All Stories

  1. Multipaths in acoustic tomography of aero-propulsion flows
  2. Measurements and model comparison of sub-convective pressure fluctuations in rough-wall turbulent boundary layers
  3. Physics-informed filtered Rayleigh scattering applied to compressible jets
  4. Wavenumber-frequency cross-spectra of correlated wall pressure and velocity components in varying external pressure gradients
  5. Empirically mapping the sensitivity of filtered Rayleigh scattering for multi-parameter measurements in high temperature flows
  6. Filtered Rayleigh Scattering With Polarization Separation for Fuel/Air Mixing in a Lean Premixed Prevaporized Combustor
  7. Boundary Layer Turbulence and Wall Pressure Fluctuations in the Wake of a Wall-Mounted Fence
  8. Three-Dimensional Effects of the Flow Over the BeVERLI Hill
  9. Numerical Investigation of Particle-Laden Flow Sampling Bias Around an Engine Probe
  10. An Image Processing Technique for Erosion Analysis on Compressor Blade Geometry
  11. Field-Relevant High Stokes Number Study of Particle Impacts in High-Speed Compressor via Engine Test
  12. Assessing the Education to Engineering Sustainable Propulsion Undergraduate Education and Research Program
  13. Characterizing Superstructures in Rough-Wall Turbulence
  14. Particle Separation Efficiency Experiments in Single and Arrayed Vortex Tube Separator (VTS) Configurations
  15. Measurement and analysis of sub-convective wall pressure fluctuations in turbulent boundary layer flows
  16. Filtered Rayleigh scattering for multi-property aerodynamic measurements in confined flows
  17. Importance of depolarized scattering contributions in filtered Rayleigh scattering measurement models
  18. On the development of computation-enabled reduced-order models for the rebound of irregular particles
  19. Near-wall flow measurements using frequency-modulating filtered Rayleigh scattering (FM-FRS)
  20. Frequency-Scanning Filtered Rayleigh Scattering Measurements for the Mixtures of C3 and n-C4 Hydrocarbon Fuels with Nitrogen at Elevated Pressures
  21. On the Use of Filtered Rayleigh Scattering in High Temperature Engine Exhaust Conditions
  22. Non-equilibrium turbulent boundary layers in high reynolds number flow at incompressible conditions: effects of streamline curvature and three dimensionality
  23. Computations for a Subsonic Wind Tunnel and Discrepancies In As-Built vs. As-Designed CFD Simulations
  24. Summary of Data from the VT-NASA Blind Validation CFD Challenge Case
  25. Experimental Results for the VT-NASA CFD Turbulence Model Blind Validation Challenge
  26. Evaluating Models for Sub-Convective Pressure Fluctuations in Turbulent Boundary Layers
  27. Identification of Sources of Sub-Convective Wall Pressure Fluctuations Using Space-Time Pressure-Velocity Correlations
  28. Characterization of the Far-Wake of a Wall-Mounted Obstacle Embedded in a Turbulent Boundary Layer
  29. The Characteristics of Sub-Convective Wall Pressure Fluctuations in a Turbulent Boundary Layer
  30. Boundary layer flow over a bump and the three-dimensional law of the wall
  31. Particle characterization using optical measurements and neural networks
  32. Experimental Measurements on a Vortex Tube Separator Array
  33. Modeling the Surface Pressure Spectrum Beneath Turbulent Boundary Layers in Pressure Gradients
  34. Understanding the pressure fluctuations that arise within smooth surfaces subject to turbulent flows
  35. Equilibrium and non-equilibrium turbulent boundary layers
  36. Fluorescent particle image velocimetry using atomized liquid particles
  37. Finite control volume and scalability effects in velocimetry for application to aeroacoustics
  38. The Space-Time Correlation of Pressure Under High Reynolds Number Smooth Wall Turbulent Boundary Layers in Pressure Gradient Family
  39. Flow Field Features of the BEVERLI Hill Model
  40. The Effect of Grazing Flow on Pinhole Condenser Microphones
  41. Non-intrusive optical measurements of gas turbine engine inlet condensation using machine learning
  42. RANS Simulations of Thermally Non-Uniform Supersonic Jets
  43. The Pressure Signature of High Reynolds Number Smooth Wall Turbulent Boundary Layers in Pressure Gradient Family
