Journal Papers and Book Chapters
- "Wall-Pressure Fluctuations in an Axisymmetric Boundary Layer Under Strong Adverse Pressure Gradient", Balantrapu, A., Alexander, W.N., and Devenport, W.J., J. Fluid Mech., vol. 960, A28, 2023.
- "Identification of Anomalies in Microphone Array Measurements of Trailing Edge Noise by Eigenstructure Analysis", Defreitas, A., and Alexander, W.N., J. Acoust. Soc. Am., vol. 153(2), pp. 1073-1083, 2023.
- “Investigating the Aeroacoustic Properties of Porous Fabrics”, Szoke, M., Devenport, W.J., Borgoltz, A., Alexander, W.N., Hari, N., Glegg, S.A.L., Li, A., Vallabh, R., and Seyam, A.M., AIAA Journal, vol. 60(6), pp. 3651-3660, 2022.
- “Anomaly Detection in Wind Tunnel Experiments by Principal Component Analysis”, Defreitas, A., Alexander, W.N., Devenport, W.J., Merkes, S., Leman, S., Smith, E., and Borgoltz, A., AIAA Journal, vol. 60(4), pp. 2297-2307, 2022.
- “The Structure of a Highly-Decelerated Axi-symmetric Turbulent Boundary Layer”, Balantrapu, A., Hickling, C., Alexander, W.N., and Devenport, W.J., Journal of Fluid Mechanics, vol. 929, A9, 2021.
- "Excitation of Airborne Acoustic Surface Modes Driven by a Turbulent Flow", Damani, S., Alexander, W.N., Devenport, W.J., Pearce, B.P, Shelley, S.R., Starkey, T.A., Hibbins, A.P., and Sambles, J.R., AIAA Journal, vol. 59(12), pp. 5011-5019, 2021.
- "Understanding the Impact of a Serrated Trailing Edge on the Unsteady Hydrodynamic Field", S. Letica and W.N. Alexander, J. Aerosp. Eng., vol. 34(4), 2021.
- "Aeroacoustics of Rounded Forward-Facing Steps: Far-Field Behavior", M. Awasthi, W. Devenport, W.N. Alexander, and S. Glegg, AIAA Journal, vol. 57(5), pp. 1899-1913, 2019.
- "Aeroacoustics of Rounded Forward-Facing Steps: Near-Field Behavior", M. Awasthi, W. Devenport, W.N. Alexander, and S. Glegg, AIAA Journal, vol. 57(3), pp. 1237-1249, 2019.
- "Turbulence Ingestion Noise from an Open Rotor with Different Inflows", W.N. Alexander, W. Devenport, N. Molinaro, A. Balantrapu, C. Hickling, S. Glegg, and J. Pectol, Flinovia - Flow Induced Noise and Vibration Issues and Aspects-II, Springer International Publishing AG, pp. 113-129, 2019.
- "Aeroacoustics of a Rotor Ingesting a Planar Boundary Layer at High Thrust", H. Murray, W. Devenport, W.N. Alexander, S.A.L Glegg and D. Wisda, Journal of Fluid Mechanics, vol. 850, pp. 212-245, 2018.
- "The Sound of Flow Over Rigid Walls", W. Devenport, W.N. Alexander, S. Glegg, and M. Wang, Annual Reviews of Fluid Mechanics, vol. 50, pp. 435-458, 2018.
- "Noise from a Rotor Ingesting a Thick Boundary Layer and Relation to Measurements of Ingested Turbulence", W.N. Alexander, W. Devenport, and S. Glegg, Journal of Sound and Vibration, vol. 409, pp. 227-240, 2017.
- "Bio-Inspired Trailing Edge Noise Control", I. Clark, W.N. Alexander, W. Devenport, S. Glegg, J. Jaworski, C. Daly, and N. Peake, AIAA Journal, vol. 55 (3), pp. 740-754, 2017.
