All Stories

  1. Prediction of Broadband Blade-Wake Back-Scatter Noise from a Hovering Ideally Twisted Rotor using OVERFLOW2-ANOPP2

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

    Christopher Thurman, Dr Leonard V Lopes

  2. Prediction-Based Approaches for Generation of Noise-Power-Distance Data with Application to Urban Air Mobility Vehicles

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

    Dr. Stephen A Rizzi, Dr Leonard V Lopes

  3. Acoustic and Performance Characteristics of an Ideally Twisted Rotor in Hover

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

    Dr Leonard V Lopes

  4. Physics-Informed Broadband Noise Source Identification and Prediction of an Ideally Twisted Rotor

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

    Dr Leonard V Lopes, Christopher Thurman

  5. Toward Adjoint-Based Aeroacoustic Optimization for Propeller and Rotorcraft Applications

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

    Dr Leonard V Lopes, Dr. Oktay Baysal, Ramiz Omur Icke

  6. Robust Acoustic Objective Functions and Sensitivities in Adjoint-Based Design Optimizations

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

    Dr Leonard V Lopes, Dr. Venkat R Iyer

  7. Gradient-Based Propeller Optimization with Acoustic Constraints

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

    Justin S Gray, Dr Leonard V Lopes

  8. Compact Assumption Applied to Monopole Term of Farassat’s Formulations

    Article • Journal of Aircraft, September 2017, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Leonard V Lopes

  9. A Requirements-Driven Optimization Method for Acoustic Liners using Analytic Derivatives

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

    Dr Leonard V Lopes, Jeff Berton

  10. Robust Acoustic Objective Functions and Sensitivities in Adjoint-Based Design Optimizations

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

    Dr Leonard V Lopes, Dr. Venkat R Iyer

  11. Compact Assumption Applied to the Monopole Term of Farassat's Formulation

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

    Dr Leonard V Lopes

  12. Variability in the Propagation Phase of CFD-Based Noise Prediction: Summary of Results from Category 8 of the BANC-III Workshop

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

    Dr Taro T I Imamura, Dr Leonard V Lopes

  13. Auralization of Hybrid Wing–Body Aircraft Flyover Noise from System Noise Predictions

    Article • Journal of Aircraft, November 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Dr. Stephen A Rizzi, Dr Leonard V Lopes

  14. Noise Scaling and Community Noise Metrics for the Hybrid Wing Body Aircraft

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

    Dr Leonard V Lopes

  15. System Noise Assessment and the Potential for Low Noise Hybrid Wing Body Aircraft with Open Rotor Propulsion

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

    Dr Christopher J Bahr, Dr Leonard V Lopes

  16. Open Rotor Tone Shielding Methods for System Noise Assessments Using Multiple Databases

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

    Dr Christopher J Bahr, Dr Leonard V Lopes