Research Interests

Mathematical Modeling, Nonlinear Aerodynamics, Unsteady Flow, Modeling & Simulation, Optimization, Computational Fluid Dynamics, Reduced Order Models, Turbulence, Flow Stability and Control.

Projects

Multifidelity Robust Aeroelastic Design
Development of Multidisciplinary, Multifidelity Analysis, Integration and Optimization of Aerospace Vehicles
NEAR Response Surface Package Multidimensional and Data Fusion Modeling
Comparison of Kernel-Based Reduced-Order Models for Aeroelastic Computations
Nonlinear Time-Domain Characterization of Acoustic Liners
Nonlinear Characterization of Electromagnetic Pulse Response (EMP)
Nonlinear Indicial Prediction System for Unsteady Aerodynamic Modeling
Volterra Kernel Identification for AeroServoElastic Applications
Unstructured MacroCell Solver for the Prediction of Dynamic Stall
Novel Concepts for a CFD-Enhanced ASTROS Capability
Compressible Turbulence
Vorticity Dynamics of Dynamic Stall
Turbulence in Rarefied Flow
Sea-Skimming Missile
Vorticity-Enhanced Unsteady Full-Potential Equations

Background

Dr. Reisenthel supports basic and applied research activities at NEAR. He has over 20 years experience in fluid mechanics and aerodynamics. He is the developer of modeling techniques which have been applied to a diverse range of technical fields, including aeroservoelasticity, aeroacoustics, and electromagnetic pulse response of aircraft. More recently, he has been involved in the quantification of computational uncertainty, the development of multidimensional response surface technology, and their combined application to risk-based optimization and multifidelity optimization.

Since 1989, he has worked on the development of improved computational methods used to predict vortical flow around slender bodies, and their application to computational aeroelasticity. Dr. Reisenthel also made contributions in the areas of compressible turbulence, turbulence in rarefied gases, and unsteady flow separation at high Reynolds numbers. Dr. Reisenthel directed a research program aimed at the mathematical modeling of nonlinear aerodynamics for flight simulations, using nonlinear indicial response theory. This effort resulted in the development of NEAR's Indicial Prediction System (IPS) software. He is has pursued the application of this technology to a diverse range of technical fields, including aeroservoelasticity, aeroacoustics, earthquake (geotechnical/geoenvironmental) engineering, electromagnetics, and nonlinear sea-keeping.

Prior to joining Nielsen Engineering, Dr. Reisenthel was a Visiting Assistant Professor in the Mechanical Engineering Department at the Illinois Institute of Technology (IIT). While at IIT, Dr. Reisenthel carried out research in three-dimensional unsteady separation for flow around pitching forebodies. There, he also taught courses in applied mathematics and heat transfer. As a Ph.D. candidate, he made contributions in the areas of free shear flow stability with feedback enhancement. His M.S. research focused on the control of flow separation behind a rearward facing step using forced unsteadiness.

Education

Associations

American Institute of Aeronautics and Astronautics, Senior Member
Society for Industrial and Applied Mathematics, Member

Publications and Reports

1. Reisenthel, P. H., Lesieutre, D. J. and Quijano, O. E. "Statistical Analysis of Jettison Ejection Scenarios," AIAA-2015-1926, Jan. 2015.
2. Reisenthel, P. H. and Allen, T. T. "Application of Multifidelity Expected Improvement Algorithms to Aeroelastic Design Optimization," AIAA-2014-1490, Jan. 2014.
3. Reisenthel, P. H., Mendenhall, M. R., Lesieutre, D. J., Perkins, S. C., Quijano, O. E., and Pruzan, D. A. "JLG Aerodynamic Analysis," NEAR TR 672, Nielsen Engineering & Research, Santa Clara, CA, Jul. 2013.
4. Reisenthel, P. H., Lesieutre, D. J., and Quijano, O. E., "Robust Recurrence Framework for Unsteady Multifidelity Aeroelastic Analysis," NEAR TR 670, Nielsen Engineering & Research, Santa Clara, CA, Sep. 2011.
5. Reisenthel, P. H., Mendenhall, M. R., and Quijano, O. E., "Overflow Calculations of ALAS Stability Augmentation Grid Fins," NEAR TR 669, Nielsen Engineering & Research, Santa Clara, CA, 2011.
6. Reisenthel, P. H., and Lesieutre, D. J., "A Numerical Experiment on Allocating Resources Between Design of Experiment Samples and Surrogate-Based Optimization Infills," AIAA 2011-2150, Apr. 2011.
7. Reisenthel, P. H., Mendenhall, M. R., and Quijano, O. E., "Viscous Aerodynamic Analysis of the Row 44 DBS Dorsal Radome Installed on a Boeing 737-300,"NEAR TR 666, Nielsen Engineering & Research, Santa Clara, CA, 2011.
8. Reisenthel, P. H., and Lesieutre, D. J., "Statistical Benchmarking of Surrogate-Based on Other Optimization Methods Constrained by Fixed Computational Budget," AIAA 2010-3088, Apr. 2010.
   