- “Bio-Inspired Canopies for the Reduction of Roughness Noise”, I. Clark, C. Daly, W. Devenport, W.N. Alexander, N. Peake, J. Jaworski, and S., Glegg, Journal of Sound and Vibration, vol. 385, pp. 33-54, 2016.
- “Wall-Mounted Finite Airfoil Noise Production and Prediction”, D. Moreau, C. Doolan, W.N. Alexander, T. Meyers, and W.J. Devenport, AIAA Journal, vol. 54 (5), pp. 1637-1651, 2016.
- “Broadband Rotor Noise Predictions Using a Time Domain Approach”, S.A.L. Glegg, W.J. Devenport, and W.N. Alexander, Journal of Sound and Vibration, vol. 335 (20), pp. 115-124, 2015.
- “Predictive Limits of Acoustic Diffraction Theory for Rough Wall Flows”, W.N. Alexander, W.J. Devenport, and S.A.L. Glegg, AIAA Journal, vol. 52 (3), pp. 634-642, 2014.
- “Predictions of Sound from Rough Wall Boundary Layers”, W.N. Alexander, W.J. Devenport, and S.A.L. Glegg, AIAA Journal, vol. 51 (2), pp. 465-475, 2013.
- “Measurements of Roughness Noise”, W.J. Devenport, D.L. Grissom, W.N. Alexander, B.S. Smith, and S.A.L. Glegg, Journal of Sound and Vibration, vol. 330 (17), pp. 4250-4273, 2011.
- “Measuring Surface Pressure with Far Field Acoustics”, W. Devenport, E.A. Wahl, S.A.L. Glegg, W.N. Alexander, and D.L. Grissom, Journal of Sound and Vibration, vol. 329 (19), pp. 3958-3971, 2010.
Conference Papers
- “Directionally Sensitive Sensor Based on Acoustic Metamaterials”, Braaten, E., Damani, S., Alexander, W.N., Devenport, W.J., Starkey, T., and Sambles, J.R., AIAA Aviation 2023 Forum, San Diego, CA, June 12-16, 2023, AIAA 2023-3828.
- “Ingestion of Transient Disturbances into an Open Rotor Immersed in a Boundary Layer”, Banks, J.T., Huang, S.F., Palanganda, S.T., Chen, D., Alexander, W.N., and Devenport, W.J., AIAA Aviation 2023 Forum, San Diego, CA, June 12-16, 2023, AIAA 2023-3653.
- “Acoustics of an Open Rotor Ingesting a Planar Turbulent Boundary Layer with Pressure Gradient Effects”, Huang, S.F., Palanganda, S.T., Banks, J.T., Alexander, W.N., and Devenport, W.J., AIAA SciTech 2023 Forum, National Harbor, MD, Jan. 23-27, 2023, AIAA 2023-0212.
- "CFD-based Aerodynamic and Aeroacoustic Analysis of Large Payload Multi-Copter Rotors", Pisharoti, N., Whelchel, J., Alexander, W.N., and Brizzolara, AIAA SciTech 2023 Forum, National Harbor, MD, Jan. 23-27, 2023, AIAA 2023-0617.
- "Experimental and Numerical Investigation of Isolated Swept Rotors for UAVs", Pisharoti, N., Whelchel, J., Alexander, W.N., and Brizzolara, Vertical Flight Society’s 79th Annual Forum, West Palm Beach, FL, May 16–18, 2023.
- “A Comparison of Turbulence Ingestion of Axisymmetric and Non-Axisymmetric Wakes into a Rotor”, Banks, J., Butt, H., Balantrapu, N.A., Hickling, C., Alexander, W.N., Devenport, W.J., and Glegg, S.A.L., AIAA SciTech 2022 Forum, Jan. 3-7, 2022, San Diego, CA, AIAA 2022-2528.
- “Measured Acoustic Characteristics of Low Tip Speed eVTOL Rotors in Hover”, Fleming, J., Langford, M., Gold, J., Schwartz, K., Wisda, D., Alexander, W.N., and Whelchel, J., VFS Forum 78, May 10-12, 2022, Ft. Worth, TX, Paper 1253.
