All Stories

  1. Aerodynamic Design Optimization for Natural Laminar Flow Airfoils

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

    Dr. Meelan Choudhari, Pedro Paredes

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. Transition Analysis for the Pazy Wing

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

    Dr. Meelan Choudhari

  12. 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

  13. 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

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

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

    Dr. Meelan Choudhari

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

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

    Dr. Meelan Choudhari

  16. 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

  17. 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

  18. 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

  19. Stability Analysis of Streaks Induced by Optimized Vortex Generators

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

    Pedro Paredes, Dr. Meelan Choudhari

  20. 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

  21. 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

  22. 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

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

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

    Pedro Paredes, Dr. Meelan Choudhari

  24. 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

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

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

    Dr. Meelan Choudhari

  26. Hypersonic Second Mode Instability Response to Shaped Roughness

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

    Dr. Meelan Choudhari

  27. 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

  28. 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

  29. Streak Instability Analysis on BOLT Configuration

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

    Dr. Meelan Choudhari, Pedro Paredes

  30. 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

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

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

    Dr. Meelan Choudhari

  32. 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

  33. 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

  34. 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

  35. 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

  36. 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

  37. 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

  38. 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

  39. 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

  40. 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

  41. 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

  42. 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

  43. 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

  44. 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

  45. Stationary Crossflow Breakdown due to Interaction Between Secondary Instabilities

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

    Lian Duan, Dr. Meelan Choudhari

  46. Computations of Crossflow Instability in Hypersonic Boundary Layers

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

    Dr. Meelan Choudhari, Lian Duan

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

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

    Dr. Meelan Choudhari

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

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

    Dr. Meelan Choudhari

  49. 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

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

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

    Dr. Meelan Choudhari

  51. Nonlinear Transient Growth and Boundary Layer Transition

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

    Dr. Meelan Choudhari

  52. 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

  53. Influence of Stationary Crossflow Modulation on Secondary Instability

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

    Dr. Meelan Choudhari

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

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

    Dr. Meelan Choudhari

  55. 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

  56. 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

  57. 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

  58. 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

  59. 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

  60. 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

  61. 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

  62. 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

  63. 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

  64. Influence of Spanwise Boundary Conditions on Slat Noise Simulations

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

    Dr. Meelan Choudhari

  65. 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

  66. 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

  67. 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

  68. 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

  69. 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

  70. Grid Sensitivity Study for Slat Noise Simulations

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

    Dr. Meelan Choudhari

  71. Acoustics and Surface Pressure Measurements from Tandem Cylinder Configurations

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

    Dr. Meelan Choudhari

  72. 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

  73. 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

  74. 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

  75. Nonlinear Development and Secondary Instability of Traveling Crossflow Vortices

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

    Dr. Meelan Choudhari, Lian Duan