9. Reisenthel, P. H., Allen, T. T., Lesieutre, D. J., and Lee, S. H., "Development of Multidisciplinary, Multifidelity Analysis, Integration and Optimization of Aerospace Vehicles," NEAR TR 657, Nielsen Engineering & Research, Santa Clara, CA, 2010.
10. Pruzan, D. A. and Reisenthel, P. H., "Vortex Flow Detector for Turbine Engine Test Facilities," NEAR TR 647, Nielsen Engineering & Research, Santa Clara, CA, 2008.
11. Mendenhall, M. R., Reisenthel, P. H., Quijano, O. E., and Chou, H. S. Y., "Computational Aerodynamic Analysis of the AirCell ATG Antenna and Jeteye System Installed on a B767-200 Aircraft," NEAR TR 646, Nielsen Engineering & Research, Santa Clara, CA, 2008.
12. Reisenthel, P. H., Mendenhall, M. R., Childs, R. E., Chou, H. Y., and Maly, J. R., "Large Asymmetric Launch Vehicle Payload Fairing," AFRL-RV-PS-TR-2008-1101, Nielsen Engineering & Research, Santa Clara, CA, 2008.
13. Childs, R. E. and Reisenthel, P. H., "Probabilistic Error Modeling in Computational Fluid Dynamics," Paper Number 1, RTO-MP-AVT-147, Presented at NATO-RTO Symposium on Computational Uncertainty in Military Vehicle Design, Athens, Greece, Dec. 2007.
14. Childs, R. E., Reisenthel, P. H., and Rodman, L. C., "Comprehensive Uncertainty Estimation for Computational Fluid Dynamics," NEAR TR 637, Nielsen Engineering & Research, Mountain View, CA, Oct. 2007.
15. Rodman, L. C., Reisenthel, P. H., and Childs, R. E., "Over_SQA User's Manual," NEAR TR 636, Nielsen Engineering & Research, Mountain View, CA, 2007.
16. Reisenthel, P. H. and Lesieutre, D. J., "Cumulative Metamodeling With Uncertainty Estimation: A New Approach to Risk-Based Optimization of Aerospace Vehicles," NEAR TR 632, Nielsen Engineering & Research, Mountain View, CA, Jul. 2007.
17. Prazenica, R. J., Reisenthel, P. H., Kurdila, A. J., and Brenner, M. J., "Volterra Kernel Extrapolation for Modeling Nonlinear Aeroelastic Systems at Novel Flight Conditions," Journal of Aircraft, Vol. 44, No. 1 (2007), pp. 149-162.
18. Reisenthel, P. H., Childs, R. E, and Higgins, J. E., "Surrogate-Based Design Optimization of a Large Asymmetric Launch Vehicle Payload Fairing," AIAA 2007-361, Jan. 2007.
19. Reisenthel, P. H., Love, J. F., Lesieutre, D. J., and Childs, R. E., "Cumulative Global Metamodels with Uncertainty -- a tool for aerospace integration," The Aeronautical Journal, June 2006, pp. 375-384.
20. Reisenthel, P. H., Love, J. F., Lesieutre, D. J., and Dillenius, M. F. E., "Innovative Fusion of Experiment and Analysis for Missile Design and Flight Simulation," Paper Number 23, Presented at NATO-RTO Symposium on Innovative Missile Systems, Amsterdam, The Netherlands, May 2006, RTO-MP-AVT-135.
21. Mendenhall, M. R., Chou, H. S. Y., Reisenthel, P. H., Lesieutre, D. J., and Love, J. F., "Jeteye(tm) System Computational Aerodynamic Analysis," NEAR TR 616, Nielsen Engineering & Research, Mountain View, CA, Jan. 2006.
22. Reisenthel, P. H., Love, J. F., Lesieutre, D. J., and Childs, R. E., "Cumulative Global Metamodels with Uncertainty: a Tool for Aerospace Integration," CEIAT 2005-0019, [CD-ROM] 1st International Conference on Innovation & Integration in Aerospace Sciences, Queen's University, Belfast, Northern Ireland, UK, 4-5 Aug. 2005.
23. Keefe, L. R., and Reisenthel, P.H., "Time-Domain Characterization of Acoustic Liner Response from Experimental Data. Part 1: Linear Response," AIAA 2005-3060, May 2005.
24. Childs, R. E., Reisenthel, P. H., Rose, J., and Maly, J., "Large Asymmetric Launch Vehicle Payload Fairing," NEAR TR 611, Nielsen Engineering & Research, Mountain View, CA, Apr. 2005.
25. Reisenthel, P. H., "Comparison of Kernel-Based Reduced-Order Models for Aeroelastic Computations," NEAR TR 605, Nielsen Engineering & Research, Mountain View, CA, Jul. 2004.
26. Reisenthel, P. H., Pruzan, D. A., Lesieutre, D. J., and Love, J. F., "Nonlinear Characterization of Electromagnetic Pulse Response Using Continuous Wave Electromagnetic Data," NEAR TR 602, Nielsen Engineering & Research, Mountain View, CA, Apr. 2004.
