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James Gregory

  • Associate Professor, Mechanical & Aerospace Engr
  • 201 W 19th Ave
    E442 Scott Lab
    Columbus, OH 43210
  • 614-292-5024

About

Dr. James W. Gregory is an associate professor in the Department of Mechanical and Aerospace Engineering, and Associate Director for UAS of the Aerospace Research Center at The Ohio State University. He received his doctorate and masters degrees in Aeronautics and Astronautics from Purdue University in 2005 and 2002, respectively. He received his Bachelor of Aerospace Engineering from Georgia Tech in 1999, graduating with highest honors. Dr. Gregory’s research interests lie in the field of unsteady, separated wakes – with specific interests in rotorcraft aeromechanics, bluff body wake control, and development of advanced measurement techniques. His work focuses on understanding and controlling compressible dynamic stall of rotorcraft blades; flow control of wakes, targeting three-dimensional wake structures and their instabilities; and development of fast-response pressure-sensitive paint as a diagnostic for unsteady flows. He is also active in UAS research, including flight testing of vehicle performance and systems integration studies. He serves as PI for Ohio State as a core member of the ASSURE FAA Center of Excellence on Integrating UAS in the NAS. Funding for his work includes grants from ARO (Young Investigator Award), ARL, AFOSR, AFRL, FAA, NASA, Sikorsky, and Honda R&D. His research has resulted in the Thomas Hawksley Gold Medal, a best paper award presented by the Institution of Mechanical Engineers; and the Alfred Gessow Award for co-author of the Best Paper at the 68th American Helicopter Society Forum. Dr. Gregory’s teaching innovations have led to the McCarthy Engineering Teaching Award, the Department of Aerospace Engineering Outstanding Professor Award, and the SAE Ralph Teetor Award. His work experience includes stints at the US Air Force Research Laboratory Air Vehicles Directorate, Delta Air Lines, NASA Glenn Research Center, Tohoku University in Japan, and as a Fulbright Scholar at the Technion in Israel. He has also served as a policy fellow at the National Academy of Engineering through the Christine Mirzayan Science & Technology Policy Fellowship. Before arriving at Ohio State, he completed a postdoctoral fellowship at the U.S. Air Force Academy, funded through the National Research Council Research Associateship Program. He holds a private pilot license for single-engine land-based aircraft.

Honors

  • 2016

    Associate Fellow. .

  • 2014-2015

    Fulbright Scholar. .

  • 2011-2014

    ARO Young Investigator Award. .

  • 2013

    NASA Group Achievement Award - Advanced Experimental Measurements / Kiowa Warrior Team. .

  • 2013

    Lumley Research Award. .

  • 2013

    Outstanding Professor Award. .

  • 2012

    Ralph R. Teetor Educational Award. .

  • 2012

    Indo-US Frontiers of Engineering Program. .

  • 2012

    Ground Test Technical Committee Outstanding Paper Award. .

  • 2012

    Alfred Gessow Award for Best Paper at the AHS Forum 68. .

  • 2011

    McCarthy Engineering Teaching Award. .

  • 2010

    Ground Test Technical Committee Outstanding Paper Award. .

  • 2010

    Outstanding Professor Award. .

  • 2009

    Distinguished Undergraduate Research Mentor Award. .

  • 2008

    Kenneth Harris James Prize (Best Paper Award). .

  • 2008

    Frontiers of Engineering Program. .

  • 2008

    Thomas Hawksley Gold Medal (Best Paper Award). .

  • 2006

    Engineering Student of the Year. .

  • 2006

    Best Paper by a Young Presenter Award. .

  • 2005

    Orville and Wilbur Wright Graduate Award. .

  • 2005

    Sigma Xi Graduate Student Poster Competition- First Place in Engineering. Purdue University.

  • 2004

    First Place Graduate Student. .

  • 2003

    Region III Student Paper Competition, First Place. .

  • 2002

    Outstanding Graduate Student Award. .

  • 1996

    Sigma Gamma Tau. .

