of aeroacoustics research in the U.S.-1998
- ICASE/LaRC Workshop on Benchmark Problems in Computational Aeroacoustics (CAA) : proceedings of a workshop sponsored by the National Aeronautics and Space Administration, Washington, D.C., and the Institute for Computer Applications in Science and Engineering (ICASE), Hampton, Virginia and held in Hampton, Virginia, October 24-26, 1994
- Identification of noise sources during rocket engine test firings and a rocket launch using a microphone phased-array
- In-flight acoustic testing techniques using the YO-3A Acoustic Research Aircraft
- Inhomogeneous radiation boundary conditions simulating incoming acoustic waves for computational aeroacoustics
- Interaction of sound from supersonic jets with nearby structures
- Introductions to generalized functions with applications in aerodynamics and aeroacoustics
- Investigation of computational and spectral analysis methods for aeroacoustic wave propagation : abstract
- Investigation of dispersion-relation-preserving scheme and spectral analysis methods for acoustic waves
- Jet aeroacoustics : noise generation mechanism and prediction : progress report on NASA grant NAG1-1776, period covered by this report January 1, 1996 to December 31, 1996
- Jet noise reduction potential from emerging variable cycle technologies
- Jet surface interaction noise in a high aspect ratio rectangular exhaust
- Kinematics, influence functions and field quantities for disturbance propagation from moving disturbance sources
- Laboratory experiments on active suppression of advanced tuboprop noise
- Large Engine Technology (LET) task XXXVII low-bypass ratio mixed turbofan engine subsonic jet noise reduction program test report
- Lightweight ceramics for aeroacoustic applications : contract NAS1-20102
- Locating and quantifying broadband fan sources using in-duct microphones
- Low-speed performance of an axisymmetric, mixed-compression, supersonic inlet with auxiliary inlets
- Measurement resolution of noise directivity patterns from acoustic flight tests
- Measurements of turbulent flow field in separate flow nozzles with enhanced mixing devices, test report
- Method for extracting forward acoustic wave components from rotating microphone measurements in the inlets of turbofan engines
- Modifications to the 4 x 7 meter tunnel for acoustic research : engineering feasibility study
- N+3 advanced concept studies for supersonic commercial transport aircraft entering service in the 2030-2035 period
- NASA Glenn's contributions to aircraft engine noise research
- NASA LeRC's acoustic fill effect test program and results : William O. Hughes ... [and others] ; prepared for the 65th Shock and Vibration Symposium ; sponsored by SAVIAC, San Digeo, California, October 31-November 1994
- NASA-Army rotorcraft technology : proceedings of a conference ... held at Ames Research Center, Moffett Field, California, March 17-19, 1987
- Near field trailing edge tone noise computation
- Noise computation of a shock-containing supersonic axisymmetric jet by the CE/SE method
- Noise computation of a shock-containing supersonic axisymmetric jet by the CE/SE method
- Noise exposure reduction of advanced high-lift systems
- Noise from aft deck exhaust nozzles : differences in experimental embodiments
- Noise impact of advanced high lift systems : contract NAS1-20103
- Noise of a model high speed counterrotation propeller at simulated takeoff/approach conditions (F7/A7)
- Noise radiation by instability waves in coaxial jets
- Nozzle thrust optimization while reducing jet noise
- Numerical simulation of the edge tone phenomenon
- Numerical simulation of the effect of heating on supersonic jet noise
- Numerical simulation of the generation of axisymmetric mode jet screech tones
- Numerical study of wave propagation in a non-uniform flow
- On aeroacoustics of a stagnation flow near a rigid wall
- On the Lighthill relationship and sound generation from isotropic turbulence
- On the correlation of plume centerline velocity decay of turbulent acoustically excited jets : prepared for the 11th Aeroacoustics Conference sponsored by the American Institute of Aeronautics and Astronautics, Sunnyvale, California, October 19-21, 1987
- On the interaction of jet noise with a nearby flexible structure
- Open rotor noise prediction at NASA Langley : capabilities, research and development
- PIV measurements of supersonic internally-mixed dual-stream jets
- Parallelization of an object-oriented unstructured aeroacoustics solver
- Potential theoretic methods for far field sound radiation calculations
- Progressive wave expansions and open boundary problems
- Quadrature-free implementation of discontinuous Galerkin method for hyperbolic equations
- Quelling cabin noise in turboprop aircraft via active control
- Quiet High Speed Fan II (QHSF II) : final report
- Quiet, efficient fans for spaceflight : an overview of NASA's technology development plan
- Reduction of Blade-Vortex Interaction (BVI) noise through X-force control
- Refined exploration of turbofan design options for an advanced single-aisle transport
- Response of multi-panel assembly to noise from a jet in forward motion
- Review and analysis of the DNW/model 360 rotor acoustic data base
- Review of combustion-acoustic instabilities
- Reynolds-averaged Navier-Stokes simulations of two partial-span flap wing experiments
- Rotating rake turbofan duct mode measurement system
- Second Computational Aeroacoustics (CAA) Workshop on Benchmark Problems : proceedings of a workshop ... held in Tallahassee, Florida, November 4-5, 1996
- Sensitivity analysis for aeroacoustic and aeroelastic design of turbomachinery blades : final technical report
- Separate flow nozzle test status meeting : proceedings of a conference held at and sponsored by NASA Glenn Research Center, Cleveland, Ohio, September 9-10, 1997
- Space station interior noise analysis program
- Supersonic coaxial jet noise predictions
- Supersonic jet noise reductions predicted with increased jet spreading rate
- Takeoff/approach noise for a model counterrotation propeller with a forward-swept upstream rotor
- Task 2 : flow solution for advanced separate flow nozzles response A : structured grid Navier-Stokes approach
- Technique for a very high order nonlinear simulation and validation
- The Kirchhoff formulas for moving surfaces in aeroacoustics : the subsonic and supersonic cases
- The aeroacoustics of supersonic coaxial jets
- The effect of bypass nozzle exit area on fan aerodynamic performance and noise in a model turbofan simulator
- The flight track noise impact model
- The method of space-time conservation element and solution element-applications to one-dimensional and two-dimensional time-marching flow problems
- The prediction and analysis of jet flows and scattered turbulent mixing noise about flight vehicle airframes
- The research and training activities for the Joint Institute for Aeronautics and Acoustics : proposal submitted to the NASA Ames Research Center for a period of one year, October 1, 1996 to September 30, 1997
- The spectral and statistical properties of turbulence generated by a vortex/blade-tip interaction : final technical report ...
- The use of Kirchhoff's method in jet aeroacoustics : final report, NASA/NAG 1-1605 (3/1/94-9/15/94)
- Theoretical aeroacoustics : compiled mathematical derivations of Fereidoun 'Feri' Farassat
- Tilt rotor aircraft aeroacoustics : final report, grant number NAG-2-554, period covered: 1 January 1989 to December 31, 1996
- Time correlations and the frequency spectrum of sound radiated by turbulent flows
- Time-dependent parabolic finite difference formulation for harmonic sound propagation in a two-dimensional duct with flow
- Time-dependent parabolic finite difference formulation for harmonic sound propagation in a two-dimensional duct with flow
- Time-domain impedance boundary conditions for computational aeroacoustics
- Toward a nonlinear acoustic analogy : turbulence as a source of sound and nonlinear propagation
- Turbofan noise propagation and radiation at high frequencies
- Turbomachinery design and tonal acoustics computations
- Two-dimensional fourier transform applied to helicopter flyover noise
- Ultra-high bypass ratio jet noise
- Validation of aircraft noise models at lower levels of exposure

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