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Thomas H. Fletcher
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Journal Articles

Erratum: “Erratum: ‘Time-Dependent Deposition Characteristics of Fine Coal Fly Ash in a Laboratory Gas Turbine Environment’ [ASME J. Turbomach., 2012, 135(2), p. 021003; DOI:10.1115/1.4006639]” [ASME. J. Turbomach., 2017, 139(12), p. 127001; DOI: 10.1115/1.4037911 ]

Robert G. Laycock, Thomas H. Fletcher
Journal: Journal of Turbomachinery
Article Type: Errata
J. Turbomach. April 2018, 140(4): 047001.
Paper No: TURBO-18-1009
DOI: https://doi.org/10.1115/1.4039142
Published Online: February 13, 2018
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Topics: Coal, Film cooling, Fly ash, Gas turbines, Heat transfer
Journal Articles

Erratum: “Time-Dependent Deposition Characteristics of Fine Coal Fly Ash in a Laboratory Gas Turbine Environment” [ASME J. Turbomach., 2012, 135(2), p. 021003; DOI:10.1115/1.4006639]

Robert G. Laycock, Thomas H. Fletcher
Journal: Journal of Turbomachinery
Article Type: Errata
J. Turbomach. December 2017, 139(12): 127001.
Paper No: TURBO-17-1150
DOI: https://doi.org/10.1115/1.4037911
Published Online: October 3, 2017
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Topics: Coal, Film cooling, Fly ash, Gas turbines, Heat transfer, Probability, Temperature
Proceedings Papers

Formation of Deposits From Heavy Fuel Oil Ash in an Accelerated Deposition Facility at Temperatures Up to 1206°C

Robert G. Laycock, Thomas H. Fletcher
Proc. ASME. GT2017, Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration Applications; Organic Rankine Cycle Power Systems, V003T03A004, June 26–30, 2017
Paper No: GT2017-63724
DOI: https://doi.org/10.1115/GT2017-63724
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Topics: Fuel oils, Temperature, Turbines, Particulate matter, Combustion, Exhaust systems, Sulfur, Surface roughness, Combustion chambers, Corrosion
Journal Articles

Independent Effects of Surface and Gas Temperature on Coal Fly Ash Deposition in Gas Turbines at Temperatures up to 1400 °C

Robert Laycock, Thomas H. Fletcher
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2016, 138(2): 021402.
Paper No: GTP-15-1277
DOI: https://doi.org/10.1115/1.4031318
Published Online: September 16, 2015
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Topics: Particulate matter, Surface roughness, Temperature, Gas turbines, Density, Coal, Fly ash
Proceedings Papers

Independent Effects of Surface and Gas Temperature on Coal Flyash Deposition in Gas Turbines at Temperatures Up to 1400°C

Robert Laycock, Thomas H. Fletcher
Proc. ASME. GT2015, Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration, V003T03A010, June 15–19, 2015
Paper No: GT2015-43575
DOI: https://doi.org/10.1115/GT2015-43575
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Topics: Coal, Fly ash, Gas turbines, Temperature, Particulate matter, Integrated gasification combined cycle power stations, Cooling, Alloys, Filters, Gas flow
Journal Articles

Time-Dependent Deposition Characteristics of Fine Coal Fly Ash in a Laboratory Gas Turbine Environment

Robert G. Laycock, Thomas H. Fletcher
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. March 2013, 135(2): 021003.
Paper No: TURBO-11-1241
DOI: https://doi.org/10.1115/1.4006639
Published Online: November 1, 2012
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Topics: Coal, Fly ash, Gas turbines, Particulate matter, Surface roughness, Temperature, Viscosity, Flow (Dynamics)
Proceedings Papers

Time-Dependent Deposition Characteristics of Fine Coal Flyash in a Laboratory Gas Turbine Environment

