ase & em | faculty

Awatef Hamed

Department Head
Bradley Jones Professor of Aerospace Engineering & Engineering Mechanics
PhD, 1972: University of Cincinnati

Executive Secretary, International Society for Air Breathing Engines
Editor, International Journal of Computational Fluid Dynamics

Office: 745E Baldwin Hall
Mailing address: P.O. Box 210070, Cincinnati, OH 45221-0070
Phone: (513) 556-3553
Fax: (513) 556-5038
Email: A dot Hamed at UC dot edu

M & W, 10:00 - 11:30 a.m.
T & H, 3:30 - 4:30 p.m.
and by appointment

• 20 AEEM 519 ENGINE DESIGN I, 05A
• 20 AEEM 930 001 ADV PROPULSION SYS, 05A
• 20 AEEM 523 ENGINE DESIGN II, 06W
• 20 AEEM 931 001 ADV PROPULSION SYST, 06W

• Propulsion systems
• Two phase flow
• Aeroacoustics
• Gas turbines

• Hamed, A., How Jet Propulsion Engines Work, Scientific American [online], Ask The Experts, Astronomy. Available at http://www.sciam.com/askexpert/astronomy/astronomy36/. [May 1st, 2000]

• Hamed, A., "Erosion," McGraw Hill YEARBOOK OF SCIENCE AND TECHNOLOGY, Jonathan Weil, Editor, 1997, pp. 179-181.
• Hamed, A., Editor, "Numerical Simulations in Turbomachinery," ASME FED-Vol. 227, 1995.

• Hamed, A., Tabakoff, W. & Wenglarz, R., Erosion & Deposition in Turbomachinery, J. of Propulsion & Power, Vol. 22, No. 2, Mar-Apr 2006: pp. 350-360.
• Hamed, A., Tabakoff, W., Rivir, R.B., Das, K., & Arora, P., Turbine Blade Surface Deterioration by Erosion, J. of Turbomachinery, Vol. 127, Jul 2005: pp. 445-452.
• Numbers, K., and Hamed, A., Conservation Coupling Technique for Dynamic Inlet-Engine Analyses, J. of Propulsion & Power, Vol. 19, No. 3., May-June 2003: pp. 444-455.
• Tabakoff, W., Hamed, A. and Shanov, V., Blade Deterioration in a Gas Turbine Engine, International Journal of Rotating Machinery, Vol. 4, November 1998, pp. 233-241.
• Hamed, A., Tabakoff, W. and Singh, D., Modeling of Compressor Performance Deterioration Due to Erosion, International Journal of Rotating Machinery, Vol. 4, November 1998, pp. 243-248.
• Jun, Y.D. and Hamed, A., Vectorized Directional Sweep Based Parallelization Method for Factored Alternating Direction Implicit (ADI) Schemes, International Journal of Computational Fluid Dynamics, 1998, Vol. 10, pp. 291-299
• Hamed, A. and Vogiatzis, C. "Overexpanded Two- Dimensional Convergent-Divergent Nozzle Performance: Effects of Three Dimensional Flow Interactions" Journal of Propulsion and Power, Vol.. 14 No. 2, March-April 1998.
• Hamed, A. and Vogiatzis, C. "Assessment of Turbulence models in Overexpanded 2DCD Nozzles" Journal of Propulsion and Power, Vol.. 13 No. 3, May-June 1996, pp. 444-445.
• Murugan, D.M., Tabakoff, W., Hamed, A., "Three-Dimensional Flow Field Measurements Using LDV in the Exit Region of a Radial Inflow Turbine," International Journal on Experiments in Fluids, Springer-Verlag, 21 (1996), 1-10.
• Tabakoff, W., Hamed, A. and Murugan, D.M., "Effect of Target Materials on the Particle Restitution Characteristics for Turbomachinery Application," Journal of Propulsion and Power, Vol. 12, No. 2, March-April 1996, pp. 260-266.
• Hamed, A., Yeuan, J.J. and Jun, Y.D., "Flow Characteristics in Boundary-Layer Bleed Slots with Plenum," Journal of Propulsion and Power, Vol. 12, No. 2, March-April 1996, pp. 231-236.
• Hamed, A., Yeuan, J.J. and Shih, S.H., "Shock-Wave Boundary Layer Interactions with Bleed, Part 1: Effect of Slot Angle," Journal of Propulsion and Power, Vol. 11, No. 6, November-December 1995, pp. 1231-1235.
• Hamed, A., Yeuan, J.J. and Shih, S.H., "Shock-Wave Boundary Layer Interactions with Bleed, Part 2: Effect of Slot Location," Journal of Propulsion and Power, Vol. 11, No. 6, Nov.-Dec. 1995, pp. 1236-1241.
• Hamed, A. and Kuhn, T.P., "Effects of Variational Particle Restitution Characteristics on Turbomachinery Erosion," Journal of Engineering for Gas Turbines and Power, July 1995, Vol. 117, pp. 432-440.
• Hamed, A., Jun, Y.D. and Yeuan, J.J., "Particle Dynamics Simulations in Inlet Separator with an Experimentally-Based Bounce Model," Journal of Propulsion and Power, Vol. 11, No. 2, March-April 1995, pp. 230-235.
• Hamed, A. and Lehnig, T., "Effect of Bleed Configuration on Shock/Laminar Boundary-Layer Interactions," Journal of Propulsion and Power, Vol. 11, No. 1, Jan. Feb. 1995.
• Tabakoff, W., Metwally, M. and Hamed, A., "High-Temperature Coatings for Protection Against Turbine Deterioration," Journal of Engineering for Gas Turbines and Power, January 1995, Vol. 117, pp. 146-151.
• Metwally, M., Tabakoff, W. and Hamed, A., "Blade Erosion in Automotive Gas Turbine Engine," Journal of Engineering for Gas Turbines and Power, January 1995, Vol. 117, pp. 213-219.

