All Stories

  1. Trajectory Optimization of eVTOL and Conventional Aircraft: A Comparative Analysis of Vortex Particle Method and Vortex Lattice + Blade Element Momentum Theory

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

    Dr Andrew Ning

  2. Solving Large, Unsteady, Potential Flow Boundary Element Problems in O(n) Time

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

    Dr Andrew Ning

  3. Review of Computational Models for Large-Scale MDAO of Urban Air Mobility Concepts

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

    Alicia Kim, Dr Jeffrey T Chambers, Dr Andrew Ning, Alexandre GUIBERT, Chunting Chris Mi, Dr. Darshan Sarojini, Ganesh Raghavendran

  4. Stable Vortex Particle Method Formulation for Meshless Large-Eddy Simulation

    Article • AIAA Journal, November 2023, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Andrew Ning

  5. FLOWUnsteady: An Interactional Aerodynamics Solver for Multirotor Aircraft and Wind Energy

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

    Dr Andrew Ning

  6. IEA Wind Energy Task 37 - System Engineering - Aerodynamic Optimization Case Study

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

    Dr Andrew Ning

  7. Optimization of Turbine Tilt in a Wind Farm

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

    Dr Andrew Ning, Jared Thomas

  8. A Comparison of Aerodynamics Models for Optimizing the Takeoff and Transition of a Bi-wing Tailsitter

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

    Dr Andrew Ning

  9. Gradient-Based Optimization of Solar-Regenerative High-Altitude Long-Endurance Aircraft

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

    Dr Andrew Ning

  10. High-Fidelity Modeling of Multirotor Aerodynamic Interactions for Aircraft Design

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

    Dr Andrew Ning

  11. Unsteady Aerodynamic Analysis of Wind Harvesting Aircraft

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

    Dr Andrew Ning

  12. Takeoff and Performance Trade-Offs of Retrofit Distributed Electric Propulsion for Urban Transport

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

    Dr Andrew Ning

  13. Modeling Multirotor Aerodynamic Interactions Through the Vortex Particle Method

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

    Dr Andrew Ning

  14. An Examination into the Defining Characteristics of Flexible Solar Aircraft Configurations through Optimization

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

    Dr Andrew Ning

  15. Dynamic Optimization of High-Altitude Solar Aircraft Trajectories Under Station-Keeping Constraints

    Article • Journal of Guidance Control and Dynamics, March 2019, American Institute of Aeronautics and Astronautics (AIAA)

    Abe Martin, Dr Andrew Ning

  16. Effect of Communication on the Surveillance Performance of a Large Swarm of UAVs

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

    Dr Andrew Ning

  17. Combined Trajectory and Propulsion Optimization for Solar-Regenerative High-Altitude Long Endurance Unmanned Aircraft

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

    Dr Andrew Ning

  18. Best Practices for Wake Model and Optimization Algorithm Selection in Wind Farm Layout Optimization

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

    Andrew PJ Stanley, Dr Andrew Ning, Jared Thomas

  19. Comparison of Wind Farm Layout Optimization Results Using a Simple Wake Model and Gradient-Based Optimization to Large Eddy Simulations

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

    Dr Andrew Ning, Jared Thomas

  20. Improving the FLORIS wind plant model for compatibility with gradient-based optimization

    Article • Wind Engineering, August 2017, SAGE Publications

    Dr Andrew Ning, Jared Thomas

  21. Gradient-Based Optimization of Wind Farms with Different Turbine Heights

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

    Dr Andrew Ning, Andrew PJ Stanley

  22. UAV Path-Planning using Bezier Curves and a Receding Horizon Approach

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

    Dr Andrew Ning

  23. Aerodynamic Performance Characterization of Leading Edge Protrusions on Small Propellers

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

    Dr Andrew Ning

  24. Parameterized Vertical-Axis Wind Turbine Wake Model Using CFD Vorticity Data

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

    Dr Andrew Ning

  25. Unmanned aircraft path planning for sense and avoid

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

    Tim McLain, Dr Andrew Ning

  26. Development and Validation of a New Blade Element Momentum Skewed-Wake Model within AeroDyn

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

    Dr Andrew Ning

  27. Extended Formation Flight at Transonic Speeds

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

    Dr Andrew Ning

  28. Automatic Evaluation of Multidisciplinary Derivatives Using a Graph-Based Problem Formulation in OpenMDAO

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

    Justin S Gray, Dr Andrew Ning

  29. Aircraft Route Optimization for Formation Flight

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

    Dr Andrew Ning

  30. Sensitivity Analysis of Wind Plant Performance to Key Turbine Design Parameters: A Systems Engineering Approach

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

    Dr Andrew Ning

  31. Inviscid Analysis of Extended-Formation Flight

    Article • AIAA Journal, July 2013, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Andrew Ning

  32. Objectives and Constraints for Wind Turbine Optimization

    Article • January 2013, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Andrew Ning

  33. Aircraft Route Optimization for Heterogeneous Formation Flight

    Article • April 2012, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Andrew Ning

  34. Compressibility Effects of Extended Formation Flight

    Article • June 2011, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Andrew Ning

  35. Aerodynamic Performance of Extended Formation Flight

    Article • Journal of Aircraft, May 2011, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Andrew Ning

  36. Multidisciplinary Considerations in the Design of Wings and Wing Tip Devices

    Article • Journal of Aircraft, March 2010, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Andrew Ning

  37. Aerodynamic Performance of Extended Formation Flight

    Article • January 2010, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Andrew Ning

  38. Tip Extensions, Winglets, and C-wings: Conceptual Design and Optimization

    Article • August 2008, American Institute of Aeronautics and Astronautics (AIAA)

    Dr Andrew Ning