Publications
Acoustics & Sensing
Langford, M., Fleming, J., Walton, W., Schwartz, K., Wisda, D., “Experimental and Numerical Investigation of Installed Ducted Propulsor Aeroacoustics”, AIAA SCITECH Forum, National Harbor, MD, January 23-27, 2023.
Fleming, J., Gold, J., Langford, M., Schwartz, K., Wisda, D., Alexander, N., and Whelchel, J., “Measured Acoustic Characteristics of Low Tip Speed eVTOL Rotors in Hover”, Vertical Flight Society 78th Annual Forum, Ft. Worth, TX, USA. May 10-12, 2022.
Brown, K., Fleming, J., Langford, M., Walton, W., Ng, W., Schwartz, K., and Wisda, D., “Benchmarking a Reduced-Order Prediction of Unsteady Propeller Loading and Noise from Pylon Wake Ingestion”, AIAA 2020-2590, AIAA Aviation 2020 Forum, June 15-19, Virtual Event.
Schwartz, K., Burdisso, R., Witcher, B., Brown, K., Fleming, J., and Combs, C., “Development of a Ducted Propulsor for BLI Electric Regional Aircraft - Part II: Aeroacoustic Analysis”, AIAA 2019-3854, AIAA Propulsion and Energy 2019 Forum, August 19-22, Indianapolis, IN.
Schwartz, K., Burdisso, R., Langford, M., “Redesign of Continuous Miner Scrubber Fan System Ductwork for Noise Reduction”, Internoise 2018, Chicago, IL, August 2018, IN18_1389.
Schwartz K., Burdisso R., Langford M., and Ravetta P., “Redesign of Rotor and Stators for Noise Reduction of Continuous Miner Scrubber Fan”, NOISE-CON 2017, Grand Rapids, MI, July 2017, NC17_381.
Anderson, J., Ng, W., Fleming, J., “A Technique to Estimate Flow Distortion in Boundary Layer Ingesting Serpentine Inlets Using Unsteady Wall-Pressures”, 45th AIAA Aerospace Sciences Meeting and Exhibit, January 2007, Reno, Nevada.
Anderson, J., Bailie, S., Ng, W., “Acoustic Monitoring of Axial Compressor Rotor Blade Vibrations, AIAA/CEAS Aeroacoustics Conference”, AIAA-2006-2577, May 2006, Cambridge, Massachusetts.
Anderson, J., Ng, W., Burdisso, R., Truax, P., Miller, D., Niestroy, M., “A Non-intrusive Sensing Technique to infer Optimal Flow Control in Serpentine Inlets”, 44th AIAA Aerospace Sciences Meeting, AIAA-2006-0013, January 2006, Reno Nevada.
Fleming, J., Olcmen, S., Li, S., Burdisso, R., Ng, W., “Sensing for Active Flow Control in Advanced Propulsion-Airframe Integration Systems”, 42nd AIAA Aerospace Sciences Meeting and Exhibit, AIAA-2004-1200, January 2004, Reno, Nevada.
Ng, W., Burdisso, R., “Active Acoustic and Flow Control for Aeropropulsion”, 39th AIAA Aerospace Sciences Meeting & Exhibit, AIAA-2001-0220, January 8-11, 2001, Reno, Nevada.
Aircraft Propulsion/Airframe Integration
Brown, K., Fleming, J., Langford, M., Ng, W., Schwartz, K., and Combs, C., “Development of a Ducted Propulsor for BLI Electric Regional Aircraft – Part I: Aerodynamic Design and Analysis”, AIAA 2019-3853, AIAA Propulsion and Energy 2019 Forum, August 19-22, Indianapolis, IN. Best Paper Award.
Harrison, N., Anderson, J., Fleming, J., Ng, W., “Experimental Investigation of Active Flow Control of a Boundary Layer Ingesting Serpentine Inlet Diffuser”, 45th AIAA Aerospace Sciences Meeting and Exhibit, January 2007, Reno, Nevada.
Harrison, N., Anderson, J., Fleming, J., Ng, W., “Computational Investigation of Active Flow Control of a Boundary Layer Ingesting Serpentine Diffuser”, 44th AIAA Aerospace Sciences Meeting and Exhibit, AIAA 2006-874, January 2006, Reno, Nevada.
Scribben, A., Ng, W., Burdisso, R., Effectiveness of a Serpentine Inlet Duct Flow Control Technique at Design and off-Design Simulated Flight Conditions, J Turbomach, Vol. 128, Issue 2, pp. 332-339, April 2006.
Anderson, J., Burdisso, R., Ng, W., Rabe, A., Ölçmen, S., “A Facility For Active Flow Control Research In Serpentine Inlets”, 40th Aerospace Science Meeting and Exhibit, AIAA-2002-0510, January 14-17, 2002, Reno, Nevada.
Anderson, J., Burdisso, R., Ng, W., “An Active Flow Distortion Control System for Serpentine Inlets, International Mechanical Engineering Congress and Exposition”, IMECE2002-NCA-33049, November 17-22, 2002, New Orleans, Louisiana. Best Paper Award.
Gas Turbine Exhaust Flow
Langford, M., Siorek, M., Guillot, S., Ng, W., “Predicting the Performance of Turbine Exhaust Diffuser-Collector Systems Across the Operating Range: Comparison of Lattice-Boltzmann Method Simulations with Experiments”, ASME. J. Eng. Gas Turbines Power, September 2024; 146(9): 091009.