27. Prazenica, R. J., Reisenthel, P. H., Kurdila, A. J., and Brenner, M. J., "Volterra Kernel Identification and Extrapolation for the F/A-18 Active Aeroelastic Wing," AIAA-2004-1939, Apr. 2004.
28. Keefe, L. R., Reisenthel, P. H., and Love, J. F., "Time-Domain Nonlinear Characterization of Acoustic Liner Response," NEAR TR 601, Nielsen Engineering & Research, Mountain View, CA, Apr. 2004.
29. Prazenica, R. J., Reisenthel, P. H., and Kurdila, A. J., "Novel System Identification Tools For Multiresolution Analysis of Aeroservoelastic Flight Test Data," NEAR TR 600, Nielsen Engineering & Research, Mountain View, CA, Jan. 2004.
30. Rodman, L. C., Reisenthel, P. H., Love, J. F., and Childs, R. E., "A CFD Data Management System for Analyzing Multiple Calculations," NEAR TR 581, Nielsen Engineering & Research, Mountain View, CA, 2003.
31. Rodman, L. C., Reisenthel, P. H., and Childs, R. E., "An Automated Documentation and Reporting System for CFD," AIAA 2002-0986, Jan. 2002.
32. Keefe, L. R. and Reisenthel, P. H., "Nonlinear Time-Domain Boundary Conditions From Liner Response Data," NEAR TR 568, Nielsen Engineering & Research, Mountain View, CA, Aug. 2001.
33. Keefe, L. R., Pruzan, D. A., Reisenthel, P. H., and Childs, R. E., "Nonintrusive, Acoustic Boundary Layer Profiler for Aerodynamic Tests," NEAR TR 567, Nielsen Engineering & Research, Mountain View, CA, Aug. 2001.
34. Reisenthel, P. H., "Nonlinear Characterization of Electromagnetic Pulse Response Using Continuous Wave Electromagnetic Data," NEAR TR 564, Nielsen Engineering & Research, Mountain View, CA, Apr. 2001.
35. Rodman, L. C., Reisenthel, P. H., and Childs, R. E., "An Automated Documentation and Reporting Tool For Aerospace Design Data," NEAR TR 555, Nielsen Engineering & Research, Mountain View, CA, Jun. 2000.
36. Reisenthel, P. H., "Prediction of Unsteady Aerodynamic Forces Via Nonlinear Kernel Identification," NEAR Paper 379, 1999 International Forum on Aeroelasticity and Structural Dynamics, Williamsburg, VA, Jun. 1999.
37. Reisenthel, P. H., "A Nonlinear Volterra Kernel Identification System for Aeroelastic Applications," NEAR TR 547, Nielsen Engineering & Research, Mountain View, CA, Jun. 1999.
38. Childs, R. E., Treidler, E. B., Reisenthel, P. H., and Ekaterinaris, J. A., "Advanced Adaptive CFD Methodology for Dynamic Stall," NEAR TR 550, Nielsen Engineering & Research, Mountain View, CA, Jun. 1999.
39. Bettencourt, M. T. and Reisenthel, P. H., "Indicial Prediction System Version 1.0 User's Manual," NEAR TR 542, Nielsen Engineering & Research, Mountain View, CA, 1999.
40. Reisenthel, P. H. and Bettencourt, M. T., "Semiconductor Modeling Using the Indicial Prediction System," NEAR TR 541, Nielsen Engineering & Research, Mountain View, CA, Jan. 1999.
41. Reisenthel, P. H. and Bettencourt, M. T., "Extraction of Nonlinear Indicial and Critical State Responses from Experimental Data," AIAA 99-0764, Jan. 1999.
42. Reisenthel, P. H. and Bettencourt, M. T., "Data-based Aerodynamic Modeling Using Nonlinear Indicial Theory," AIAA 99-0763, Jan. 1999.
43. Reisenthel, P. H. and Childs, R. E., "Wave Number-Based Criterion for Dynamic Mesh Refinement in CFD," AIAA 99-0300, Jan. 1999.
44. Childs, R. E., Treidler, E. B., Ekaterinaris, J. A., and Reisenthel, P. H., "A High-Accuracy Solution-Adaptive Unstructured Macro-Cell Algorithm for CFD," AIAA 99-0917, Jan. 1999.
45. Reisenthel, P. H., Xie, W., Gursul, I., and Bettencourt, M. T., "An Analysis of Fin Motion Induced Vortex Breakdown," AIAA 99-0136, Jan. 1999.
46. Bettencourt, M. T. and Reisenthel, P. H., "Indicial Prediction System User's Manual," AFRL-VA-WP-TR-1998-3087, Air Force Research Lab., Wright-Patterson AFB, OH, Jan. 1999.
47. Reisenthel, P. H. and Bettencourt, M. T., "Development of a Nonlinear Indicial Prediction System for Unsteady Aerodynamic Modeling," AFRL-VA-WP-TR-1998-3086, Air Force Research Lab., Wright-Patterson AFB, OH, Jan. 1999. 
    