Books

  • Gregory, JW; Liu, T. "Introduction to Flight Testing of Light Aircraft and UAVs."
  • Journal Articles

    2017

    2016

    2015

    2014

    2013

    2012

    2011

    2009

    2008

    2007

    2006

    2005

    2002

    1999

    Presentations

    • "Characterization of Miniature Fluidic Oscillator Flowfields using Porous Pressure Sensitive Paint." 2001,
    • "Time-Resolved Measurements with Pressure and Temperature-Sensitive Paints." 2004,
    • "Jet Interaction Studies in a Fluidic Oscillator." 2005,
    • "Pressure-Sensitive Paint for Unsteady Aerodynamic Measurements." 2005,
    • "Pressure-sensitive paint as a distributed optical microphone array.."
    • "Development of Pressure-Sensitive Paint for Unsteady Measurements." 2007,
    • "Bluff Body Wake Control using Spatially Distributed Plasma Forcing." 2009,
    • "Recent Developments in Unsteady Pressure-Sensitive Paint Methods." 2009,
    • "Unsteady Pressure Measurements with Porous Pressure-Sensitive Paint." 2010,
    • "A Temperature Corrected Dual-Luminophore Pressure-Sensitive Paint System for Unsteady Pressure Measurements." 2011,
    • "Measurement of transient acoustic fields using a single-shot pressure-sensitive paint system.."
    • "Effects of Spanwise-Modulated Blowing on the Cylinder." 2011,
    • "Visualization of Internal Jet Mixing in a Fluidic Oscillator." 2004,
    • "Unsteady Measurements with Pressure-Sensitive Paint: Recent Work at Purdue University." 2004,
    • "Development of Pressure-Sensitive Paint for Unsteady Measurements." 2006,
    • "Development of Fluidic Oscillators for Flow Control Applications." 2006,
    • "Gaseous Effects on Plasma Formation and Force Production of a Single DBD Plasma Actuator." 2007,
    • "Plasma Actuators for Aerodynamic Flow Control." 2008,
    • "Circular Cylinder Wake Control using Spatially Distributed Plasma Forcing." 2008,
    • "Development of Single-Shot Lifetime PSP Measurement Technique for Rotorcraft." 2010,
    • "Porous Pressure Sensitive Paint for Unsteady Flow Fields." 2000,
    • "Unsteady Pressure Measurements in Turbomachinery Using Porous Pressure Sensitive Paint." 2002,
    • "Development of Fluidic Oscillators for Flow Control Applications." 2005,
    • "Assessment of Noise Reduction Technologies for Civilian Aircraft." 2006,
    • "Investigation of Flow-Induced Vibrations on Side-View Mirrors." 2009,
    • "Effect of the Flow on Vibration Characteristics of Side-View Mirrors." 2010,
    • "Porous Pressure-Sensitive Paint for Measurement of Unsteady Pressures in Turbomachinery." 2003,
    • "Nanorod Material Development for Fast Response Pressure-Sensitive Paint Applications." 2004,
    • "Modulated High Frequency Fluidic Jets For Flow Control." 2005,
    • "Drag Reduction on a Circular Cylinder using Spatially Distributed Forcing." 2007,
    • "Unsteady Surface Pressure Measurements On A Hemispherical Dome With Porous Pressure-Sensitive Paint." 2009,
    • "Visualization of Pulsed Vortex Generator Jets with Porous Pressure-Sensitive Paint." 2009,
    • "Development of a Two Layer Dual-luminophore Pressure Sensitive Paint and its Applications in Unsteady Flow Field Measurements." 2010,
    • "Comparison of Unsteady Pressure-Sensitive Paint Measurement Techniques." 2010,
    • "Jet Interactions in a Feedback-Free Fluidic Oscillator in the Transition Region." 2013,
    • "Experimental Study of Vortex Dynamics during Blade-Vortex Interaction." 2013,
    • "Unsteady Structure of Three-Dimensional Stall Cells." 2013,
    • "Unsteady Pressure Measurements on Rotor Blades using Porous Pressure-Sensitive Paint." 2014,
    • "Application of Fast Pressure-Sensitive Paint to an Oscillating Wind Turbine Airfoil." 2015,
    • "Active Flow Control at Ohio State: From Laboratory Basic Research to Flight Application." 2016,
    • "Fast-Response Pressure-Sensitive Paint." 2016,
    • "The Influence of Spanwise Segmented Plasma Actuator Forcing on a Circular Cylinder Wake and the Selection of Optimum Wavelength." 2013,
    • "UAS at The Ohio State University." 2014,
    • "Internal Flow Physics of a Fluidic Oscillator in the Transition Regime." 2014,
    • "Fast-Response Pressure-Sensitive Paint." 2015,
    • "Scaling Considerations for Fluidic Oscillator Flow Control on the Square-Back Ahmed Vehicle Model." 2015,
    • "Iterative Blind Deconvolution Algorithm for Deblurring Single PSP Image of Rotating Surfaces." 2015,
    • "Drag Reduction on the Square Back Ahmed Model Using Fluidic Oscillators." 2014,
    • "Unsteady Pressure Measurements on Rotor Blades using Porous Pressure-Sensitive Paint." 2015,
    • "UAS Research at The Ohio State University." 2015,
    • "Targeting of three-dimensional wake instabilities for bluff body flow control." 2013,
    • "A Comparative Study of Spatially Modulated Forcing of Cylinder Wake with Segmented Plasma Actuators of Different Wavelengths." 2012,
    • "Unsteady Pressure Measurements on Rotor Blades in Forward Flight using Porous Pressure-Sensitive Paint." 2014,
    • "Time-Resolved Visualization of Gortler Vortices in a Pulsed Convex Wall Jet using Fast Pressure-Sensitive Paint." 2015,
    • "Unsteady Pressure Measurements with Porous Pressure-Sensitive Paint." 2009,
    • "Testing Capabilities for Transonic Flow Control." 2010,
    • "Pressure-Sensitive Paint for Unsteady Flow Measurements." 2003,
    • "Unsteady Aerodynamic Measurements with Pressure-Sensitive Paint." 2005,