- “Turbulence Ingestion of a Non-Axisummetric Wake by an Open Rotor”, Banks, J., Butt, H., Balantrapu, N.A., Devenport, W.J., Alexander, W.N., Glegg, S.A.L., and Hickling, C., 28th AIAA/CEAS Aeroacoustics Conference, June 14-17, 2022, Southampton, UK, AIAA 2022-3032.
- “Examination of Broadband and Tonal Noise Sources Produced by eVTOL Propellers and Drive Systems”, Whelchel, J., Alexander, W.N., Pisharoti, N., Brizzolara, S., Murali, R., and Stilwell, D., 28th AIAA/CEAS Aeroacoustics Conference, June 14-17, 2022, Southampton, UK, AIAA 2022-3035.
- “Resonator-based Pressure Sensor for Wall Pressure”, Damani, S., Braaten, E., Szoke, M., Alexander, W.N., Devenport, W.J., Balantrapu, N.A., Pearce, B.P., Starkey, T.A., Hibbins, A.P., and Sambles, J.R., 28th AIAA/CEAS Aeroacoustics Conference, June 14-17, 2022, Southampton, UK, AIAA 2022-2956.
- "Active Control of Trailing Edge Noise", Buck, S., Oerlemans, S., Hernandez Mascarell, O., Joseph, P., Alexander, W.N., and Letica, S., AIAA Aviation 2021 Forum, Virtual, Aug. 2-6, 2021, AIAA 2021-2275.
- "sUAS Rotor-Airframe Interaction", Whelchel, J., and Alexander, W.N., AIAA Aviation 2021 Forum, Virtual, Aug. 2-6, 2021, AIAA 2021-2212.
- "Beamforming of Broadband Rotor Noise", Glegg, S.A.L., Hickling, C., Balantrapu, N.A., Banks, J.T., Butt, H., Alexander, W.N., and Devenport, W.J., AIAA Aviation 2021 Forum, Virtual, Aug. 2-6, 2021, AIAA 2021-2189.
- "A Bayesian Mixture Model Approach to Anomaly Detection with Application to Wind Tunnel Experiments", Merkes, S.N., Leman, S., Smith, E., Defreitas, A., Alexander, W.N., and Devenport, W.J., AIAA SciTech 2021 Forum, Jan. 11-15 and 19-21, 2021, Virtual, AIAA 2021-1268. *2021 AIAA Sensor Systems and Information Fusion Best Paper Award
- "Identification of Anomalies in Microphone Array Measurements", Defreitas, A., and Alexander, W.N., AIAA SciTech 2021 Forum, Jan. 11-15 and 19-21, 2021, Virtual, AIAA 2021-1504.
- “Ingestion of Non-Uniform Turbulent Inflow by a Rotor: Sound Production and Propagation”, W.N. Alexander, C. Hickling, A. Balantrapu, and W.J. Devenport, 33rd Symposium on Naval Hydrodynamics, Oct. 2020, Osaka, JP (Virtual), Paper No. 114.
- “Excitation of Airborne Acoustic Surface Modes Driven by a Turbulent Flow”, S. Damani, E. Totten, L. Davies, W.N. Alexander, W.J. Devenport, B.P. Pearce, S.R. Shelley, T.A. Starkey, A.P. Hibbins, and J.R. Sambles, AIAA Aviation 2020 Forum, June 2020, Virtual, AIAA 2020-2587.
- “Improved Anomaly Detection in Experimental Wind Tunnel Data using PCA”, A. Defreitas, W.N. Alexander, W.J. Devenport, S. Merkes, S. Leman, E. Smith, and A. Borgoltz, AIAA SciTech 2020 Forum, Orlando, FL., Jan. 2020, AIAA 2020-1198.
