All Stories

  1. Design Optimization for Early Natural Transition Over High-Speed Axisymmetric Configurations

    Article • July 2025, American Institute of Aeronautics and Astronautics (AIAA)

    Pedro Paredes, Dr. Meelan Choudhari, Ethan Vogel

  2. Hypersonic Boundary-Layer Transition Over a Blunt Circular Cone in a Mach 8 Digital Wind Tunnel

    Article • July 2025, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  3. Aerodynamic Design Optimization for Natural Laminar Flow Airfoils

    Article • July 2024, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Pedro Paredes

  4. Computational Study of Noise Characteristics From 30P30N Leading-Edge Slat and Krueger Flap

    Article • May 2024, American Institute of Aeronautics and Astronautics (AIAA)

    Kazuomi Yamamoto, Dr. Meelan Choudhari

  5. Hypersonic Boundary-Layer Transition over a Blunt Circular Cone in a Mach 8 Digital Wind Tunnel

    Article • January 2024, American Institute of Aeronautics and Astronautics (AIAA)

    Pedro Paredes, Dr. Meelan Choudhari

  6. Grid Refinement Techniques for the γ-Reθt Transition Model in FUN3D

    Article • January 2024, American Institute of Aeronautics and Astronautics (AIAA)

    Pedro Paredes, Dr. Meelan Choudhari

  7. Separation and Transition on a Cone-Cylinder-Flare: Experimental Campaigns

    Article • January 2024, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Pedro Paredes, Zachary McDaniel

  8. Ground Tests on the BOLT Geometry at Mach 6 and 7: Cross-Facility Comparison and Stability Analysis

    Article • January 2024, American Institute of Aeronautics and Astronautics (AIAA)

    Pedro Paredes, Dr. Meelan Choudhari

  9. Separation and Transition on a Cone-Cylinder-Flare: Computational Investigations

    Article • January 2024, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Pedro Paredes, Zachary McDaniel

  10. Transition prediction in hypersonic regime on complex geometries with RANS-based models

    Article • January 2024, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Ethan Vogel

  11. Modeling Boundary-Layer Transition in Subsonic Flow over a Swept Wing

    Article • January 2024, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Pedro Paredes

  12. Enhancements to Linear Stability Solver-Based CFD-integrated Transition Prediction for High-Speed Flows

    Article • January 2024, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Ethan Vogel

  13. Transition Analysis for the Pazy Wing

    Article • January 2024, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  14. Nonlinear Evolution of Instabilities in a Laminar Separation Bubble at Hypersonic Mach Number

    Article • June 2022, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Pedro Paredes

  15. Effect of the Reynolds Number on the Freestream Disturbance Environment in a Mach 6 Nozzle

    Article • June 2022, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  16. Boundary-Layer Transition Prediction Through Loose Coupling of OVERFLOW and LASTRAC

    Article • June 2022, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  17. Toward Verification of γ-Reθt Transition Model in OVERFLOW and FUN3D

    Article • June 2022, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  18. Linear Disturbance Amplification Over Blunted Flat Plates in High-Speed Flows

    Article • June 2022, American Institute of Aeronautics and Astronautics (AIAA)

    Hemanth Goparaju, Dr. Meelan Choudhari, Pedro Paredes

  19. Combined Bluntness and Roughness Effects on Cones at Hypersonic Speeds

    Article • June 2022, American Institute of Aeronautics and Astronautics (AIAA)

    Pedro Paredes, Dr. Meelan Choudhari

  20. Interaction of a Tunnel-like Acoustic Disturbance Field with a Blunt Cone Boundary Layer at Mach 8

    Article • June 2022, American Institute of Aeronautics and Astronautics (AIAA)

    Pedro Paredes, Dr. Meelan Choudhari

  21. Stability Analysis of Streaks Induced by Optimized Vortex Generators

    Article • June 2022, American Institute of Aeronautics and Astronautics (AIAA)

    Pedro Paredes, Dr. Meelan Choudhari

  22. Effects of Porous Gap Fillers on Leading-Edge Slat Noise of 30P30N. Part II: PIV Measurements

    Article • June 2022, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, kyle pascioni, Mehdi R. Khorrami, Dr. Travis Turner