    Papers in Proceedings

    2017

    2016

    • Gregory, JW; McCrink, H* Accuracy of Smartphone-Based Barometry for Altitude Determination in Aircraft Flight Testing. in 54th AIAA Aerospace Sciences Meeting. http://dx.doi.org/10.2514/6.2016-0270, (1 2016). AIAA 2016-0270 - AIAA 2016-0270.
    • "Compressible dynamic stall alleviation through high momentum steady blowing." (1 2016).
    • Naigle, SC*; Frankhouser, MW*; Gregory, JW; Bons, JP "Effects of Time-Varying Flow Velocity on Steady Blowing Flow Control for a Pitching Airfoil." in 72nd AHS Annual Forum. (5 2016). . - ..
    • Metka, M*; Gregory, JW; McKillen, J "Investigation of Fluidic Oscillator Flow Control for Ground Vehicles." in Second International Conference in Numerical and Experimental Aerodynamics of Road Vehicles and Trains (Aerovehicles 2). (6 2016). . - ..
    • Naigle, SC*; Frankhouser, MW*; Williams, K*; Gregory, JW; Bons, JP "Experimental Modeling of Compressible Dynamic Stall in Unsteady Flow through Interpolation of Phase-Matched Conditions in Steady Flow." in AHS Specialists' Conference on Aeromechanics Design for Vertical Lift. (1 2016). . - ..
    • Pandey, A*; Gregory, JW Comparison of Blur Estimation Techniques for PSP Images of Rotating Surfaces. in 54th AIAA Aerospace Sciences Meeting. http://dx.doi.org/10.2514/6.2016-2019, (1 2016). AIAA 2016-2019 - AIAA 2016-2019.

    2015

    • Pandey, A*; Gregory, JW Dynamic Response Characteristics of Polymer/Ceramic Pressure-Sensitive Paint. in 53rd AIAA Aerospace Sciences Meeting. http://dx.doi.org/10.2514/6.2015-0021, (1 2015). AIAA 2015-0021 - AIAA 2015-0021.
    • Disotell, Kevin J*; Gregory, JW Time-Resolved Measurements of Cellular Separation on a Stalling Airfoil. in 53rd AIAA Aerospace Sciences Meeting. http://dx.doi.org/10.2514/6.2015-1501, (1 2015). AIAA 2015-1501 - AIAA 2015-1501.
    • Disotell, Kevin J*; Nikoueeyan, Pourya; Naughton, Jonathan; Gregory, James W "Single-Shot Pressure-Sensitive Paint Measurements of Static and Dynamic Stall on a Wind Turbine Airfoil." in 71st AHS Annual Forum. (5 2015). Paper No. 38 - Paper No. 38.
    • McCrink, M*; Gregory, JW Blade Element Momentum Modeling of Low-Re Small UAS Electric Propulsion Systems. in AIAA Aviation Forum. http://dx.doi.org/10.2514/6.2015-3296, (6 2015). AIAA 2015-3296 - AIAA 2015-3296.
    • Frankhouser, M*; Gregory, JW Nanosecond Dielectric Barrier Discharge Plasma Actuator Flow Control of Compressible Dynamic Stall. in AIAA Aviation Forum. http://dx.doi.org/10.2514/6.2015-2341, (6 2015). AIAA 2015-2341 - AIAA 2015-2341.
    • Pandey, A*; Gregory, JW "Step Response of Polymer/Ceramic Pressure Sensitive Paint." in 10th Pacific Symposium on Flow Visualization and Image Processing. (6 2015). . - ..
    • Hird, K*; Frankhouser, M*; Naigle, S*; Bons, JP; Gregory, JW "Study of an SSC-A09 Airfoil in Compressible Dynamic Stall with Freestream Mach Oscillations." in 71st AHS Annual Forum. (5 2015). Paper No. 311 - Paper No. 311.
    • Naigle, S*; Frankhouser, M*; Hird, K*; Bons, JP; Gregory, JW "Blowing Flow Control of Dynamic Stall under Coupled Pitch and Freestream Oscillations." in 71st AHS Annual Forum. (5 2015). Paper No. 125 - Paper No. 125.