• Das, K., Hamed, A. & Basu, D., "Droplet Trajectories and Collection on Fan Rotor at Off-Design Conditions," GT 2006-91214, ASME Turbo Expo, Barcelona, Spain, May 8-11, 2006
• Basu, D., Hamed, A., Das, K., Tomko, K. & Liu, Q., "Comparative Analysis of Hybrid Turbulence Closure Models in Unsteady Transonic Separated Flow Simulations," AIAA-2006-0117, Reno, NV, January 9-12, 2006
• Das, K., Hamed, A. & Basu, D., "Ice Shape Prediction For Turbofan Rotating Blades," AIAA-2006-0209, Reno, NV, January 9-12, 2006
• Das, K., Hamed, A. & Basu, D., "Effect of Super-Cooled Water Droplet Characteristics on Fan Rotor-Ice Accretion," ISABE-2005-1248, 17th ISABE, Munich, Germany, Sep 4 - 9, 2005.
• Das, K., Hamed, A. & Basu, D., "Numerical Investigations Of Transonic Cavity Flow Control Using Steady And Pulsed Fluidic Injection," FEDSM2005-77422, ASME FEDSM, Houston, TX, Jun 19-23, 2005.
• Basu, D., Hamed, A. & Das, K., "DES, Hybrid RANS/LES And PANS Models For Unsteady Separated Turbulent Flow Simulations," FEDSM2005-77421, ASME FEDSM, Houston, TX, Jun 19-23, 2005.
• Hamed, A., Basu, D., Tomko, K., & Liu, Q., "Performance Characterization and Scalability Analysis of a Chimera Based Parallel Navier-Stokes Solver on Commodity Clusters," Proc. of the International Conference on Parallel Computational Fluid Dynamics, College Park, MD, May 24-27 2005.
• Basu, D., Hamed, A., and Das, K., "DES and Hybrid RANS/LES models for unsteady separated turbulent flow predictions," AIAA Paper 2005-0503, 43rd AIAA Conference, Reno, Nevada, January 2005 | PDF version
• Hamed, A., Das, K., and Basu, D., "Numerical simulations of ice droplet trajectories and collection efficiency on aero-engine rotating machinery," AIAA Paper 2005-1248, 43rd AIAA Conference, Reno, Nevada, January 2005 | PDF version
• Hamed, A., Tabakoff, W., Rivir, R., Das, K. & Arora, P., Turbine Blade Surface Deterioration By Erosion, IGTI 2004-54328, Proc. ASME Turbo Expo 2004, Vienna, Austria, Jun 14-17, 2004; acc. ASME J. of Turbomachinery.
• Hamed, A., Das, K., and Basu, D., "Numerical Simulations of Fluidic Control for Transonic Cavity Flows", AIAA Paper 2004-0429, 42nd AIAA Conference, Reno, Nevada, January 2004
• Hamed, A., Basu, D., and Das, K., "Assessment Of Hybrid Turbulence Models For Unsteady High Speed Separated Flow Predictions," AIAA Paper 2004-0684, 42nd AIAA Conference, Reno, Nevada, January 2004
• Mohamed A., Hamed, A., and Lehnig, T., " Supersonic Rectangular Over-Expanded Jets of Single and Two-Phase Flows," ISABE 2003-1119, Proceedings of the XVIIIth ISABE, Aug 31-Sep 2, 2003, Cleveland, OH
• Hamed., A, Das, K. and Basu, D., "Characterization of Powered Resonance Tube for High Frequency Actuation," FEDSM2003-45472, Proceedings of FEDSM '03, 4th ASME-JSME Joint Fluids Engineering Conference, Honolulu, HI, Jul 6-11, 2003
• Hamed, A., Basu, D., and Das, K. "Effect of Reynolds Number on the Unsteady Flow and Acoustic Fields of a Supersonic Cavity," FEDSM2003-45473, Proceedings of FEDSM '03, 4th ASME-JSME Joint Fluids Engineering Conference, Honolulu, HI, Jul 6-11, 2003 Slide presentation of FEDSM-45473in PDF format
• Hamed., A, Basu, D., and Das, K., "Detached Eddy Simulations of Supersonic Flow over Cavity," AIAA Paper 2003-0549, 41st AIAA Conference, Reno, Nevada, January 2003.
• Hamed., A, Das, K., Basu, D., "Numerical Simulation and Parametric Study of Hartmann-Sprenger Tube Based Powered Device," AIAA Paper 2003-0550, 41st AIAA Conference, Reno, Nevada, January 2003.
• Hamed, A., Das, K., and Basu, D., Numerical Simulation of Unsteady Flow in Resonance Tube, AIAA Paper 2002-1118, 40th AIAA Conference, Reno, Nevada, January 2002