48. Reisenthel, P. H., "Development of a Nonlinear Indicial Prediction System for Unsteady Aerodynamic Modeling," NEAR TR 543, Nielsen Engineering & Research, Mountain View, CA, 1999.
49. Reisenthel, P. H., Bettencourt, M. T., Myatt, J. H., and Grismer, D. S., "A Nonlinear Indicial Prediction Tool For Unsteady Aerodynamic Modeling," AIAA 98-4350, Aug. 1998.
50. Reisenthel, P. H., "Development of a Nonlinear Indicial Model Using Response Functions Generated by a Neural Network," AIAA 97-0337, Jan. 1997.
51. Childs, R. E. and Reisenthel, P. H., "Dynamical Compressibility Effects in Simulated Turbulent Layers," AIAA 97-0428, Jan. 1997.
52. Reisenthel, P. H. and Childs, R. E., "Advanced Adaptive CFD Methodology for Dynamic Stall," NEAR TR 514, Nielsen Engineering & Research, Mountain View, CA, Nov. 1996.
53. Reisenthel, P. H., "Application of Nonlinear Indicial Modeling to the Prediction of a Dynamically Stalling Wing," AIAA 96-2493, Apr. 1996
54. Childs, R. E. and Reisenthel, P. H., "A Study of Compressible Turbulence," NEAR TR 511, Nielsen Engineering & Research, Mountain View, CA, May 1996.
55. Reisenthel, P. H., "Novel Concepts for a CFD-Enhanced ASTROS Capability," NEAR TR 510, Nielsen Engineering & Research, Mountain View, CA, Apr. 1996.
56. Dillenius, M. F. E., Reisenthel, P. H., and Lesieutre, D. J., "Test Plans for Demonstrating the Efficacy of the King Arrow-Flow System," NEAR TR 505, Nielsen Engineering & Research, Mountain View, CA, Jan. 1996.
57. Reisenthel, P. H., "Development of a Nonlinear Indicial Model for Maneuvering Fighter Aircraft," AIAA 96-0896, Jan. 1996.
58. Reisenthel, P. H., "Novel Application of Nonlinear Indicial Theory for Simulation and Design of Maneuvering Fighter Aircraft," WL-TR-95-3094, Wright Lab., Wright-Patterson AFB, OH, Dec. 1995.  Also: NEAR TR 502, Nielsen Engineering & Research, Mountain View, 1995.
59. Lesieutre, D. J., Reisenthel, P. H., and Dillenius, M. F. E., "Analysis of Arrow-Flow Coast-Down Data," NEAR TR 504, Nielsen Engineering & Research, Mountain View, CA, Nov. 1995.
60. Reisenthel, P. H., "Enhanced Wind-Tunnel Productivity Using CVS," NEAR Paper 341, Nielsen Engineering & Research, Mountain View, CA, Aug. 1995.
61. Childs, R. E. and Reisenthel, P. H., "Simulation Study of Compressible Turbulent Boundary Layers," AIAA 95-0582, Jan. 1995.
62. Reisenthel, P. H., "Further Results on the Reynolds Number Scaling of Incipient Leading Edge Stall," AIAA 95-0780, Jan. 1995.
63. Childs, R. E. and Reisenthel, P. H., "A Study of Compressible Turbulence," NEAR TR 486, Nielsen Engineering & Research, Mountain View, CA, Oct. 1994.
64. Reisenthel, P. H., "Vorticity Dynamics and Control of Dynamic Stall," NEAR TR 482, Nielsen Engineering & Research, Mountain View, CA, Aug. 1994.