  44. Computational Fluid Dynamic Analysis for the Assessment of Experimental Design Risks and Flow Sensitivities for a Three-Dimensional Bump Flow
  45. Analysis of Stresses in Metal Sheathed Thermocouples in High-Temperature, Hypersonic Flows
  46. 250 kHz three-component Doppler velocimetry at 32 simultaneous points: a new capability for high speed flows
  47. Non-spherical particle size estimation using supervised machine learning
  48. Geometric scattering removal in cross-correlation Doppler global velocimetry by structured illumination
  49. In-flight thrust monitoring: an acoustics-based approach
  50. Use of Thermal Nonuniformity to Reduce Supersonic Jet Noise
  51. Turbine Engine Ingested Particle Monitoring: A Novel Application of Quantum Cascade IR Laser Extinction
  52. Mean Flow and Turbulence of a Heated Supersonic Jet with Temperature Nonuniformity
  53. Hybrid RANS/LES Turbulence Model Applied to a Transitional Unsteady Boundary Layer on Wind Turbine Airfoil
  54. Aerodynamic Analysis of Total Temperature Probe Thermal Performance Using Conjugate Heat Transfer
  55. Measurement Drift in 3-Hole Yaw Pressure Probes From 5 Micron Sand Fouling at 1050° C
  56. On the Application of Particle Image Velocimetry for Turbofan Engine Flow Quantification
  57. Laser Light Sheet Flow Visualization of the Space Launch System Booster Separation Test
  58. Three-Velocity-Component Cross-Correlation Doppler Global Velocimetry for the Space Launch System Booster Separation Test in the NASA Langley Unitary Plan Wind Tunnel
  59. Space Launch System Booster Separation Supersonic Powered Testing with Surface and Off-body Measurements
  60. Laser velocimetry for turbofan inlet distortion applications
  61. Coupled velocity and temperature acoustic tomography in heated high subsonic mach number flows
  62. Filtered Rayleigh Scattering for Velocity and Temperature Measurements of a Heated Supersonic Jet with Thermal Non-Uniformity
  63. Space-time Description of the Density Near-field in a Non-uniformly Heated Jet.
  64. Statistical Flow Structures in Heated Supersonic Jets with Offset Temperature Non-Uniformities
  65. Synthesis of convection velocity and turbulence measurements in three-stream jets
  66. Investigation of velocity and temperature measurement sensitivities in cross-correlation filtered Rayleigh scattering (CCFRS)
  67. An experimental study on the coupling between adjacent Hartmann whistles
  68. Vortical flow development in round ducts across scales for engine inlet applications
  69. Laser Light Sheet Flow Visualization of the Space Launch System Booster Separation Test
  70. Three-Velocity-Component Cross-Correlation Doppler Global Velocimetry for the Space Launch System Booster Separation Test in the NASA Langley Unitary Plan Wind Tunnel
  71. Space Launch System Booster Separation Supersonic Powered Testing with Surface and Off-body Measurements
  72. Distributed Anemometry via High-Definition Fiber Optic Sensing
  73. Demonstration of 250 kHz Three-Component Velocity Measurements using TRDGV at 32 Simultaneous Points
  74. Outdoor Acoustic Measurements of the Virginia Tech Heated Supersonic Jet Rig Using Ground Microphones
  75. Definition of Arbitrary Swirl Distortions by Solutions to the Helmholtz Equation
  76. Experimental Investigation on the Acoustic Field and Convection Velocity of Structures in a Heated Jet With Centered Thermal Non-Uniformity
  77. MOUNT INTERFERENCE EFFECTS ON TOTAL TEMPERATURE PROBES
  78. Experimental Investigation of the Very Near Pressure Field of a Heated Supersonic Jet with a Total Temperature Non-Uniformity
  79. The Flow and Turbulence Characteristics of a Heated Supersonic Jet with an Offset Total Temperature Non-Uniformity
  80. Turbofan Nose Cone Interactions With Inlet Swirl
  81. Enhanced Low-Order Model with Radiation for Total Temperature Probe Analysis and Design
  82. Complex Flow Generation and Development in a Full-Scale Turbofan Inlet
  83. Experimental Quantification of Fan Rotor Effects on Inlet Swirl Using Swirl Distortion Descriptors
  84. Nonintrusive Gas-Turbine Engine-Exhaust Characterization Using Acoustic Measurements