• Hamed, A. and Mohamed, A., Simultaneous LDV Measurements of Gas and Particle Velocities in Two-Phase Flow, ICFDP7, Dec. 19-21, 2001, Cairo, Egypt
• Hamed., A, Basu, D., and Das, K., Numerical Simulations of Transonic Flow Acoustic Resonance in Cavity, ICFDP7, Dec. 19-21, 2001, Cairo, Egypt
• Hamed, A., Basu, D., Mohamed, A. and Das, K. Direct Numerical Simulations of High Speed Flow over Cavity, Proceedings (TAICDL), August 5-9, 2001, Arlington, Texas.
• Hamed, A. and Mesalhy, O., Gas-Particle Flows in CO2 Pellet-Blasting Nozzles, ISABE Paper 2001-1182, XV ISOABE Conference, Sept 2-7, 2001, Bangalore, India
• Hamed, A. and Mohamed, A., Assessment of Shock Induced Flow Separation and Shear Layer mixing Predictions in Nozzles and High Speed Jets, AIAA Paper 2001-0225, January 2001
• Tabakoff, W. and Hamed, A., Erosion Characteristics of Coated and Uncoated Turbomachinery Blade Materials, presented at North Atlantic Treaty Organization Meeting, Session IV, 20 October 1999.
• Ali, A., Hamed, A., Hixon, R., Mankbadi, R., Moberek, A., Rizk, M., Effect of Inflow Treatment on Acoustic Radiation from Large-Scale Structure in a Round Jet, AIAA Paper 99-0083, January 1999.
• Hamed, A., Khavaran, A. and Lee, S-S, "The Flow and Acoustic Predictions for a High By-Pass Ratio Exhaust Nozzle," AIAA Paper 98-3257, July 1998.
• Yeuan, J.J. and Hamed, A., "Three-Dimensional Viscous Flow Simulations in a Turbine Stator Using a Nonperiodic H-Type Grid," AIAA Paper 98-3562, July 1998.
• Hamed, A., Yeuan, J.J. and Liang, T., "3-D Navier-Stokes Simulation of Turbulent Afterbody/Nozzle Flows," AIAA Paper 98-0947, 36th Aerospace Sciences Meeting & Exhibit, January 12-15, 1998, Reno, Nevada.
• Yeuan, J.J., Liang, T., and Hamed, A., "Viscous Flow Simulations in a Transonic Fan Using k- and Algebraic Turbulence Models," AIAA Paper 98-0932, 36th Aerospace Sciences Meeting & Exhibit, Jan. 12-15, 1998, Reno, Nevada.
• Hamed, A. and Vogiatzis, C., "Three Dimensional Flow Effects and External Interactions in Overexpanded 2DCD Nozzles," 13th International Symposium on Air Breathing Engines, September 7-12, 1997, Chattanooga, TN.
• Hamed, A. and Laskowski, G., " A Parametric Study of Slot Injection Thrust Vectoring in a 2DCD Nozzle," AIAA Paper 97-3154, 33rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference, July 6-9, 1997, Seattle, WA.
• Hamed, A. and Numbers, K., " Inlet Distortion Considerations for High Cycle Fatigue in Gas Turbine Engine," AIAA Paper 97-97-3364, 33rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference, July 6-9, 1997, Seattle, WA.
• Numbers, K. and Hamed, A., "Application of a Dynamic Compressor Model as an Inlet CFD Boundary Condition," AIAA Paper 97-2880, 33rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference, July 6-9, 1997, Seattle, WA.
• Hamed, A. and Vogiatzis, C., "Three Dimensional Flow Computations and Thrust Predictions in 2DCD Overexpanded Nozzles," AIAA Paper 97-0030, 35th Aerospace Sciences Meeting & Exhibit, January 6-10, 1997, Reno, Nevada.
• Tabakoff, W., Gunaraj, J., Siravuri, S. and Hamed, A., "Study of Particle-Particle Collision Characteristics Using DYNA3D in Particulate Flow Application," AIAA Paper 97-0505, 35th Aerospace Sciences Meeting & Exhibit, January 6-9, 1997, Reno, Nevada.
• Tabakoff, W., Gunaraj, J.A., Hamed, A. and Surah, D., "Measurements of Solid Particles Rebound Characteristics on Cylindrical Targets," AIAA Paper 96-2957, 32nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference, July 1-3, 1996, Lake Buena Vista, FL.
• Singh, D., Hamed, A. and Tabakoff, W., "Simulation of Performance Deterioration in Eroded Compressors," ASME Paper 96-GT-422, IGTI International Gas Turbine Conference, Birmingham, U.K., June 13-16, 1996.