65. Reisenthel, P. H. and Caruso, S. C., "A Simplified Vorticity-Enhanced Potential Flow Method for Early Design and Analysis of Maneuvering Aircraft at High Angles of Attack," NEAR TR 480, Nielsen Engineering & Research, Mountain View, CA, Jul. 1994.
66. Reisenthel, P. H. and Childs, R. E., "A Study of Reynolds Number Effects on Incipient Leading Edge Stall," AIAA 94-2339, Jun. 1994.
67. Nixon, D. and Reisenthel, P. H., "A Theoretical Study of the Causes and Control of Buffet," AIAA 94-0312, Jun. 1994.
68. Lesieutre, D. J., Reisenthel, P. H., Dillenius, M. F. E.,  Viazzo, D., Fisher, S., Bhat, S., and McIntosh, S.,  "Unsteady Simulation of Flexible Missiles Flying Low Over the Sea," AIAA 94-0720, Jan. 1994.
69. Lesieutre, D. J. and Reisenthel, P. H., "A Practical Approach for Calculating Aerodynamic Indicial Functions with a Navier-Stokes Solver," AIAA 94-0059, Jan. 1994.
70. Reisenthel, P. H. and Nixon, D., "Turbulence Analysis of a Slightly Rarefied Gas Flowing Through a Channel," AIAA 94-0407, Jan. 1994.
71. Reisenthel, P. H., "Towards a Semi-Automatic Tool for the Prediction of Dynamic Stall," AIAA 94-0537, Jan. 1994.
72. Lesieutre, D. J., Reisenthel, P. H., and Dillenius, M. F. E., "An Unsteady Aerodynamics Model Based on Indicial Theory for Multidisciplinary Flight Simulations," NEAR TR 468, Nielsen Engineering & Research, Mountain View, CA, Aug. 1993.
73. Reisenthel, P. H., Perkins, S. C., Jr., and Nixon, D., "A Study of Turbulence in Rarefied Gases," AIAA 93-3097, Jul. 1993.
74. Reisenthel, P. H., Nixon, D., and Perkins, S. C., Jr., "A Study of Turbulence in Rarefied Gases," NEAR TR 463, Nielsen Engineering & Research, Mountain View, CA, Jun. 1993.
75. Reisenthel, P. H., Rodman, L. C., and Nixon, D., "Development of an Engineering Level Prediction Method for High Angle of Attack Aerodynamics," AIAA 93-0208, Jan. 1993.
76. Lesieutre, D. J., Dillenius, M. F. E., Reisenthel, P. H., and Lesieutre, T. O., "Unsteady Aerodynamic Simulation of a Rigid SLAT Vehicle Flying Low Over the Sea," NEAR TR 451, Nielsen Engineering & Research, Mountain View, CA, Oct. 1992.
77. Reisenthel, P. H., "Development of a Prediction Method for High Angle of Attack Aerodynamics," NEAR TR 453, Nielsen Engineering & Research, Mountain View, CA, Aug. 1992.
78. Reisenthel, P. H. and Nixon, D., "A Study of Turbulence in Rarefied Gases," NEAR TR 441, Nielsen Engineering & Research, Mountain View, CA, Dec. 1991.
79. Nagib, H. M., Acharya, M., Corke, T. C., Reisenthel, P. H., and Wark, C. C., "Management and Control of Unsteady and Turbulent Flows," AFOSR-TR-91-0726, Air Force Office of Scientific Research, Bolling AFB, DC, Jul. 1991.
80. Reisenthel, P. H. and Nixon, D., "Application of Indicial Theory to the Prediction of Unsteady Separation," AIAA 91-1742, Jun. 1991.
81. Reisenthel, P. H., Lesieutre, D. J., and Nixon, D., "Prediction of Aeroelastic Effects for Sea Skimming Missiles with Flow Separation," AIAA 91-1052, Apr. 1991.