Langford, M., Siorek, M., Guillot, S., Ng, W., “Predicting the Performance of Turbine Exhaust Diffuser-Collector Systems Across the Operating Range: Comparison of Lattice-Boltzmann Method Simulations with Experiments”, GT2023-100867, ASME Turbo Expo 2023, Boston, MA, June 26-30, 2023.
Brown, K., Guillot, S., Ng, W., Iksang, L., Dongil, K., Hong, G., “Experimental Investigation of Gas Turbine Axial Diffuser Performance: Part I — Parametric Analysis of Influential Variables”, GT2020-15299, ASME Turbo Expo 2020, Sep 21-25, Virtual Event.
Siorek, M., Guillot, S., Xue, S., Ng, W., Swirl Angle and Strut Angle Stagger Sensitivity on the Performance of a Gas Turbine Exhaust with a Collector, J. Eng. Gas Turbines Power. Jul 2018, 140(7): 072602 (14 pages).
Guillot, S., Ng, W., Hamm, H.D., Stang, U., Lowe, K.T. The Experimental Studies of Improving the Aerodynamic Performance of a Turbine Exhaust System, J. Eng. Gas Turbines Power 137(1), 012601 (Aug 05, 2014)
Turbomachinery
McGlumphy, J., Ng, W.F., Wellborn, S. and Kempf, S., 3D Numerical Investigation of Tandem Airfoils for a Core Compressor, ASME J of Turbomachinery, Vol.132, No.3, 031009 (9 pages), Jul 2010.
Prakash, C., Cherry, D.G., Shin, H.W., Machnaim, J., Dailey, L., Beacock, R., Halstead, D., Wadia, A.R., Guillot, S., Ng, W., “Effect of Loading Level and Distribution on LPT Losses,” GT2008-50052 for the ASME Turbo Expo, June 2008, Berlin, Germany.
Halasz, C., Arntz, D., Burdisso, R., and Ng, W., “Fan Flow Control for Noise Reduction Part 1: Advanced Trailing Edge Blowing Concepts,” AIAA-2005-3025, AIAA/CEAS Aeroacoustics Conference, 2005 May, Monterey, CA.
Hill, H., Ng, W., Vlachos, P., Guillot, S., and Car., “2D Parametric Study Using CFD of a Circulation Control Inlet Guide Vane”, GT2007-28058 for the ASME Turbo Expo, May 2007, Montreal, Canada.
Langford, M., Breeze-Stringfellow, A., Guillot, S., Solomon, W., Ng, W., and Estevadeordal, J., Experimental Investigation of the Effects of a Moving Shock Wave on Compressor Stator Flow, ASME J of Turbomachinery, Vol. 129, pp. 127-135, Jan 2007.
Langford, M., Minton, C., Ng, W., Estevadeordal, J., and Burdisso, R., “Fan Flow Control for Noise Reduction Part 2: Investigation of Wake-Filling Techniques”, AIAA-2005-3026, AIAA/CEAS Aeroacoustics Conference, 2005 May, Monterey, CA.
Langford, M., Minton, C., Ng, W., Burdisso, R., and Halasz, C., “Fan Flow Control for Noise Reduction Part 3: Rig Testing of Optimal Design”, AIAA-2005-3027, AIAA/CEAS Aeroacoustics Conference, 2005 May, Monterey, CA.
Bailie, T., Carter C., Feng, J., Ng, W., Burdisso, R., Copenhaver, W., “Wake-Filling and Reduction of Rotor HCF Using Stator Trailing Edge Blowing”, 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, July 17-19, 2000, Huntsville, Alabama.
Leitch, T.A., Saunders, G.A., and Ng, W.F., Reduction of Unsteady Stator-Rotor Interaction Using Trailing Edge Blowing, Journal of Sound and Vibration, Vol. 235, No. 2, 2000, pp. 235-245.
Unmanned Aircraft
Fleming, J., Goossen, E., Langford, M., Tweedie, S., Ng, W., “Development of an Air Data System for Ducted Fan Unmanned Aircraft”, 50th AIAA Aerospace Sciences Meeting, Nashville, TN, January 2012.
Fleming, J., Tweedie, S., Langford, M., and Ng, W., “Low Speed Wind Tunnel Testing of the Honeywell T-HawkTM Micro-Air Vehicle”, American Helicopter Society/AIAA International Powered Lift Conference 2010, Philadelphia, PA, October 5-7, 2010.
Graf, W., Fleming, J., and Ng, W., “Improving Ducted Fan UAV Aerodynamics in Forward Flight”, AIAA-2008-0430, 46th AIAA Aerospace Sciences Meeting, Reno, NV, 2008.
Fleming, J., Jones, T., Lusardi, J., Gelhausen, P., Enns, D., “Improved Control of Ducted Fan VTOL UAVs in Crosswind Turbulence”, AHS International 4th Decennial Specialists’ Conference on Aeromechanics, San Francisco, CA, January 2004.
Fleming, J., Ng, W., and Ghamaty, S., “Thermoelectric-Based Power System for UAV/MAV Applications”, AIAA Paper 2002-3412, 1st AIAA Unmanned Systems, Technologies, and Operations Conference, Portsmouth, VA, May 2002. Best Paper Award.