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A. I. Sayma
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Proceedings Papers

Development of a Dynamic Model for Simulating the Transient Behaviour of a Solar-Powered Micro Gas Turbine

S. Shamekhi Amiri, J. Al-Zaili, A. I. Sayma
Proc. ASME. GT2022, Volume 4: Cycle Innovations; Cycle Innovations: Energy Storage, V004T06A001, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-79059
https://doi.org/10.1115/GT2022-79059
View Paper titled, Development of a Dynamic Model for Simulating the Transient Behaviour of a Solar-Powered Micro Gas Turbine
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Topics: Dynamic models, Micro gas turbines, Solar power, Transients (Dynamics)
Proceedings Papers

A Comparative Study of the Control Strategies for Pure Concentrated Solar Power Micro Gas Turbines

M. Ghavami, J. Alzaili, A. I. Sayma
Proc. ASME. GT2017, Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration Applications; Organic Rankine Cycle Power Systems, V003T06A016, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63987
https://doi.org/10.1115/GT2017-63987
View Paper titled, A Comparative Study of the Control Strategies for Pure Concentrated Solar Power Micro Gas Turbines
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Topics: Concentrating solar power, Micro gas turbines, Solar energy, Irradiation (Radiation exposure), Stress, Degrees of freedom, Hybrid control, Power density, Reliability
Proceedings Papers

Rotor-Dynamics of Different Shaft Configurations for a 6 kW Micro Gas Turbine for Concentrated Solar Power

A. Arroyo, M. McLorn, M. Fabian, M. White, A. I. Sayma
Proc. ASME. GT2016, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T23A009, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56479
https://doi.org/10.1115/GT2016-56479
View Paper titled, Rotor-Dynamics of Different Shaft Configurations for a 6 kW Micro Gas Turbine for Concentrated Solar Power
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Topics: Concentrating solar power, Micro gas turbines, Rotordynamics, Finite element analysis, Bearings, Rotors, Combustion, Engines, Fuels, Hammers
Proceedings Papers

Investigating the Effect of Changing the Working Fluid on the Three-Dimensional Flow Within Organic Rankine Cycle Turbines

M. White, A. I. Sayma
Proc. ASME. GT2016, Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T25A002, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56106
https://doi.org/10.1115/GT2016-56106
View Paper titled, Investigating the Effect of Changing the Working Fluid on the Three-Dimensional Flow Within Organic Rankine Cycle Turbines
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Topics: Flow (Dynamics), Fluids, Organic Rankine cycle, Turbines, Design, Blades, Computational fluid dynamics, Economics , Engineering simulation, Regulations
Proceedings Papers

The One-Dimensional Meanline Design of Radial Turbines for Small Scale Low Temperature Organic Rankine Cycles

M. White, A. I. Sayma
Proc. ASME. GT2015, Volume 2C: Turbomachinery, V02CT42A014, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42466
https://doi.org/10.1115/GT2015-42466
View Paper titled, The One-Dimensional Meanline Design of Radial Turbines for Small Scale Low Temperature Organic Rankine Cycles
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Topics: Design, Low temperature, Organic Rankine cycle, Turbines, Flow (Dynamics), Design methodology, Pressure, Rotors, Computational fluid dynamics, Construction
Proceedings Papers

An Integrated Time-Domain Aeroelasticity Model for the Prediction of Fan Forced Response Due to Inlet Distortion

C. Bréard, M. Vahdati, A. I. Sayma, M. Imregun
Proc. ASME. GT2000, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, V004T03A016, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0373
https://doi.org/10.1115/2000-GT-0373
View Paper titled, An Integrated Time-Domain Aeroelasticity Model for the Prediction of Fan Forced Response Due to Inlet Distortion
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Topics: Aeroelasticity, Blades, Damping, Pressure, Boundary-value problems, Computation, Ducts, Fans, Finite element analysis, Fluctuations (Physics)
Proceedings Papers

A Multi-Section Droplet Combustion Model for Spray Combustion Simulation

F. Wang, A. I. Sayma, Z. J. Peng, Y. Huang
Proc. ASME. GT2011, Volume 2: Combustion, Fuels and Emissions, Parts A and B, 7-16, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45023
https://doi.org/10.1115/GT2011-45023
View Paper titled, A Multi-Section Droplet Combustion Model for Spray Combustion Simulation
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Topics: Combustion, Drops, Simulation, Sprays, Flames, Evaporation, Ignition, Reynolds-averaged Navier–Stokes equations, Combustion chambers, Fuels
Proceedings Papers

An Algebraic Sub-Grid Scale Turbulent Combustion Model

F. Wang, F. Leboeuf, Y. Huang, L. X. Zhou, A. I. Sayma
Proc. ASME. GT2010, Volume 2: Combustion, Fuels and Emissions, Parts A and B, 1-8, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22033
https://doi.org/10.1115/GT2010-22033
View Paper titled, An Algebraic Sub-Grid Scale Turbulent Combustion Model
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Topics: Algebra, Combustion, Turbulence, Flames, Buoyancy, Channel flow, Computer simulation, Databases, Methane, Methanol
Journal Articles

A Numerical Study of Labyrinth Seal Flutter

L. di Mare, M. Imregun, J. S. Green, A. I. Sayma
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. April 2010, 132(2): 022201.
https://doi.org/10.1115/1.3204774
Published Online: April 6, 2010
View Article titled, A Numerical Study of Labyrinth Seal Flutter
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Topics: Cavities, Flow (Dynamics), Flutter (Aerodynamics), Pressure, Stability, Steady state, Damping, Aerodynamics, Finite element analysis
Proceedings Papers