  23. Effects of Porous Gap Fillers on 30P30N Leading-Edge Slat Noise. Part I: Surface Pressure and Acoustics

    Article • June 2022, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, kyle pascioni, Mehdi R. Khorrami, Dr. Travis Turner

  24. Simulation and Modeling of Hypersonic Turbulent Boundary Layers Subject to Favorable Pressure Gradients due to Streamline Curvature

    Article • January 2021, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  25. Transition Analysis for the CRM-NLF Wind Tunnel Configuration

    Article • January 2021, American Institute of Aeronautics and Astronautics (AIAA)

    Pedro Paredes, Dr. Meelan Choudhari

  26. Assessment of RANS-based Transition Models based on Experimental Data of the Common Research Model with Natural Laminar Flow

    Article • January 2021, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  27. A Computational Analysis of Boundary Layer Instability over the BOLT Configuration

    Article • January 2021, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  28. Hypersonic Second Mode Instability Response to Shaped Roughness

    Article • January 2021, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  29. Toward a Practical Method for Hypersonic Transition Prediction Based on Stability Correlations

    Article • AIAA Journal, October 2020, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Pedro Paredes, Muhammad Irfan Zafar

  30. Predicting Boundary-Layer Transition over Backward-Facing Steps via Linear Stability Analysis

    Article • AIAA Journal, September 2020, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Pedro Paredes

  31. Streak Instability Analysis on BOLT Configuration

    Article • June 2020, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Pedro Paredes

  32. Slat Noise Control Using a Slat Gap Filler

    Article • June 2020, American Institute of Aeronautics and Astronautics (AIAA)

    kyle pascioni, Mehdi R. Khorrami, Dr. Travis Turner, Dr. Meelan Choudhari

  33. Shape Optimization of Vortex Generators to Control Mack Mode Amplification

    Article • June 2020, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  34. Nonlinear Görtler Vortices and Their Secondary Instability in a Hypersonic Boundary Layer

    Article • June 2019, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Pedro Paredes

  35. Laminar-Turbulent Transition Upstream of the Entropy-Layer Swallowing Location in Hypersonic Boundary Layers

    Article • June 2019, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Pedro Paredes

  36. Characterization of Freestream Disturbances in Conventional Hypersonic Wind Tunnels

    Article • Journal of Spacecraft and Rockets, March 2019, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Lian Duan, Rolf Radespiel

  37. Numerical Investigation of Roughness Effects on Transition on Spherical Capsules

    Article • Journal of Spacecraft and Rockets, March 2019, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Pedro Paredes, Alexander Theiß

  38. Nose-Tip Bluntness Effects on Transition at Hypersonic Speeds

    Article • Journal of Spacecraft and Rockets, March 2019, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Prof. Joseph S Jewell, Pedro Paredes

  39. Effect of 3D Roughness Patch on Instability Amplification in a Supersonic Boundary Layer

    Article • January 2019, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Lian Duan, Pedro Paredes

  40. Nonmodal Growth of Traveling Waves on Blunt Cones at Hypersonic Speeds

    Article • January 2019, American Institute of Aeronautics and Astronautics (AIAA)

    Prof. Joseph S Jewell, Dr. Meelan Choudhari, Pedro Paredes

  41. Influence of a Backward-Facing Step on Swept-Wing Boundary-Layer Transition

    Article • AIAA Journal, January 2019, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Dr Rudolph A King

  42. Direct Numerical Simulation Database for Supersonic and Hypersonic Turbulent Boundary Layers

    Article • AIAA Journal, November 2018, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Lian Duan

  43. Blunt-Body Paradox and Improved Application of Transient-Growth Framework

    Article • AIAA Journal, July 2018, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Pedro Paredes

  44. Effect of Distributed Patch of Smooth Roughness Elements on Transition in a High-Speed Boundary Layer

    Article • June 2018, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  45. Interaction of a Backward-Facing Step and Crossflow Instabilities in Boundary-Layer Transition

    Article • AIAA Journal, February 2018, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Rudolph A King, Dr. Meelan Choudhari

  46. Nonlinear Evolution and Breakdown of Azimuthally Compact Crossflow Vortex Pattern over a Yawed Cone

    Article • January 2018, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  47. Stationary Crossflow Breakdown due to Interaction Between Secondary Instabilities

    Article • June 2017, American Institute of Aeronautics and Astronautics (AIAA)