- “Propeller Noise in Confined Anechoic and Open Environments”, J. Whelchel, W.N. Alexander, and N. Intaratep, AIAA SciTech 2020 Forum, Orlando, FL., Jan. 2020, AIAA 2020-1252.
- “Wall Pressure Fluctuations in a Axisymmetric Turbulent Boundary Layer under Strong Adverse Pressure Gradient”, N.A. Balantrapu, D.J. Fritsch, A.J. Millican, C. Hickling, A. Gargiulo, V. Vishwanathan, W.N. Alexander, and W.J. Devenport, AIAA SciTech 2020 Forum, Orlando, FL., Jan. 2020, AIAA 2020-0572.
- "Predicting Community Noise of sUAS", W.N. Alexander, J. Whelchel, N. Intaratep, and A. Trani, 25th AIAA/CEAS Aeroacoustics Conference, Delft, NL, May 2019, AIAA-2019-2686.
- "Turbulence Ingestion into a Rotor at the Rear of an Axisymmetric Body", C. Hickling, A. Balantrapu, W.N. Alexander, A. Millican, W.J. Devenport, and S.A.L. Glegg, 25th AIAA/CEAS Aeroacoustics Conference, Delft, NL, May 2019, AIAA-2019-2571.
- "Development and Calibration of a new Anechoic Wall Jet Wind Tunnel", A. Kleinfelter, R. Repasky, N. Hari, S. Letica, V. Vishwanathan, L. Organski, W.N. Alexander, and W.J. Devenport, AIAA SciTech 2019 Forum, San Diego, CA, Jan. 2019, AIAA-2019-1936.
- "Anomaly Detection in Wind Tunnel Experiments by Principal Component Analysis", A. Defreitas, W.N. Alexander, W. Devenport, S. Merkes, S. Leman, E. Smith, and A. Borgoltz, AIAA SciTech 2019 Forum, San Diego, CA, Jan. 2019, AIAA-2019-2380.
- "Robust Anomaly Detection for Large Scale Multi-Type Sensor Systems", S. Merkes, A. Defreitas, E. Smith, W.N. Alexander, W. Devenport, and S. Leman, AIAA SciTech 2019 Forum, San Diego, CA, Jan. 2019, AIAA-2019-2265.
- "Proper Orthogonal Decomposition and its Use in the Analysis of Fluid Structure Interaction Noise", S. Glegg, W. Devenport, N. Molinaro, W.N. Alexander, 24th AIAA/CEAS Aeroacoustics Conference, Atlanta, GA, June 2018, AIAA-2018-3787.
- "Benchmarking of a Broadband Noise Prediction Method", S. Glegg, J. Pectol, W. Devenport, and W. N. Alexander, 2018 AIAA Aerospace Sciences Meeting, Kissimmee, FL, Jan. 2018, AIAA-2018-1005.
- "Analysis of Low Frequency Acoustic Sources in the Virginia Tech Stability Wind Tunnel", W. N. Alexander, and C. Hickling, ASME 2017 International Mechanical Engineering Congress and Exposition, Tampa, FL, Nov. 2017, IMECE2017-70587.
- "Anomaly Detection in Large-Scale Wind Tunnel Tests Using Gaussian Processes", I. Crandell, A. Millican, S. Leman, E. Smith, W. N. Alexander, W. J. Devenport, R. Vasta, R. Gramacy, and M. Binois, 33rd AIAA Aerodynamic Measurement Technology and Ground Testing Conference, Denver, CO, June 2017, AIAA-2017-4131.
- "Numerical Investigation of Bio-Inspired Blade Designs at High Reynolds Numbers for Ultra-Quiet Aircraft and Wind Turbines", A. Bodling, B. R. Agrawal, A. Sharma, I. Clark, W. N. Alexander, and W. J. Devenport, 23rd AIAA/CEAS Aeroacoustics Conference, Denver, CO, June 2017, AIAA-2017-3502.
- "Bio-Inspired Finlets for the Reduction of Marine Rotor Noise", I. Clark, W. N. Alexander, and W. J. Devenport, 23rd AIAA/CEAS Aeroacoustics Conference, Denver, CO, June 2017, AIAA-2017-3867.