Influence of Stagger Angle Variation on Aerodynamic Damping and Frequency Shifts

I. Sladojevic´, A. I. Sayma, M. Imregun
Proc. ASME. GT2007, Volume 5: Turbo Expo 2007, 683-700, May 14–17, 2007
Publisher: American Society of Mechanical Engineers
Paper No: GT2007-28166
https://doi.org/10.1115/GT2007-28166
View Paper titled, Influence of Stagger Angle Variation on Aerodynamic Damping and Frequency Shifts
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Topics: Damping, Blades, Aircraft engines, Mechanical properties, Rotors
Proceedings Papers

A Numerical Investigation of Aeroacoustic Fan Blade Flutter

X. Wu, M. Vahdati, A. I. Sayma, M. Imregun
Proc. ASME. GT2003, Volume 4: Turbo Expo 2003, 357-364, June 16–19, 2003
Publisher: American Society of Mechanical Engineers
Paper No: GT2003-38454
https://doi.org/10.1115/GT2003-38454
View Paper titled, A Numerical Investigation of Aeroacoustic Fan Blade Flutter
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Topics: Blades, Flutter (Aerodynamics), Ducts, Manufacturing, Pressure, Acoustical properties, Aeroelasticity, Flow (Dynamics), Flow separation, Nozzles
Proceedings Papers

Investigation of the Influence of Aerodynamic Coupling on Response Levels of Mistuned Bladed Discs With Weak Structural Coupling

I. Sladojevic´, E. P. Petrov, A. I. Sayma, M. Imregun, J. S. Green
Proc. ASME. GT2005, Volume 4: Turbo Expo 2005, 543-551, June 6–9, 2005
Publisher: American Society of Mechanical Engineers
Paper No: GT2005-69050
https://doi.org/10.1115/GT2005-69050
View Paper titled, Investigation of the Influence of Aerodynamic Coupling on Response Levels of Mistuned Bladed Discs With Weak Structural Coupling
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Topics: Disks, Blades, Aerodynamics, Annulus, Computational fluid dynamics, Finite element analysis, Fluid-dynamic forces, Gaussian distribution, Vibration
Proceedings Papers

Forced Response Variation of Aerodynamically and Structurally Mistuned Turbo-Machinery Rotors

I. Sladojevic´, E. P. Petrov, M. Imregun, A. I. Sayma
Proc. ASME. GT2006, Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B, 961-971, May 8–11, 2006
Publisher: American Society of Mechanical Engineers
Paper No: GT2006-90948
https://doi.org/10.1115/GT2006-90948
View Paper titled, Forced Response Variation of Aerodynamically and Structurally Mistuned Turbo-Machinery Rotors
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Topics: Aircraft engines, Annulus, Blades, Damping, Disks, Elasticity, Finite element model, Flutter (Aerodynamics), Rotors, Turbomachinery
Journal Articles

Multibladerow Forced Response Modeling in Axial-Flow Core Compressors

M. Vahdati, A. I. Sayma, M. Imregun, G. Simpson
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. April 2007, 129(2): 412–420.
https://doi.org/10.1115/1.2436892
Published Online: June 3, 2005
View Article titled, Multibladerow Forced Response Modeling in Axial-Flow Core Compressors
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Topics: Blades, Compressors, Computation, Excitation, Flow (Dynamics), Vibration, Damping, Engines, Stators, Modeling
Journal Articles

On the Use of Atmospheric Boundary Conditions for Axial-Flow Compressor Stall Simulations

M. Vahdati, A. I. Sayma, C. Freeman, M. Imregun
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Article
J. Turbomach. April 2005, 127(2): 349–351.
https://doi.org/10.1115/1.1861912
Published Online: August 27, 2004
View Article titled, On the Use of Atmospheric Boundary Conditions for Axial-Flow Compressor Stall Simulations
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Topics: Axial flow, Blades, Boundary-value problems, Compressors, Nozzles, Simulation, Computational fluid dynamics, Flow (Dynamics), Pressure
Journal Articles

Aeroelasticity Analysis of Air-Riding Seals for Aero-Engine Applications

A. I. Sayma, C. Bre´ard, M. Vahdati, M. Imregun
Journal: Journal of Tribology
Publisher: ASME
Article Type: Technical Papers
J. Tribol. July 2002, 124(3): 607–616.
https://doi.org/10.1115/1.1467086
Published Online: May 31, 2002
View Article titled, Aeroelasticity Analysis of Air-Riding Seals for Aero-Engine Applications
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Topics: Aeroelasticity, Flow (Dynamics), Modeling, Pressure, Aircraft engines, Unsteady flow, Stability
Journal Articles

An Integrated Time-Domain Aeroelasticity Model for the Prediction of Fan Forced Response due to Inlet Distortion

C. Bre´ard, M. Vahdati, A. I. Sayma, M. Imregun
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Technical Papers
J. Eng. Gas Turbines Power. January 2002, 124(1): 196–208.
https://doi.org/10.1115/1.1416151
Published Online: February 1, 2000
View Article titled, An Integrated Time-Domain Aeroelasticity Model for the Prediction of Fan Forced Response due to Inlet Distortion
Open the PDF for An Integrated Time-Domain Aeroelasticity Model for the Prediction of Fan Forced Response due to Inlet Distortion in another window
Topics: Aeroelasticity, Blades, Damping, Flow (Dynamics), Pressure, Vibration, Computation, Resonance, Boundary-value problems