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Proceedings Papers

Experimental Investigation of Gas-Particle Flow Trajectories and Velocities in an Axial Flow Turbine Stage

W. Tabakoff, A. Hamed, M. F. Hussein
Proc. ASME. GT1972, ASME 1972 International Gas Turbine and Fluids Engineering Conference and Products Show, V001T01A056, March 26–30, 1972
Publisher: American Society of Mechanical Engineers
Paper No: 72-GT-57
https://doi.org/10.1115/72-GT-57
View Paper titled, Experimental Investigation of Gas-Particle Flow Trajectories and Velocities in an Axial Flow Turbine Stage
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Topics: Axial flow, Flow (Dynamics), Particulate matter, Turbines, Pressure, Blades, Cascades (Fluid dynamics), Photography, Theoretical analysis, Tunnels
Proceedings Papers

Erosion Study in Turbomachinery Affected by Coal Ash Particles

W. Tabakoff, R. Kotwal, A. Hamed
Proc. ASME. GT1978, Volume 1B: General, V01BT02A036, April 9–13, 1978
Publisher: American Society of Mechanical Engineers
Paper No: 78-GT-136
https://doi.org/10.1115/78-GT-136
View Paper titled, Erosion Study in Turbomachinery Affected by Coal Ash Particles
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Topics: Coal, Erosion, Particulate matter, Turbomachinery, Alloys, Aluminum, Fuels, Machinery, Stainless steel, Test facilities
Proceedings Papers

Cooling Considerations for Design of a Radial Inflow Turbine

A. Hamed, Y. Sheoran, W. Tabakoff
Proc. ASME. GT1977, ASME 1977 International Gas Turbine Conference and Products Show, V001T01A080, March 27–31, 1977
Publisher: American Society of Mechanical Engineers
Paper No: 77-GT-82
https://doi.org/10.1115/77-GT-82
View Paper titled, Cooling Considerations for Design of a Radial Inflow Turbine
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Topics: Cooling, Design, Inflow, Turbines, Rotors, Computation, Computers, Coolants, Stress, Temperature
Proceedings Papers

Computation of the Temperature Distribution in Cooled Radial Inflow Turbine Guide Vanes

W. Tabakoff, W. Hosny, A. Hamed
Proc. ASME. GT1977, ASME 1977 International Gas Turbine Conference and Products Show, V001T01A081, March 27–31, 1977
Publisher: American Society of Mechanical Engineers
Paper No: 77-GT-83
https://doi.org/10.1115/77-GT-83
View Paper titled, Computation of the Temperature Distribution in Cooled Radial Inflow Turbine Guide Vanes
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Topics: Computation, Guide vanes, Inflow, Temperature distribution, Turbines, Cooling, Blades, Computer software, Computers, Convection
Proceedings Papers

The Elliptic Solution of the Secondary Flow Problem

S. Abdallah, A. Hamed
Proc. ASME. GT1982, Volume 1: Turbomachinery, V001T01A083, April 18–22, 1982
Publisher: American Society of Mechanical Engineers
Paper No: 82-GT-242
https://doi.org/10.1115/82-GT-242
View Paper titled, The Elliptic Solution of the Secondary Flow Problem
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Topics: Flow (Dynamics), Boundary-value problems, Ducts, Inviscid flow, Pressure, Vorticity
Proceedings Papers

Improved Particle Trajectory Calculations Through Turbomachinery Affected by Coal Ash Particles

B. Beecher, W. Tabakoff, A. Hamed
Proc. ASME. GT1981, Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V002T05A002, March 9–12, 1981
Publisher: American Society of Mechanical Engineers
Paper No: 81-GT-53
https://doi.org/10.1115/81-GT-53
View Paper titled, Improved Particle Trajectory Calculations Through Turbomachinery Affected by Coal Ash Particles
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Topics: Coal, Particulate matter, Trajectories (Physics), Turbomachinery, Blades, Flow (Dynamics), Geometry, Airfoils, Chords (Trusses), Computers
Proceedings Papers