    2014

    2013

    • Gordeyev, S; De Lucca, N; Jumper, E; Hird, K*; Juliano, TJ*; Gregory, JW; Thordahl, J; Wittich, DJ "The Comparison of Unsteady Pressure Field over Flat- and Conformal-Window Turrets using Pressure Sensitive Paint." (6 2013). AIAA 2013-3137 - AIAA 2013-3137.
    • Hird, K*; Juliano, TJ*; Gregory, JW; De Lucca, N; Gordeyev, S; Jumper, E; Thordahl, J; Wittich, DJ "Study of Unsteady Surface Pressure on a Turret via Pressure-Sensitive Paint." (6 2013). AIAA 2013-3135 - AIAA 2013-3135.
    • McMullen, RM*; Huynh, DP*; Gregory, JW; Crafton, J "Dynamic Calibrations for Fast-Response Porous Polymer/Ceramic Pressure-Sensitive Paint." (6 2013). AIAA 2013-3123 - AIAA 2013-3123.
    • Tomac, MN*; Gregory, JW "Jet Interactions in a Feedback-Free Fluidic Oscillator at Low Flow Rate." (6 2013). AIAA 2013-2478 - AIAA 2013-2478.
    • Gregory, JW; Tomac, MN* "A Review of Fluidic Oscillator Development and Application for Flow Control." (6 2013). AIAA 2013-2474 - AIAA 2013-2474.
    • Yugulis, K*; Gregory, JW; Samimy, M "Control of High Subsonic Cavity Flow Using Plasma Actuators." (1 2013). AIAA 2013-0679 - AIAA 2013-0679.
    • De Lucca, N; Gordeyev, S; Jumper, E; Hird, K*; Juliano, TJ*; Gregory, JW; Thordahl, J; Wittich, DJ "The Estimation of the Unsteady Aerodynamic Force Applied to a Turret in Flight." (6 2013). AIAA 2013-3136 - AIAA 2013-3136.
    • Bhattacharya, S*; Gregory, JW "The Optimum Wavelength of Spanwise Segmented Plasma Actuator Forcing of a Circular Cylinder Wake." (1 2013). AIAA 2013-1011 - AIAA 2013-1011.
    • Gregory, JW; Disotell, KJ*; Peng, D*; Juliano, TJ*; Crafton, J; Komerath, NM "Deconvolution-Based Algorithms for Deblurring PSP Images of Rotating Surfaces." (1 2013). AIAA 2013-0484 - AIAA 2013-0484.