• Hamed, A., Mesalhy,O., and Lehing, T. Gas-particle flows in CO2 pellet blasting nozzles, Paper 2001-1882, Proceedings 15th International Society of Airbreathing Engines conference, Sept 2-7, 2001, Bangalore, India.
• Hamed, A. and Mesalhy, O., Shock Wave Attenuation in Gas Particle Flows, Proceedings 4th International Conference on Multiphase Flow (ICMF 2001), May 27-June 1, 2001, New Orleans, LA.
• Hamed, A., Internal Shocks in Gas Particle Flows, Proceedings Multiphase Flow 2001, March 14- 16, 2001, Orlando, FLA.
• Tabakoff, W., and Hamed, A., Erosion Characteristics of Coated and Uncoated Turbomachinery Blade Materials, NATO Symposium Proceedings, Gas Turbine Operation and Technology for Land, Sea and Air Propulsion and Power Systems, pp. 21-1 to 21-9; October 18-21, 1999, Ottawa, Canada.
• Hamed, A. and Hosny, K., Numerical Simulation of Shock Waves Using DRP and 2-N Storage LDDRK Schemes, IASTED International Conference on Applied Simulation and Modeling (ASM 20000); July 24-26, 2000, Banff, Canada.
• Hamed, A., Mohamed, A., and Saiyed, N., Numerical Predictions of Exhaust System Flow and Jet Mixing, Proceedings of 14th International Symposium on Air Breathing Engines; September 5-10, 1999, Florence, Italy.
• Hamed, A. and Vogiatzis, C., Three Dimensional Flow Effects and External Interactions in Overexpanded 2DCD Nozzles, Proceedings of 13th International Symposium on Air Breathing Engines, pp. 644-654, September 7-12, 1997, Chattanooga, TN.
• Jun, Y-D and Hamed, A., Vectorized Directional Sweep Based Parallelization Method for Factored Alternating Direction Implicit (ADI) Schemes, Proceedings of 6th International Congress on Fluid Mechanics and Propulsion, Vol. I, pp. 30-38, December 29-31, 1996, Cairo, Egypt.
• Hamed, A., and Laskowski, G., Numerical Simulation of Fluidic Thrust Vectoring in a 2DCD Nozzle, Proceedings 6th International Congress on Fluid Mechanics and Propulsion, Vol. II, pp. 403-415, December 29-31, 1996, Cairo, Egypt.
• Shanov, V., Tabakoff, W. and Hamed, A., Protection of Nickel-Based Superalloys from Erosion in Particulate Flow, Proceedings of 6th International Congress on Fluid Mechanics and Propulsion, Vol. III, pp. 761-770, December 29-31, 1996, Cairo, Egypt.
• Hamed, A. and Tabakoff, W., Erosion in Turbomachinery, Symposium on Erosion Processes, FED Vol. 236, Vol. 1, pp. 743-750; July 7-11, 1996, San Diego, CA.
• Hamed, A., Tabakoff, W. and Singh, D., Modeling of Compressor Performance Deterioration Due to Erosion, Proceedings of 6th International Symposium of Transport Phenomena and Dynamics of Rotating Machinery, Vol. 1, pp. 386-394; Feb. 25-29, 1996 Honolulu, Hawaii.
• Tabakoff, W., Hamed, A. and Shanov, V., Blade Deterioration in a Gas Turbine Engine, Proceedings of the Sixth International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Vol. 1, pp. 21-30; February 25-29, 1996, Honolulu, Hawaii.