- "Efficient Beamforming Techniques for Investigating Turbulence Ingestion Noise with an Inhomogeneous Inflow", C. Hickling, W. N. Alexander, N. Molinaro, W. J. Devenport, and S. Glegg, 23rd AIAA/CEAS Aeroacoustics Conference, Denver, CO, June 2017, AIAA-2017-4179.
- "The Ingestion of Wake Turbulence into an Open Rotor", N. Molinaro, A. Balantrapu, C. Hickling, W. N. Alexander, W. J. Devenport, and S. Glegg, 23rd AIAA/CEAS Aeroacoustics Conference, Denver, CO, June 2017, AIAA-2017-3868.
- "Sound Radiation from a Rotor Operating in the Wake of a Cylinder", S. Glegg, J. Grant, W. J. Devenport, and W. N. Alexander, 55th AIAA Aerospace Sciences Meeting, Grapevine, TX, Jan. 2017, AIAA-2017-1172.
- "Owl-Inspired Trailing Edge Noise Treatments: Acoustic and Flow Measurements", A. Millican, I. Clark, W. J. Devenport, and W. N. Alexander, 55th AIAA Aerospace Sciences Meeting, Grapevine, TX, Jan. 2017, AIAA-2017-1177.
- "Numerical Investigations of Bio-Inspired Blade Designs to Reduce Broadband Noise in Aircraft Engines and Wind Turbines", A. Bodling, B. R. Agrawal, A. Sharma, I. Clark, W. N. Alexander , and W. J. Devenport, 55th AIAA Aerospace Sciences Meeting, Grapevine, TX, Jan. 2017, AIAA-2017-0458.
- “Experimental Study of Quadcopter Acoustics and Performance at Static Conditions”, N. Intaratep, W. N. Alexander, W. Devenport, S. Grace, and A. Dropkin, 22nd AIAA/CEAS Aeroacoustics Conference, Lyon, FR, May 2016, AIAA-2016-2873.
- “Phased Array Measurements of a Rotor Ingesting a Turbulent Shear Flow”, W. N. Alexander, N. Molinaro, C. Hickling, H. Murray, W. Devenport, and S. Glegg, 22nd AIAA/CEAS Aeroacoustics Conference, Lyon, FR, May 2016, AIAA-2016-2994.
- “Experimental and Theoretical Analysis of Bio-Inspired Trailing Edge Noise Control Devices”, I. Clark, D. Baker, W. N. Alexander, W. Devenport, S. Glegg, J. Jaworski, and N. Peake, 22nd AIAA/CEAS Aeroacoustics Conference, Lyon, FR, May 2016, AIAA-2016-3020.
- “Sound Radiation from a Rotor Operating at High Thrust Near a Wall”, S. Glegg, J. Grant, H. Murray, W. Devenport, W. N. Alexander, 22nd AIAA/CEAS Aeroacoustics Conference, Lyon, FR, May 2016, AIAA-2016-2995.
- “Broadband Noise from a Rotor Operating at an Angle to the Mean Flow”, S. Glegg, J. Grant, D. Wisda, H. Murray, W. N. Alexander, W. Devenport, 54th Aerospace Sciences Meeting, San Diego, CA, January 2016, AIAA-2016-1269
- “An Experimental Investigation of Wall-Mounted Finite Airfoil Turbulent Boundary Layer Noise”, D. Moreau, C. Doolan, W. Alexander, T. Meyers, and W. Devenport, 3rd Symposium on Fluid-Structure-Sound Interactions and Control (FSSIC), Perth, Australia, July 2015.
- “Sound Radiation from a Rotor Partially Immersed in a Turbulent boundary Layer”, S. Glegg, A. Buono, J. Grant, F. Lachowski, W. Devenport, and W. Alexander, 21st AIAA/CEAS Aeroacoustics Conference, Dallas, TX, 22-26 June 2015, AIAA-2015-3261.