Robert G. Laycock, Thomas H. Fletcher
Proc. ASME. GT2011, Volume 5: Heat Transfer, Parts A and B, 1709-1717, June 6–10, 2011
Paper No: GT2011-46563
DOI: https://doi.org/10.1115/GT2011-46563
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Topics: Coal, Fly ash, Gas turbines, Temperature, Particulate matter, Turbines, Alloys, Flow (Dynamics), Gas flow, Mach number
Journal Articles

Computational Analysis of Conjugate Heat Transfer and Particulate Deposition on a High Pressure Turbine Vane

Weiguo Ai, Thomas H. Fletcher
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041020.
DOI: https://doi.org/10.1115/1.4003716
Published Online: July 25, 2011
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Topics: Film cooling, Flow (Dynamics), Heat transfer, Particulate matter, Temperature, Simulation, Turbines, Cooling, Turbulence, Coolants
Journal Articles

Effect of Hole Spacing on Deposition of Fine Coal Flyash Near Film Cooling Holes

Weiguo Ai, Nathan Murray, Thomas H. Fletcher, Spencer Harding, Jeffrey P. Bons
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041021.
DOI: https://doi.org/10.1115/1.4003717
Published Online: July 25, 2011
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Topics: Coolants, Cooling, Film cooling, Flow (Dynamics), Fly ash, Metals, Particulate matter, Temperature, Coal, Thermal barrier coatings
Journal Articles

Deposition Near Film Cooling Holes on a High Pressure Turbine Vane

Weiguo Ai, Nathan Murray, Thomas H. Fletcher, Spencer Harding, Scott Lewis, Jeffrey P. Bons
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041013.
DOI: https://doi.org/10.1115/1.4003672
Published Online: July 21, 2011
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Topics: Coolants, Cooling, Film cooling, Flow (Dynamics), Particulate matter, Temperature, Turbines, Coal, Combustion chambers, Combustion
Journal Articles

Film Cooling Effectiveness and Heat Transfer Near Deposit-Laden Film Holes

Scott Lewis, Brett Barker, Jeffrey P. Bons, Weiguo Ai, Thomas H. Fletcher
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2011, 133(3): 031003.
DOI: https://doi.org/10.1115/1.4001190
Published Online: November 11, 2010
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Topics: Film cooling, Heat transfer, Surface roughness, Heat flux, Cooling, Coolants, Flow (Dynamics), Turbines, Convection
Proceedings Papers

Computational Analysis of Conjugate Heat Transfer and Particulate Deposition on a High Pressure Turbine Vane

Weiguo Ai, Thomas H. Fletcher
Proc. ASME. GT2009, Volume 3: Heat Transfer, Parts A and B, 573-585, June 8–12, 2009
Paper No: GT2009-59573
DOI: https://doi.org/10.1115/GT2009-59573
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Topics: Heat transfer, High pressure (Physics), Particulate matter, Turbines, Film cooling, Boundary-value problems, Computation, Computational fluid dynamics, Disks, Flow (Dynamics)
Proceedings Papers

Film Cooling Effectiveness and Heat Transfer Near Deposit-Laden Film Holes

Scott Lewis, Brett Barker, Jeffrey P. Bons, Weiguo Ai, Thomas H. Fletcher
Proc. ASME. GT2009, Volume 3: Heat Transfer, Parts A and B, 539-548, June 8–12, 2009
Paper No: GT2009-59567
DOI: https://doi.org/10.1115/GT2009-59567
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Topics: Film cooling, Heat transfer, Surface roughness
Proceedings Papers

Effect of Hole Spacing on Deposition of Fine Coal Flyash Near Film Cooling Holes

Weiguo Ai, Nathan Murray, Thomas H. Fletcher, Spencer Harding, Jeffrey P. Bons
Proc. ASME. GT2009, Volume 3: Heat Transfer, Parts A and B, 549-559, June 8–12, 2009
Paper No: GT2009-59569
DOI: https://doi.org/10.1115/GT2009-59569
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Topics: Coal, Film cooling, Fly ash, Temperature, Particulate matter, Metals, Surface roughness, Turbines, Combustion chambers, Density
Proceedings Papers