• Invited Speaker, 2nd annual Tulane Engineering Forum, Erosion Considerations in Gas Turbine Materials, September 21, 2001.
• Invited Seminar, Ohio State University, Shock interactions in High Speed Flow Aeroacoustic Fields, May 17, 2001.
• Invited Seminar, The American University in Cairo, Engineering Education in the new Millennium, May 9, 2001
• Invited Seminar, The American University in Cairo, Simulations of Engine Flow and Jet Noise, May 2, 2001.
• Invited Seminar, The American University in Cairo, Multi Phase Flow and Engine Performance, April 30, 20, 2001
• Invited Seminar, Zagazig University, Multi- and Single Phase Flow in Propulsion Systems, November 22, 2000.
• Invited Seminar, Pratt & Whitney, Canada, Erosion Prediction in Gas Turbine Engines, April 16, 1999.
• Invited Seminar, Ohio State University, Particulate Flow and Erosion in Gas Turbine Engines, October 1, 1998.
• IBM Lecture, University of Notre Dame, Particulate Flow and Turbomachinery Erosion, February 17, 1998.
• Keynote Paper, Supersonic Nozzle Flow and Performance Predictions for High Speed Propulsion Systems Symposium on Supersonic Jets at the ASME Fluids Engineering Division Summer Meeting, Vancouver, Canada, June 22-26, 1997.
• Invited Paper, Fan/Compressor High Cycle Fatigue Considerations in Future Inlet Distortion Tests, Aircraft Inlet Distortion, Panel Session TP01, 42nd ASME Gas Turbine Congress, Orlando, FL, June 2-5, 1997.
• Invited Speaker, NASA Langley Research Center, Fluidic Injection Research, FLINT Meeting, Nov 20-21, 1996.
• Invited Speaker, Wright Patterson Air Force Base, Flight Dynamics Laboratory, Performance Predictions of Supersonic Nozzles with Thrust Vectoring Jet Injection, September 1996.