Erosion Pattern of Twisted Blades by Particle Laden Flows

A. Hamed, S. Fowler
Proc. ASME. GT1983, Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V003T05A014, March 27–31, 1983
Publisher: American Society of Mechanical Engineers
Paper No: 83-GT-214
https://doi.org/10.1115/83-GT-214
View Paper titled, Erosion Pattern of Twisted Blades by Particle Laden Flows
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Topics: Blades, Erosion, Flow (Dynamics), Particulate matter, Stators, Trajectories (Physics), Turbomachinery
Proceedings Papers

The Dynamics of Suspended Solid Particles in a Two Stage Gas Turbine

W. Tabakoff, A. Hamed
Proc. ASME. GT1986, Volume 1: Turbomachinery, V001T01A100, June 8–12, 1986
Publisher: American Society of Mechanical Engineers
Paper No: 86-GT-232
https://doi.org/10.1115/86-GT-232
View Paper titled, The Dynamics of Suspended Solid Particles in a Two Stage Gas Turbine
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Topics: Dynamics (Mechanics), Gas turbines, Particulate matter, Erosion, Turbine blades, Blades, Flow (Dynamics), Turbines, Coal, Collisions (Physics)
Proceedings Papers

Turbine Erosion Exposed to Particulate Flow

A. Hamed, W. Tabakoff, M. L. Mansour
Proc. ASME. GT1986, Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V003T05A003, June 8–12, 1986
Publisher: American Society of Mechanical Engineers
Paper No: 86-GT-258
https://doi.org/10.1115/86-GT-258
View Paper titled, Turbine Erosion Exposed to Particulate Flow
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Topics: Erosion, Flow (Dynamics), Particulate matter, Turbines, Blades, Axial flow, Computation, Gas turbines, Rotors, Trajectories (Physics)
Proceedings Papers

Effect of Particle Size Distribution on Particle Dynamics and Blade Erosion in Axial Flow Turbines

W. Tabakoff, A. Hamed, M. Metwally
Proc. ASME. GT1990, Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V003T05A005, June 11–14, 1990
Publisher: American Society of Mechanical Engineers
Paper No: 90-GT-114
https://doi.org/10.1115/90-GT-114
View Paper titled, Effect of Particle Size Distribution on Particle Dynamics and Blade Erosion in Axial Flow Turbines
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Topics: Axial flow, Blades, Erosion, Particle dynamics, Particle size, Turbines, Particulate matter, Coal, Gas turbines, Trajectories (Physics)
Proceedings Papers

High Temperature Erosion Resistance of Coatings for Gas Turbine

W. Tabakoff, A. Hamed, M. Metwally, M. Pasin
Proc. ASME. GT1991, Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V003T05A007, June 3–6, 1991
Publisher: American Society of Mechanical Engineers
Paper No: 91-GT-213
https://doi.org/10.1115/91-GT-213
View Paper titled, High Temperature Erosion Resistance of Coatings for Gas Turbine
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Topics: Coatings, Erosion, Gas turbines, High temperature, Particulate matter, Superalloys, Weight (Mass), Temperature, Coal, Flow (Dynamics)
Proceedings Papers

An Investigation in the Variance in Particle Surface Interactions and Their Effects in Gas Turbines

A. Hamed, W. Tabakoff
Proc. ASME. GT1991, Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V003T05A015, June 3–6, 1991
Publisher: American Society of Mechanical Engineers
Paper No: 91-GT-380
https://doi.org/10.1115/91-GT-380
View Paper titled, An Investigation in the Variance in Particle Surface Interactions and Their Effects in Gas Turbines
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Topics: Gas turbines, Particulate matter, Particle dynamics, Axial flow, Blades, Erosion, Computation, Engineering simulation, Laser Doppler anemometry, Simulation
Proceedings Papers

An Automotive Gas Turbine Engine Blade Erosion

M. Metwally, W. Tabakoff, A. Hamed
Proc. ASME. GT1992, Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V003T05A012, June 1–4, 1992
Publisher: American Society of Mechanical Engineers
Paper No: 92-GT-344
https://doi.org/10.1115/92-GT-344
View Paper titled, An Automotive Gas Turbine Engine Blade Erosion
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Topics: Automotive gas turbines, Blades, Engines, Erosion, Particulate matter, Flow (Dynamics), Particle collisions, Trajectories (Physics), Turbines, Automotive engines
Proceedings Papers