- “Bio-Inspired Trailing Edge Noise Control”, I. Clark, W. Alexander, W. Devenport, S. Glegg, J. Jaworski, C. Daly, and N. Peake, 21st AIAA/CEAS Aeroacoustics Conference, Dallas, TX, 22-26 June 2015, AIAA-2015-2365.
- “Sound and Distortion Produced by a Braking Rotor Operating in a Planar Boundary Layer with Application to Wind Turbines”, H. Murray, D. Wisda, W. Alexander, M. Nelson, W. Devenport, and S. Glegg, 21st AIAA/CEAS Aeroacoustics Conference, Dallas, TX, 22-26 June 2015, AIAA-2015-2682.
- “Wall-Mounted Finite Airfoil Noise Production and Prediction”, D. Moreau, C. Doolan, W. Alexander, T. Meyers, and W. Devenport, 21st AIAA/CEAS Aeroacoustics Conference, Dallas, TX, 22-26 June 2015, AIAA-2015-2831.
- “Flow Distortion and Noise Produced by a Thrusting Rotor Ingesting a Planar Turbulent Boundary Layer”, D. Wisda, H. Murray, W. Alexander, M. Nelson, W. Devenport, and S. Glegg, 21st AIAA/CEAS Aeroacoustics Conference, Dallas, TX, 22-26 June 2015, AIAA-2015-2981.
- “Noise Produced by Fabric and Wire Mesh Covered Panels in Low-Speed Anechoic Wind Tunnels”, W. Alexander and W. Devenport, 21st AIAA/CEAS Aeroacoustics Conference, Dallas, TX, 22-26 June 2015, AIAA-2015-3261.
- “Noise from Boundary Layer Flow over Fabric Covered Perforate Panels”, W.N. Alexander and W. Devenport, 20th AIAA/CEAS Aeroacoustics Conference, Atlanta, GA, June 2014, AIAA-2014-2908.
- “Sound Radiated from a Rotor and Its Relation to Rotating Frame Measurements of Ingested Turbulence”, W.N. Alexander, W. Devenport, D. Wisda, M.A. Morton, and S.A.L. Glegg, 20th AIAA/CEAS Aeroacoustics Conference, Atlanta, GA, June 2014, AIAA-2014-2746.
- “Boundary Layer Ingestion Noise and Turbulence Scale Analysis at High and Low Advance Ratios”, D. Wisda, W.N. Alexander, W. Devenport, and S.A.L. Glegg, 20th AIAA/CEAS Aeroacoustics Conference, Atlanta, GA, June 2014, AIAA-2014-2608.
- “Aeroacoustics of 2D and 3D Surface Discontinuities”, M. Awasthi, W. Devenport, T. Meyers, W.N. Alexander, and S.A.L. Glegg, 20th AIAA/CEAS Aeroacoustics Conference, Atlanta, GA, June 2014, AIAA-2014-2461.
- “Noise from a Rotor Ingesting a Planar Turbulent Boundary Layer”, W.N. Alexander, W. Devenport, M.A. Morton, and S.A.L. Glegg, 19th AIAA/CEAS Aeroacoustics Conference, Berlin, DE, May 2013, AIAA-2013-2285.
- “High Reynolds Number Turbulent Boundary Layer Flow over Rough Walls: Wall Pressure Spectrum and Noise”, T. Meyers, W.N. Alexander, W. Devenport, and S.A.L. Glegg, 19th AIAA/CEAS Aeroacoustics Conference, Berlin, DE, May 2013, AIAA-2013-2249.
- “Inflow Distortion Noise in a Non Axisymmetric Flow”, S.A.L Glegg, E. Kawashima, F. Lachowski, W. Devenport, W.N. Alexander, 19th AIAA/CEAS Aeroacoustics Conference, Berlin, DE, May 2013, AIAA-2013-2286.
