All Stories

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