Hypersonic Flow Separation in Shock Wave Boundary Layer Interactions

A. Hamed, Ajay Kumar
Proc. ASME. GT1992, Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery, V002T02A008, June 1–4, 1992
Publisher: American Society of Mechanical Engineers
Paper No: 92-GT-205
https://doi.org/10.1115/92-GT-205
View Paper titled, Hypersonic Flow Separation in Shock Wave Boundary Layer Interactions
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Topics: Boundary layers, Hypersonic flow, Separation (Technology), Shock waves, Boundary layer turbulence, Compression, Cooling, Corners (Structural elements), Cylinders, Databases
Proceedings Papers

High Temperature Coatings for Protection Against Turbine Deterioration

W. Tabakoff, M. Metwally, A. Hamed
Proc. ASME. GT1993, Volume 3A: General, V03AT15A051, May 24–27, 1993
Publisher: American Society of Mechanical Engineers
Paper No: 93-GT-200
https://doi.org/10.1115/93-GT-200
View Paper titled, High Temperature Coatings for Protection Against Turbine Deterioration
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Topics: Coatings, High temperature, Turbines, Erosion, Alloys, Fly ash, Particulate matter, Protective coatings, Steam turbines, Temperature
Proceedings Papers

Navier-Stokes Computations for Turbulent Flow Predictions in Transonic Turbine Cascade Using a Zonal Approach

J. J. Yeuan, A. Hamed, W. Tabakoff
Proc. ASME. GT1993, Volume 3A: General, V03AT15A091, May 24–27, 1993
Publisher: American Society of Mechanical Engineers
Paper No: 93-GT-240
https://doi.org/10.1115/93-GT-240
View Paper titled, Navier-Stokes Computations for Turbulent Flow Predictions in Transonic Turbine Cascade Using a Zonal Approach
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Topics: Cascades (Fluid dynamics), Computation, Turbines, Turbulence, Algebra, Errors, Flow (Dynamics), Interpolation, Turbine blades, Viscous flow
Proceedings Papers

Assessment of Partially Averaged Navier Stokes (PANS) Multiscale Model in Transonic Turbulent Separated Flows

D. Basu, A. Hamed, K. Das
Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 1451-1459, July 30–August 2, 2007
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2007-37630
https://doi.org/10.1115/FEDSM2007-37630
View Paper titled, Assessment of Partially Averaged Navier Stokes (PANS) Multiscale Model in Transonic Turbulent Separated Flows
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Topics: Flow (Dynamics), Turbulence, Cavities, Kinetic energy, Spectra (Spectroscopy), Acoustics, Engineering simulation, Fluctuations (Physics), Pressure, Simulation
Proceedings Papers

Characterization of Powered Resonance Tube for High Frequency Actuation

A. Hamed, K. Das, D. Basu
Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 1043-1048, July 6–10, 2003
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2003-45472
https://doi.org/10.1115/FEDSM2003-45472
View Paper titled, Characterization of Powered Resonance Tube for High Frequency Actuation
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Topics: Resonance, Pressure, Flow (Dynamics), Fluctuations (Physics), Geometry, Oscillations, Separation (Technology), Sound pressure, Spectra (Spectroscopy), Unsteady flow
Proceedings Papers

Effect of Reynolds Number on the Unsteady Flow and Acoustic Fields of Supersonic Cavity

A. Hamed, D. Basu, K. Das
Proc. ASME. FEDSM2003, Volume 2: Symposia, Parts A, B, and C, 1049-1054, July 6–10, 2003
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2003-45473
https://doi.org/10.1115/FEDSM2003-45473
View Paper titled, Effect of Reynolds Number on the Unsteady Flow and Acoustic Fields of Supersonic Cavity
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Topics: Acoustics, Cavities, Reynolds number, Unsteady flow, Sound pressure, Turbulence, Computer simulation, Eddies (Fluid dynamics), Engineering simulation, Flow (Dynamics)
Proceedings Papers

Turbine Blade Surface Deterioration by Erosion

Awatef A. Hamed, Widen Tabakoff, Richard B. Rivir, Kaushik Das, Puneet Arora
Proc. ASME. GT2004, Volume 2: Turbo Expo 2004, 329-337, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-54328
https://doi.org/10.1115/GT2004-54328
View Paper titled, Turbine Blade Surface Deterioration by Erosion
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Topics: Erosion, Gas turbines, Surface roughness, Turbine blades