- “Rotor Inflow Noise Caused by a Boundary Layer: Inflow Measurements and Noise Predictions”, M. Morton, W. Devenport, W.N. Alexander, S.A.L. Glegg, A. Borgoltz, 18th AIAA/CEAS Aeroacoustics Conference, Colorado Springs, CO, June 2012, AIAA-2012-2120.
- “Aerodynamic Noise from Sparse Surface Roughness”, W.N. Alexander, W.J. Devenport, and S.A.L. Glegg, 17th AIAA/CEAS Aeroacoustics Conference, Portland, OR, June 2011, AIAA-2011-2740.
- “Directivity of Noise from Discrete Elements in a Turbulent Boundary Layer”, W.N. Alexander, W. Devenport, S.A.L. Glegg, and R. Van Buren, 16th AIAA/CEAS Aeroacoustics Conference, Stockholm, SE, June 2010, AIAA-2010-3773.
- “Boundary Layer Noise from Discrete Roughness Elements”, W.N. Alexander, M.B. Rasnick, M.R. Catlett, W. Devenport, and S.A.L. Glegg, 15th AIAA/CEAS Aeroacoustics Conference, Miami, FL, May 2009, AIAA-2009-3310.
- “The Relationship Between Roughness Noise and the Near-Field Pressure Spectrum”, B.S. Smith, W.N. Alexander, W. Devenport, S.A.L. Glegg, and D.L. Grissom, 14th AIAA/CEAS Aeroacoustics Conference, Vancouver, BC, May 2008, AIAA-2008-2904.
Conference Abstracts, Posters, Reports, and Trade Journal Publications
- “Adapting the Unique Features of the Owl Wing”, W.N. Alexander, WindTech International, July 27, 2020, avail: https://www.windtech-international.com/editorial-features/bio-inspired-noise-reduction
- “Application of Acoustic Metasurfaces to Turbulent Flow”, T. Starkey, W. Devenport, S. Shelley, S. Damani, B. Pearce, E. Totten, L. Davies, A. Hibbins, N. Alexander, and R. Sambles, International Conference on Underwater Acoustics 2020, Sept. 9, 2020.
- "Noise from Multi-Rotor UAS and Community Impact", W.N. Alexander, In: “Technology for a Quieter America: UAS and UAV (Drone) Noise Emissions and Noise Control Engineering Technology: Workshop Final Report”, A. Akay, G.G. Fleming, R.D. Hellweg, G.C. Maling, and E.W. Wood, (Eds.), 2020 ,ISBN: 978-1-7325986-2-1, avail: http://www.inceusa.org/publications/technical-reports/
- "Finlets: Application in a Rotating System and Field Testing", W. Alexander, W. Devenport, A. Balantrapu, and I. Clark, NAWEA, Ames, IA, Sept. 2017.
- “Bio-Inspired Trailing Edge Noise Control”, I. Clark, W. Devenport, W. Alexander, S. Glegg, J. Jaworski, C. Daly, and N. Peake, NAWEA, Blacksburg, VA, June 2015.
- “Small Scale Rotor Testing to Characterize the Ingested Turbulence into Wind Turbines”, H. Murray, W. Alexander, and W. Devenport, Poster presented at NAWEA, Blacksburg, VA, June 2015.
- “The Structure and Noise Reduction Capacity of Owl Down”, J. Jawoski, I. Clark, W. N. Alexander, W. Devenport, C. Daly, N. Peake, S. Glegg, American Physical Society Division of Fluid Dynamics, San Francisco, CA, November 2014.
- “The Effect of Roughness Distribution on the Wall Pressure Spectrum of High Reynolds Number Turbulent Boundary Layers”, T. Meyers, W.N. Alexander, W. Devenport, 9th EuroMech Fluid Mechanic Conference, Rome, IT, Sept. 2012.
- “The Noise from Flow Over Rough Surfaces”, S. Glegg, W. Devenport, W.N. Alexander, 9th EuroMech Fluid Mechanic Conference, Rome, IT, Sept. 2012.