  85. Unsteady boundary layer development on a wind turbine blade: an experimental study of a surrogate problem
  86. StreamVane Turbofan Inlet Swirl Distortion Generator: Mean Flow and Turbulence Structure
  87. Cross-Correlation Doppler Global Velocimetry using Rayleigh and Mie Scattering
  88. Decomposition of Periodic Eddies with Varying Energy in a Turbulent Flow Using a Directional Averaging Technique
  89. Large-Eddy Simulations of Flow Control Effects of a DBD Plasma Actuator at Various Burst Frequencies on a Dynamic Flowfield around a Pitching NACA0012 Airfoil at Reynolds Number of 256,000
  90. Numerical Study of Transitional Unsteady Boundary Layer on Wind Turbine Airfoil Using Hybrid RANS/LES Turbulence Model
  91. Non-intrusive acoustic measurement of flow velocity and temperature in a high subsonic Mach number jet
  92. Enhanced Low-Order Model with Radiation for Total Temperature Probe Analysis and Design
  93. Computational Modeling of Total-Temperature Probes
  94. Experimental Quantification of Fan Rotor Effects on Inlet Swirl Using Swirl Distortion Descriptors
  95. Application of Proper Orthogonal Decomposition to High Speed Imaging for the Study of Combustion Oscillations
  96. Complex Flow Generation and Development in a Full-Scale Turbofan Inlet
  97. Synthesis of Convection Velocity and Turbulence Measurements in Three-Stream Jets for Investigation of Noise Sources
  98. Eddy Convection in Cold and Heated Supersonic Jets
  99. Experimental Investigation of a Heated Supersonic Jet with Total Temperature Non-Uniformity
  100. Extension of sonic anemometry to high subsonic Mach number flows
  101. Fan Rotor Flow Measurements in a Turbofan Engine Operating with Inlet Swirl Distortion
  102. Swirling Flow Evolution Part 2: StreamFlow 2D+t Model Validated with Stereo PIV Measurements
  103. Swirling Flow Evolution Part 1: Design and Stereo PIV Measurements at Select Planes
  104. Numerical and experimental study of the unsteady transitional boundary layer on a wind turbine airfoil
  105. Non-Intrusive Measurement of Gas Turbine Engine Exhaust Characteristics using Acoustic Measurements
  106. Fluctuating Pressure Gradients in Heated Supersonic Jets
  107. Scale-up of the Time-Resolved Doppler Global Velocimetry Technique
  108. Measurements of Fan Response to Inlet Total Pressure and Swirl Distortions Produced by Boundary Layer Ingesting Aircraft Configurations
  109. An overview of recent results using the StreamVane method for generating tailored swirl distortion in jet engine research
  110. A Hybrid Technique for Laser Flare Reduction
  111. Velocity Statistics and Spectra in Three-Stream Jets
  112. Eddy Convection in Developing Heated Supersonic Jets
  113. Computational Modeling of Radiation Effects on Total Temperature Probes
  114. Stereoscopic PIV measurements in a turbofan engine inlet with tailored swirl distortion
  115. A Diagnostic Technique for Particle Characterization Using Laser Light Extinction
  116. An Experimental Investigation of the Performance Impact of Swirl on a Turbine Exhaust Diffuser/Collector for a Series of Diffuser Strut Geometries
  117. Particle Image Velocimetry Applications Using Fluorescent Dye-doped Particles
  118. Fourth-order Spectral Statistics in the Developing Shear Layers of Hot Supersonic Jets
  119. The Experimental Studies of Improving the Aerodynamic Performance of a Turbine Exhaust System
  120. The Effect of Particle Lag on Supersonic Turbulent Boundary Layer Statistics
  121. Stereoscopic PIV Measurements of Swirl Distortion on a Full-Scale Turbofan Engine Inlet
  122. Spectral analysis of over-expanded cold jets via 3-component point Doppler velocimetry
  123. Time-Domain Cross-Correlation Scan DGV (CCS-DGV) for Mean-Velocity Boundary Layer Measurements
  124. Experimental Reynolds Stress Spectra in Hot Supersonic Round Jets
  125. Laser velocimetry with fluorescent dye-doped polystyrene microspheres
  126. A laser-Doppler velocimeter system for near-field velocity vector measurements in large facilities
  127. Novel Laser Doppler Acceleration Measurements of Particle Lag Through a Shock Wave
  128. A Laser-Based Optical Approach for Measuring Scour Depth around Hydraulic Structures