• NSF Fluid, Particulate, and Hydraulic Systems Engineering Equipment Proposals Review Panel, 1997.
• ASME Fluids Engineering Division Advisory Board, 1996-Present.
• NASA Propulsion Aeronautics Research & Technology Advisory Committee (PARTS) 1991-present.
• Zonta International: Amelia Earhart Fellowship Committee, 1992-1996.
• NASA Aeronautics SBIR Peer Review Committee, 1995, 1996.
• Ohio Aerospace Institute, Chair, Turbomachinery Tec Net, 1990-1995.

• University of Cincinnati, Faculty Recognition Award, 1996.
• AIAA Awards for Advising Winning Design Teams in the AIAA Airbreathing Propulsion Team Engine Design Competition, 2000, 1999, 1998, 1995, 1994, 1993, 1992, 1991, 1990, and 1988.

• American Institute of Aeronautics and Astronautics, Fellow
• AIAA Air-Breathing Propulsion Technical Committee
• American Society of Mechanical Engineers, Fellow
• Fluids Applications and Systems Committee
• Turbomachinery Committee
• Gas Turbine Education Committee
• Multiphase Flow Committee
• Co-Chair, Seventh International Congress on Fluids Mechanics and Propulsion Congress, Sharm El-Sheikh, Egypt, December 19-22, 2001.
• Co-Chair, Seventh International Symposium on Rotating Machinery, Honolulu, Hawaii, February 22-26, 1998.
• Co-Chair, Sixth International Congress on Fluids Mechanics and Propulsion Congress, Cairo, Egypt, December 29-31, 1996.

• Session Chairman, Nozzles and Thrust Vectoring XV International Symposium on Air Breathing Engines (ISOABE), Bangalore, India , 2-7 September 2001.
• Session Chairman, Centrifugal Compressors XIV International Symposium on Air Breathing Engines (ISOABE), Florence, Italy , 6-11 September 1999.
• Session Chairman, Turbomachinery, the 35th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Los Angeles, CA, June 21-23, 1999.
• Session Chairman, Compressor and Turbine, the 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Cleveland, OH, July 12-15, 1998.
• Session Chairman, "Radial Turbomachinery Aerodynamics, Turbines", ASME TURBO EXPO '98, Stockholm, Sweden, June 2-5, 1998.
• Session Chairman, "Gas Turbines: Engine Systems and Integration," and "General Fluid/Thermal Topics," ISROMAC-7, Honolulu, Hawaii, February 22-26, 1998.
• Session Chairman, "Turbomachinery", the AIAA 36th Aerospace Sciences Meeting, Reno, Nevada, January 12-15, 1998.
• Session Chairman, "Flow Interactions and Turbulence in Turbo-Machinery," XIII International Symposium on Air Breathing Engines, Chattanooga, Tennessee, September 7-12, 1997.
• Session Chairman, "Compressor and Turbine Technologies I," the 33rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Seattle, WA, July 6-9, 1997.
• Session Chairman, "Computational Fluid Dynamics", the AIAA 35th Aerospace Sciences Meeting, Reno, Nevada, January 6-9, 1997.
• Session Chairman, "Turbomachinery 4," the 6th International Congress on Fluid Mechanics and Propulsion, Cairo, Egypt, December 29-31, 1996.
• Session Chairman, "Flow in Rotating Systems," 6th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, Hawaii, February 25-28, 1996.
• Session Chairman, "Compressors/Fans", the AIAA 32nd Aerospace Sciences Meeting, Reno, Nevada, January 15-18, 1996.