Ari Glezer - Aerodynamic Flow Control
Ph.D, Aeronautics, California Institute of Technology
Ari Glezer is a Professor of Fluid Mechanics in the George W. Woodruff School of Mechanical Engineering (with a joint appointment at the Daniel Guggenheim School of Aerospace Engineering) at Georgia Institute of Technology where he moved in 1992 from the Aerospace and Mechanical Engineering Department at the University of Arizona. Before he became a member of the faculty at the University of Arizona in 1984, Professor Glezer was a Research Fellow in the Faculty of Engineering at Tel Aviv University, worked as a Senior Research Engineer at the Aircraft Division of Northrop Corporation, and was a Post-Doctoral Fellow in Aeronautics at the California Institute of Technology. Professor Glezer received his B.S. in Mechanical Engineering from Tel Aviv University in 1974, and his M.S. and Ph.D. in Aeronautics from the California Institute of Technology in 1975 and 1981, respectively.
Professor Glezer is a Fellow of the American Physical Society and of the American Society of Mechanical Engineers. Professor Glezer’s research has focused on the fundamental mechanisms and physics of active flow control of external and internal shear flows, development of novel flow control actuation technologies, and the transitioning these technologies to a number of practical applications. Specifically, his research work has encompassed active and passive control of aerodynamic lift and drag, mixing processes, thrust vectoring, mixed convection-diffusion flows, thermal management, and more recently energy extraction from buoyancy-induced columnar vortices. Professor Glezer has developed a methodology for controlling large-scale aerodynamic flows and aerodynamic performance by fluidic modification of the apparent aerodynamic shape of aerosurfaces (or virtual aerosurface shaping) using one of his best-known contributions, namely the development and application of synthetic jets. He has shown that when embedded in an aerodynamic surface these jets displace the streamlines near the surface to create an apparent modification of the flow boundary and enable significant changes in aerodynamic performance. This approach which requires low-level actuation with minimal impact on the system power budget and weight has been successfully applied by Professor Glezer to improve aerodynamic performance of attached and separated flows on external and internal aerosurfaces. An important aspect of Professor Glezer’s work has been the development of innovative, minimally-invasive actuation approaches to create and exploit small changes in the flow field to produce large-scale system response. His research has explored the fundamental flow physics associated with electromechanical (e.g., piezoelectric), fluidic (synthetic jets, fluidic oscillators, aerodynamic bleed), and chemical-reaction (combustion based) actuation methodologies, and their utility for achieving system-level performance benefits. Professor Glezer's has played an active role in the maturation and transition his aerodynamic flow control technologies from basic laboratory research to flight platforms in a number of close collaborations with US Government (AFRL, ARL, NASA) and Industry (Boeing, UTRC, and Spectral Energies) researchers. Applications have included aerodynamic performance and control (e.g., high-lift, drag reduction), propulsion (embedded propulsion inlets), small-scale mixing (directed energy beam improvement), and enhanced heat transfer (avionics thermal management). Professor Glezer’s research has been supported by AFOSR, ARO, ARPA-E, DARPA, NSF, NASA, and ONR. Industrial sponsors have included Boeing, Intel, Honeywell, IBM, Novartis, and United Technologies.
Glezer, A. and Amitay, M. “Synthetic Jets,” Ann. Rev. Fluid Mech, 24, 2002.
Glezer, A., Amitay, M., and Honohan, A., "Aspects of Low- and High-Frequency Actuation for Aerodynamic Flow Control," AIAA Journal, 43, 2005.
Smith, B. L., and Glezer A., “Vectoring of Adjacent Synthetic Jets,” AIAA Journal, 43, 2117-2124, 2005.
Amitay, M. And Glezer, A., “Flow Transients Induced on a 2D Airfoil by Pulse-Modulated Actuation,” Experiments in Fluids, 40, 329, 2006.
Crittenden, T. M., and Glezer, A., “A High-Speed, Compressible Synthetic Jet," Physics of Fluids, 18, 017107 (18 pages), 2006.
Coe, D. J., Allen, M. G., Rinehart, C. S., Glezer, A. “Pneumatically Actuated Micromachined Synthetic Jet Modulators,” Sensors and Actuators, 132, 689-700, 2006.
Amitay, M., and Glezer, A. “Aerodynamic Flow Control using Synthetic Jet Actuators,” in Control of Fluid Flow, P. Koumoutsakos and I. Mezic, Eds., Lecture Notes in Control and Information Sciences 330, Springer, Springer New York, 2006.
Vukasinovic, B., Brzozowski, D., Glezer, A., “Fluidic Control of Separation Over a Hemispherical Turret,” AIAA J., 47, 2212-2222, 2009.
Brzozowski, D., Woo, G., Culp, J., Glezer, A., “Transient Separation Control using Pulse-Combustion Actuation,” AIAA J., 48, 2482-2490, 2010.
Glezer, A. “Aspects of Aerodynamic Flow Control using Synthetic Jet Actuation”, Philosophical Transactions of the Royal Society A, 369, 1476-1494, 2011.
Lopez, O. D. M.; Moser, R. D., Brzozowski; D. P., and Glezer, A., “Effects of Trailing-Edge Synthetic Jet Actuation on an Airfoil,” AIAA J. 49, 1763-1777, 2011.
Abramson, P., Vukasinovic, B., and Glezer, A., “Fluidic Control of Aerodynamic Forces on a Bluff Body of Revolution,, AIAA J., 50, 832-843, 2012.
T. K. Woo, T. K. and Glezer, A., “Controlled transitory stall on a pitching airfoil using pulsed actuation,” Exp Fluids, 54, 1507, 2013.
14. Kearney, J. M., and Glezer, A., “Aerodynamic Control of a Pitching Airfoil by Active Bleed,” AIAA Paper 2014-2045, 32nd Applied Aerodynamics Conference, Atlanta, GA, 2014.
15. Kearney, J. M., and Glezer, A., “Aerodynamic Control using Distributed Active Bleed,” submitted to AIAA Journal (in review).