    Lian Duan, Dr. Meelan Choudhari

  48. Computations of Crossflow Instability in Hypersonic Boundary Layers

    Article • June 2017, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Lian Duan

  49. Stabilization of hypersonic boundary layers by linear and nonlinear optimal perturbations

    Article • June 2017, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  50. Noise Simulations of the High-Lift Common Research Model

    Article • June 2017, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  51. Direct Numerical Simulation of Hypersonic Turbulent Boundary Layers inside an Axisymmetric Nozzle

    Article • January 2017, American Institute of Aeronautics and Astronautics (AIAA)

    Junji Huang, Dr. Meelan Choudhari, Lian Duan

  52. Transient Growth and Streak Instabilities on a Hypersonic Blunt Body

    Article • January 2017, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  53. Nonlinear Transient Growth and Boundary Layer Transition

    Article • June 2016, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  54. Stationary Crossflow Breakdown due to Mixed Mode Spectra of Secondary Instabilities

    Article • June 2016, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Lian Duan

  55. Influence of Stationary Crossflow Modulation on Secondary Instability

    Article • June 2016, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  56. Transient Growth Analysis of Compressible Boundary Layers with Parabolized Stability Equations

    Article • January 2016, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  57. The Effect of Acoustic Forcing on Instabilities and Breakdown in Swept-Wing Flow Over a Backward-Facing Step

    Article • January 2016, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Dr Rudolph A King

  58. Control of Crossflow Transition at High Reynolds Numbers Using Discrete Roughness Elements

    Article • AIAA Journal, January 2016, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Craig L Streett, Dr. Meelan Choudhari

  59. Pressure Gradient Effects on Supersonic Transition over Axisymmetric Bodies at Incidence

    Article • AIAA Journal, December 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Keisuke Fujii

  60. Transition Analysis for the Ascent Phase of HIFiRE-1 Flight Experiment

    Article • Journal of Spacecraft and Rockets, September 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  61. Discrete-Roughness-Element-Enhanced Swept-Wing Natural Laminar Flow at High Reynolds Numbers

    Article • AIAA Journal, August 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Wei Liao, Dr. Meelan Choudhari

  62. Computations of Disturbance Amplification Behind Isolated Roughness Elements and Comparison with Measurements

    Article • June 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Dr Rudolph A King

  63. Direct Numerical Simulation of Transition due to Traveling Crossflow Vortices

    Article • June 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Lian Duan

  64. The Effect of Backward-facing Step Height on Instability Growth and Breakdown in Swept-Wing Boundary-Layer Transition

    Article • June 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Dr Rudolph A King

  65. Assessment of Slat Noise Predictions for 30P30N High-Lift Configuration from BANC-III Workshop

    Article • June 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  66. Influence of Spanwise Boundary Conditions on Slat Noise Simulations

    Article • June 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  67. The Interaction of a Backward-Facing Step and Crossflow Instabilities in Boundary-Layer Transition

    Article • January 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Dr Rudolph A King

  68. Acoustic Radiation from High-Speed Turbulent Boundary Layers in a Tunnel-like Environment

    Article • January 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Lian Duan

  69. Boundary-Layer Stability Analysis of the Mean Flows Obtained Using Unstructured Grids

    Article • Journal of Aircraft, January 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  70. Experimental Study on Slat Noise from 30P30N Three-Element High-Lift Airfoil at JAXA Hard-Wall Lowspeed Wind Tunnel

    Article • June 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Kazuomi Yamamoto

  71. An Experimental Study of Roughness-Induced Instabilities in a Supersonic Boundary Layer

    Article • June 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Dr Rudolph A King

  72. Grid Sensitivity Study for Slat Noise Simulations

    Article • June 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  73. Acoustics and Surface Pressure Measurements from Tandem Cylinder Configurations

    Article • June 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari

  74. Analysis of Numerical Simulation Database for Acoustic Radiation from High-Speed Turbulent Boundary Layers

    Article • June 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Lian Duan

  75. An Experimental Investigation of the 30P30N Multi-Element High-Lift Airfoil

    Article • June 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, kyle pascioni

  76. Direct Numerical Simulations of High-Speed Turbulent Boundary Layers over Riblets

    Article • January 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Lian Duan

  77. Nonlinear Development and Secondary Instability of Traveling Crossflow Vortices

    Article • January 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Meelan Choudhari, Lian Duan