Effect of Particle Size and Trench Configuration on Deposition From Fine Coal Flyash Near Film Cooling Holes

Weiguo Ai, Robert G. Laycock, Devin S. Rappleye, Thomas H. Fletcher, Jeffrey P. Bons
Proc. ASME. GT2009, Volume 3: Heat Transfer, Parts A and B, 561-571, June 8–12, 2009
Paper No: GT2009-59571
DOI: https://doi.org/10.1115/GT2009-59571
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Topics: Coal, Film cooling, Fly ash, Particle size, Particulate matter, Cooling, Temperature, Combustion chambers, Flow (Dynamics), Mach number
Proceedings Papers

Deposition Near Film Cooling Holes on a High Pressure Turbine Vane

Weiguo Ai, Nathan Murray, Thomas H. Fletcher, Spencer Harding, Scott Lewis, Jeffrey P. Bons
Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 825-835, June 9–13, 2008
Paper No: GT2008-50901
DOI: https://doi.org/10.1115/GT2008-50901
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Topics: Film cooling, High pressure (Physics), Turbines
Proceedings Papers

Effects of Particle Size, Gas Temperature and Metal Temperature on High Pressure Turbine Deposition in Land Based Gas Turbines From Various Synfuels

Jared M. Crosby, Scott Lewis, Jeffrey P. Bons, Weiguo Ai, Thomas H. Fletcher
Proc. ASME. GT2007, Volume 4: Turbo Expo 2007, Parts A and B, 1365-1376, May 14–17, 2007
Paper No: GT2007-27531
DOI: https://doi.org/10.1115/GT2007-27531
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Topics: Gas turbines, High pressure (Physics), Metals, Particle size, Synthetic fuels, Temperature, Turbines
Proceedings Papers

Observations of Flame Behavior in a Laboratory-Scale Pre-Mixed Natural Gas/Air Gas Turbine Combustor From PLIF Measurements of OH

Paul O. Hedman, Thomas H. Fletcher, Stewart G. Graham, G. Wayne Timothy, Daniel V. Flores, Jason K. Haslam
Proc. ASME. GT2002, Volume 2: Turbo Expo 2002, Parts A and B, 289-299, June 3–6, 2002
Paper No: GT2002-30052
DOI: https://doi.org/10.1115/GT2002-30052
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Topics: Combustion chambers, Flames, Gas turbines, Natural gas, Ejectors, Fuels, Vortices, Air flow, Density, Fluorescence
Proceedings Papers

Observations of Flame Behavior in a Laboratory-Scale Pre-Mixed Natural Gas/Air Gas Turbine Combustor From LDA Velocity Measurements

Paul O. Hedman, Robert L. Murray, Thomas H. Fletcher
Proc. ASME. GT2002, Volume 2: Turbo Expo 2002, Parts A and B, 301-311, June 3–6, 2002
Paper No: GT2002-30053
DOI: https://doi.org/10.1115/GT2002-30053
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Topics: Combustion chambers, Flames, Gas turbines, Natural gas, Velocity measurement, Density, Fuels
Proceedings Papers

Observations of Flame Behavior in a Laboratory-Scale Pre-Mixed Natural Gas/Air Gas Turbine Combustor From CARS Temperature Measurements

Paul O. Hedman, Daniel V. Flores, Thomas H. Fletcher
Proc. ASME. GT2002, Volume 2: Turbo Expo 2002, Parts A and B, 313-321, June 3–6, 2002
Paper No: GT2002-30054
DOI: https://doi.org/10.1115/GT2002-30054
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Topics: Automobiles, Combustion chambers, Flames, Gas turbines, Natural gas, Temperature measurement, Density, Fuels, Temperature