    2012

    • Wong, OD; Watkins, AN; Goodman, KZ; Crafton, J; Forlines, A; Goss, L; Gregory, JW; Juliano, TJ* "Blade Tip Pressure Measurements Using Pressure Sensitive Paint." (5 2012). Paper Number 233 - Paper Number 233.
    • Gompertz, KA*; Jensen, CD*; Gregory, JW; Bons, JP "Compressible Dynamic Stall Mechanisms Due to Airfoil Pitching and Freestream Mach Oscillations." (5 2012). Paper Number 98 - Paper Number 98.
    • Tomac, MN* and Gregory, JW "Frequency Studies and Scaling Effects of Jet Interaction in a Feedback-Free Fluidic Oscillator." (1 2012). AIAA 2012-1248 - AIAA 2012-1248.
    • Bhattacharya, S*; Gregory, JW "Study of the Wake of a Circular Cylinder under Spatially and Temporally Modulated Plasma Actuation." (6 2012). AIAA 2012-2957 - AIAA 2012-2957.
    • Peng, D*, Jensen, CD*, Juliano, TJ*, Gregory, JW, Crafton, JW, Palluconi, S "Temperature-Compensated Fast Pressure-Sensitive Paint." (1 2012). AIAA 2012-1186 - AIAA 2012-1186.
    • Gregory, JW and Jensen, CD* "Smartphone-Based Data Acquisition for an Undergraduate Course on Aircraft Flight Testing." (1 2012). AIAA 2012-0883 - AIAA 2012-0883.
    • Gompertz, K*, Bons, JP, Gregory JW "Passive Trip Evaluation Using Infrared Thermography." (1 2012). AIAA 2012-0578 - AIAA 2012-0578.
    • Jensen, CD*; Gompertz, KA*; Peng, D*; Gregory, JW; Bons, JP "Measurement Techniques for Shock Movement Captureon a NACA 0012 in Unsteady Compressible Flow." (6 2012). AIAA 2012-3111 - AIAA 2012-3111.
    • Long, SR* and Gregory, JW "A Temperature Corrected Dual-Luminophore Pressure-Sensitive Paint System for Unsteady Pressure Measurements." (1 2012). AIAA 2012-0131 - AIAA 2012-0131.
    • Bhattacharya, S* and Gregory, JW "Effect of Three-Dimensional Plasma Actuation on the Wake of a Circular Cylinder." (1 2012). AIAA 2012-0907 - AIAA 2012-0907.
    • Watkins, AN; Leighty, BD; Lipford, WK; Wong, OD; Gooman, KZ; Crafton, J; Forlines, A; Goss, LP; Gregory, JW; Juliano, TJ* "Deployment of a Pressure Sensitive Paint System for Measuring Global Surface Pressures on Rotorcraft in Simulated Forward Flight." (6 2012). AIAA 2012-2756 - AIAA 2012-2756.
    • Disotell, KJ*; Juliano, TJ*; Peng, D*; Gregory, JW; Crafton, J; Komerath, NM "Unsteady Pressure-Sensitive Paint Measurements on an Articulated Model Helicopter in Forward Flight." (6 2012). AIAA 2012-2757 - AIAA 2012-2757.

    2011

    • Liu, T, Montefort, J, Gregory, J, Palluconi, S, Crafton, J, and Fonov, S "Wing Deformation Measurements from Pressure Sensitive Paint ImagesUsing Videogrammetry." in Proceedings of the 41st AIAA Fluid Dynamics Conference and Exhibit. (1 2011). AIAA 2011-3725 - AIAA 2011-3725.
    • Jensen, CD*, Gompertz, KA*, Peng, D*, Juliano, TJ*, Kumar, P*, Gregory, JW, Bons, JP "Unsteady Compressible Flow on a NACA 0021 Airfoil." in Proceedings of the 49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. (1 2011). AIAA 2011-670 - AIAA 2011-670.
    • Juliano, TJ*, Peng, D*, Jensen, C*, Gregory, JW, Liu, T, Montefort, J, Palluconi, S, Crafton, J, and Fonov, S "PSP Measurements on an Oscillating NACA 0012 Airfoil in Compressible Flow." in Proceedings of the 41st AIAA Fluid Dynamics Conference and Exhibit. (1 2011). AIAA 2011-3728 - AIAA 2011-3728.