82. Reisenthel, P. H., Xiong, Y., and Nagib, H. M., "The Preferred Mode in an Axisymmetric Jet With and Without Enhanced Feedback," AIAA 91-0315, Jan. 1991.
83. Reisenthel, P. H. and Nixon, D., "Prediction of Unsteady Separated Transonic Flow Around Missile Configurations," AIAA 91-0601, Jan. 1991.
84. Kusek, S. M., Corke, T. C., and Reisenthel, P. H., "Seeding of Helical Modes in the Initial Region of an Axisymmetric Jet," Experiments in Fluids, Vol. 10, No. 2/3, Dec. 1990, pp. 116-124.
85. Reisenthel, P. H. and Nixon, D., "Prediction of Unsteady Transonic Separated Flow for Missile Application," NEAR TR 418, Nielsen Engineering & Research, Mountain View, CA, Dec. 1990.
86. Nixon, D., Reisenthel, P. H., Torres, T. O., and Klopfer, G. H., "Prediction of Unsteady Transonic Flow Around Missile Configurations," AIAA 90-0934, Apr. 1990.
87. Drubka, R. E., Reisenthel, P. H., and Nagib, H. M., "The Dynamics of Low Initial Disturbance Turbulent Jets," Physics of Fluids A, Vol. 1, No. 10, Oct. 1989.
88. Montividas, R. E., Reisenthel, P. H., and Nagib, H. M., "The Scaling and Control of Vortex Geometry Behind a Pitching Forebody," AIAA 89-1003, Mar. 1989.
89. Kusek, S. M., Corke, T. C., and Reisenthel, P. H., "Control of Two and Three Dimensional Modes in the Initial Region of an Axisymmetric Jet," AIAA 89-968.
90. Reisenthel, P. H., Corke, T. C., Nagib, H. M., Rosenblatt, S., and Horowitz, J., "Global Instabilities in Jets with Feedback," Research on Turbulence, June 28-30, 1988, AFOSR Contractors' Meeting, U.S.C., Los Angeles, CA, Jun. 1988.
91. Nagib, H. M., Acharya, M., Reisenthel, P. H., Way, J. L., and Williams, D. R., "Management and Control of Separation by Unsteady and Vortical Flows, " AFOSR-TR-88-0745, Air Force Office of Scientific Research, Jun. 1988.
92. Nagib, H. M., Acharya, M., Corke, T. C., Reisenthel, P. H., and Wark, C. E., "Management and Control of Unsteady and Turbulent Flows, AFOSR-TR-88-0747, Air Force Office of Scientific Research, Jun. 1988.
93. Reisenthel, P. H., "Hybrid Instability in an Axisymmetric Jet with Enhanced Feedback," Ph.D. Dissertation, School of Advanced Studies, IIT, Chicago, IL, May 1988.
94. Reisenthel, P. H., Nagib, H. M., and Koga, D. J., "Control of Separated Flows Using Forced Unsteadiness," AIAA 85-0556, Mar. 1985.
95. Nagib, H. M., Reisenthel, P. H., and Koga, D. J., "On the Dynamical Scaling of Forced Unsteady Separated Flows," AIAA 85-0553, Mar. 1985.
96. Reisenthel, P. H., "Reattachment Control Behind a Rearward Facing Step Using Forced Unsteadiness," Master's Thesis, School of Advanced Studies, IIT, Chicago, IL, Dec. 1984.
97. Koga, D. J., Reisenthel, P., and Nagib, H. M., "Control of Separated Flowfields Using Forced Unsteadiness," IIT Fluids & Heat Transfer Report R84-1, IIT, Chicago, IL, Jan. 1984.