    2010

    • Gompertz, K*, Kumar, P*, Jensen, C*, Peng, D*, Gregory, JW, and Bons, JP "Modification of a Transonic Blowdown Wind Tunnel to Produce Oscillating Freestream Mach Number." in Proceedings of the 48th AIAA Aerospace Sciences Meeting. (1 2010). AIAA 2010-1484 - AIAA 2010-1484.
    • Peng, D*, Gregory, JW, Crafton, JW, and Fonov, S "Development of a Two Layer Dual-luminophore Pressure Sensitive Paint and its Applications in Unsteady Flow Field Measurements." in Proceedings of the 27th AIAA Aerodynamic Measurement and Ground testing Conference. (1 2010). AIAA 2010-4918 - AIAA 2010-4918.
    • Tomac, M*, Yugulis, K*, Gregory, JW, Loftus, J, and Ferrito, T "Investigation of Side-view Mirror Flow-Induced Vibration Phenomena." in Proceedings of the ASME Fluids Engineering Division Summer Meeting and 7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, and Flow-Induced Vibration & Noise. (1 2010). FEDSM-ICNMM2010 - FEDSM-ICNMM2010.
    • Fang, S*, Long, SR*, Disotell, KJ,* Gregory, JW, Semmelmayer, FC, and Guyton, RW "Comparison of Unsteady Pressure-Sensitive Paint Measurement Techniques." in Proceedings of the 27th AIAA Aerodynamic Measurement and Ground Testing Conference. (1 2010). AIAA 2010-4919 - AIAA 2010-4919.

    2009

    • Fang, S*, Disotell, K*, Gregory, JW, Semmelmayer, FC, and Guyton, RW "Unsteady Surface Pressure Measurements on a Hemispherical Dome With Porous Pressure-Sensitive Paint." in Proceedings of the 10th International Conference on Fluid Control, Measurements, and Visualization, FLUCOME 2009. (1 2009). Paper 266 - Paper 266.
    • Gregory, JW, Kumar, P*, Peng, D*, Fonov, S, Crafton, JW, and Liu, T "Integrated Optical Measurement Techniques for Investigation of Fluid-Structure Interactions." in Proceedings of the 39th AIAA Fluid Dynamics Conference. (1 2009). AIAA 2009-4044 - AIAA 2009-4044.

    2008

    • Huang, C, Gregory, JW, and Sullivan, JP "Pressure and Temperature Measurements of Supersonic Microjet Impingement." in Proceedings of the XXII International Conference of Theoretical and Applied Mechanics. (1 2008). Paper 11923 - Paper 11923.
    • Enloe, CL, McLaughlin, TE, and Gregory, JW "Surface Potential and Electric Field Structure in the Aerodynamic Plasma Actuator." in Proceedings of the 46th AIAA Aerospace Sciences Meeting. (1 2008). AIAA 2008-1103 - AIAA 2008-1103.
    • Gregory, JW, Porter, CO and McLaughlin, TE "Circular Cylinder Wake Control Using Spatially Distributed Plasma Forcing." in Proceedings of the 4th AIAA Flow Control Conference. (1 2008). AIAA 2008-4198 - AIAA 2008-4198.

    2007

    • Gregory, JW, Enloe, CL, Font, GI, and McLaughlin, TE "Force Production Mechanisms of a Dielectric-Barrier Discharge Plasma Actuator." in Proceedings of the 45th AIAA Aerospace Sciences Meeting. (1 2007). AIAA 2007-0185 - AIAA 2007-0185.
    • Gregory, JW, Ruotolo, JC, Byerley, AR, and McLaughlin, TE "Switching Behavior of a Plasma-Fluidic Actuator." in Proceedings of the 45th AIAA Aerospace Sciences Meeting. (1 2007). AIAA 2007-0785 - AIAA 2007-0785.

    2006

    • Baughn, JW, Byerley, A, and Gregory, JW "An Optical Method for Measuring Low Wall Shear Stresses Using Thermal Tufts." in Proceedings of the 44th AIAA Aerospace Sciences Meeting. (1 2006). AIAA 2006-0647 - AIAA 2006-0647.
    • Huang, C, Gregory, JW, Sullivan, JP, Nagai, H, and Asai, K "Molecular Sensors in Microturbine Measurement." in Proceedings of the IMECE2006, ASME International Mechanical Engineering Congress and Exposition. (1 2006). IMECE2006-13814 - IMECE2006-13814.

    2005

    • Raghu, S, Gregory, JW, and Sullivan, JP "Modulated High Frequency Fluidic Jets for Flow Control." in Proceedings of the International Conference on Jets, Wakes, and Separated Flows. (1 2005).
    • Gregory, JW and Peterson, SD "Flow Visualization with Laser-Induced Thermal Tufts." in Proceedings of the 43rd AIAA Aerospace Sciences Meeting. (1 2005). AIAA 2005-0699 - AIAA 2005-0699.
    • Gregory, JW, Gnanamanickam, EP, Sullivan, JP, and Raghu, S "Variable-Frequency Fluidic Oscillator Driven by Piezoelectric Devices." in Proceedings of the 43rd AIAA Aerospace Sciences Meeting. (1 2005). AIAA 2005-0108 - AIAA 2005-0108.

    2004

    • Gregory, JW, Sullivan, JP, Raman, G, and Raghu, S "Characterization of a Micro Fluidic Oscillator for Flow Control." in Proceedings of the 2nd AIAA Flow Control Conference. (1 2004). AIAA 2004-2692 - AIAA 2004-2692.
    • Gregory, JW, and Sullivan, JP "Effect of Quenching Kinetics on the Unsteady Response of Pressure-Sensitive Paint." in Proceedings of the 42nd AIAA Aerospace Sciences Meeting. (1 2004). AIAA 2004-0879 - AIAA 2004-0879.
    • Gregory, JW "Porous Pressure-Sensitive Paint for Measurement of Unsteady Pressures in Turbomachinery." in Proceedings of the 42nd AIAA Aerospace Sciences Meeting. (1 2004). AIAA 2004-0294 - AIAA 2004-0294.
    • Gregory, JW, Sullivan, JP, and Raghu, S "Visualization of Internal Jet Mixing in a Fluidic Oscillator." in Proceedings of the 11th International Symposium on Flow Visualization at University of Notre Dame. (1 2004). Paper 147 - Paper 147.

    2003

    • Gregory, JW, and Sullivan, JP "Characterization of Hartmann Tube Flow with Porous Pressure-Sensitive Paint." in Proceedings of the 33rd AIAA Fluid Dynamics Conference and Exhibit. (1 2003). AIAA 2003-3713 - AIAA 2003-3713.

    2002

    • Huang, CY, Sakaue, H, Gregory, JW, Sullivan, JP "Molecular Sensors for MEMS." in Proceedings of the 40th AIAA Aerospace Sciences Meeting. (1 2002). AIAA 2002-0256 - AIAA 2002-0256.
    • Gregory, JW, Sakaue, H, and Sullivan, JP "Fluidic Oscillator as a Dynamic Calibration Tool." in Proceedings of the 22nd AIAA Aerodynamic Measurement Technology and Ground Testing Conference. (1 2002). AIAA 2002-2701 - AIAA 2002-2701.
    • Sullivan, JP, Gregory, JW, Huang, CY, Sakaue, H "Flow Visualization of Applications of Luminescent Paints." in Proceedings of the 10th International Symposium on Flow Visualization. (8 2002). F0452 - F0452.
    • Gregory, JW, Sakaue, H, Sullivan, JP "Unsteady Pressure Measurements in Turbomachinery Using Porous Pressure-Sensitive Paint." in Proceedings of the 40th AIAA Aerospace Sciences Meeting. (1 2002). AIAA 2002-0084 - AIAA 2002-0084.

    2001

    • Sakaue, H, Gregory, JW, Sullivan, JP, Raghu, S "Porous Pressure-Sensitive Paint for Unsteady Flow Fields." in Proceedings of the 39th AIAA Aerospace Sciences Meeting. (1 2001). AIAA 2001-0554 - AIAA 2001-0554.

    1997

    • Caradonna, F; Henley, E; Silva, M; Huang, S; Komerath, NM; Reddy, U; Mahalingam, R; Funk, R; Wong, O; Ames, R; Darden, L; Villareal, L; Gregory, J "An Experimental Study of a Rotor in Axial Flight." in AHS Technical Specialists' Meeting on Rotorcraft Acoustics and Aerodynamics. (10 1997). . - ..

    Unknown

    • Gregory, JW; Juliano, TJ*; Disotell, KJ*; Peng, D*; Crafton, J; Komerath, NM "Assessing the Limits of Deconvolution-Based Algorithms for Deblurring PSP Images of Rotating Surfaces." in 51st AIAA Aerospace Sciences Meeting.
    • Bhattacharya, S*; Gregory, JW "The Development of the Intermediate and Far Wake of a Circular Cylinder under the Action of Spatially and Temporally Modulated Plasma Forcing." in 51st AIAA Aerospace Sciences Meeting.
    • Yugulis, K*; Gregory, JW; Samimy, M "Control of High Subsonic Cavity Using Plasma Actuators." in 51st AIAA Aerospace Sciences Meeting.

    Patents

    • Metka, ML, McKillen, J, and Gregory, JW. "Vehicle Aerodynamics Control System and Methods of Use and Manufacture Thereof."