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Proceedings Papers

Effects of Free-Stream Turbulence and Wake Characteristics on the Heat Transfer Along a Cooled Gas Turbine Blade

S. Wittig, A. Schulz, K. Dullenkopf, J. Fairbank
Proc. ASME. GT1988, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A030, June 6–9, 1988
Publisher: American Society of Mechanical Engineers
Paper No: 88-GT-179
https://doi.org/10.1115/88-GT-179
View Paper titled, Effects of Free-Stream Turbulence and Wake Characteristics on the Heat Transfer Along a Cooled Gas Turbine Blade
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Topics: Blades, Gas turbines, Heat transfer, Turbulence, Wakes, Cross-flow, Airfoils, Generators, Modeling, Unsteady flow
Proceedings Papers

The Effect of Incident Wake Conditions on the Mean Heat Transfer of an Airfoil

K. Dullenkopf, A. Schulz, S. Wittig
Proc. ASME. GT1990, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A023, June 11–14, 1990
Publisher: American Society of Mechanical Engineers
Paper No: 90-GT-121
https://doi.org/10.1115/90-GT-121
View Paper titled, The Effect of Incident Wake Conditions on the Mean Heat Transfer of an Airfoil
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Topics: Airfoils, Heat transfer, Wakes, Cascades (Fluid dynamics), Blades, Flow (Dynamics), Boundary layers, Cross-flow, Cylinders, Generators
Proceedings Papers

Design of Ceramic Gas Turbine Components

G. Stürmer, M. Fundus, A. Schulz, S. Wittig
Proc. ASME. GT1990, Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery, V002T04A002, June 11–14, 1990
Publisher: American Society of Mechanical Engineers
Paper No: 90-GT-048
https://doi.org/10.1115/90-GT-048
View Paper titled, Design of Ceramic Gas Turbine Components
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Topics: Ceramics, Design, Gas turbines, Finite element analysis, Industrial ceramics, Combustion chambers, Fracture (Materials), Fracture (Process), Probability, Reliability
Proceedings Papers

Principles of the ITS Ceramic Research Combustor Design: Segmented Flame Tube and Staged Combustion

A. Pfeiffer, A. Schulz, S. Wittig
Proc. ASME. GT1991, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General, V005T18A001, June 3–6, 1991
Publisher: American Society of Mechanical Engineers
Paper No: 91-GT-063
https://doi.org/10.1115/91-GT-063
View Paper titled, Principles of the ITS Ceramic Research Combustor Design: Segmented Flame Tube and Staged Combustion
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Topics: Ceramics, Combustion, Combustion chambers, Design, Flames, Fuels, Industrial ceramics, Durability, Emissions, Engines
Proceedings Papers

Life Time Prediction for Ceramic Gas Turbine Components

G. Stürmer, A. Schulz, S. Wittig
Proc. ASME. GT1991, Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery, V002T04A001, June 3–6, 1991
Publisher: American Society of Mechanical Engineers
Paper No: 91-GT-096
https://doi.org/10.1115/91-GT-096
View Paper titled, Life Time Prediction for Ceramic Gas Turbine Components
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Topics: Ceramics, Gas turbines, Failure, Fracture (Materials), Industrial ceramics, Probability, Stress, Combustion chambers, Computers, Event history analysis
Proceedings Papers

Film Cooling Effectiveness and Heat Transfer Coefficients for Slot Injection at High Blowing Ratios

G. Bittlinger, A. Schulz, S. Wittig
Proc. ASME. GT1994, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A032, June 13–16, 1994
Publisher: American Society of Mechanical Engineers
Paper No: 94-GT-182
https://doi.org/10.1115/94-GT-182
View Paper titled, Film Cooling Effectiveness and Heat Transfer Coefficients for Slot Injection at High Blowing Ratios
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Topics: Film cooling, Heat transfer coefficients, Heat transfer, Databases, Combustion chambers, Computer simulation, Flow (Dynamics), Temperature profiles, Testing, Wall temperature
Proceedings Papers

Comparison of Calculated and Measured Heat Transfer Coefficients for Transonic and Supersonic Boundary-Layer Flows

C. Hürst, A. Schulz, S. Wittig
Proc. ASME. GT1994, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A025, June 13–16, 1994
Publisher: American Society of Mechanical Engineers
Paper No: 94-GT-173
https://doi.org/10.1115/94-GT-173
View Paper titled, Comparison of Calculated and Measured Heat Transfer Coefficients for Transonic and Supersonic Boundary-Layer Flows
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Topics: Boundary layers, Flow (Dynamics), Heat transfer coefficients, Nozzles, Heat transfer, Reynolds number, Turbulence, Boundary-value problems, Compressibility, Coolants
Proceedings Papers

Mechanisms of Coke Formation in Gas Turbine Combustion Chambers

M. Brandauer, A. Schulz, S. Wittig
Proc. ASME. GT1995, Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V003T06A005, June 5–8, 1995
Publisher: American Society of Mechanical Engineers
Paper No: 95-GT-049
https://doi.org/10.1115/95-GT-049
View Paper titled, Mechanisms of Coke Formation in Gas Turbine Combustion Chambers
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Topics: Coke, Combustion chambers, Gas turbines, Fuels, Drops, Chemical reactions, Emissions, Flames, Nitrogen oxides, Oxygen
Proceedings Papers

The Path to Predicting Bypass Transition

R. E. Mayle, A. Schulz
Proc. ASME. GT1996, Volume 1: Turbomachinery, V001T01A065, June 10–13, 1996
Publisher: American Society of Mechanical Engineers
Paper No: 96-GT-199
https://doi.org/10.1115/96-GT-199
View Paper titled, The Path to Predicting Bypass Transition
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Topics: Boundary layers, Computers, Energy dissipation, Fluctuations (Physics), Kinetic energy, Turbulence
Proceedings Papers

Transonic Film-Cooling Investigations: Effects of Hole Shapes and Orientations

S. Wittig, A. Schulz, M. Gritsch, K. A. Thole
Proc. ASME. GT1996, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A026, June 10–13, 1996
Publisher: American Society of Mechanical Engineers
Paper No: 96-GT-222
https://doi.org/10.1115/96-GT-222
View Paper titled, Transonic Film-Cooling Investigations: Effects of Hole Shapes and Orientations
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Topics: Film cooling, Shapes, Coolants, Design, Discharge coefficient, Fluids, Heat transfer coefficients, Mach number, Momentum, Rotation
Proceedings Papers

Flowfield Measurements for Film-Cooling Holes With Expanded Exits

K. Thole, M. Gritsch, A. Schulz, S. Wittig
Proc. ASME. GT1996, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A010, June 10–13, 1996
Publisher: American Society of Mechanical Engineers
Paper No: 96-GT-174
https://doi.org/10.1115/96-GT-174
View Paper titled, Flowfield Measurements for Film-Cooling Holes With Expanded Exits
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Topics: Film cooling, Cooling, Turbulence, Geometry, Mach number, Blades, Coolants, Density, Gas turbines, Shear (Mechanics)
Proceedings Papers

A New Approach for a Low-Cooled Ceramic Nozzle Vane

C. Gutmann, A. Schulz, S. Wittig
Proc. ASME. GT1996, Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; General, V005T13A001, June 10–13, 1996
Publisher: American Society of Mechanical Engineers
Paper No: 96-GT-232
https://doi.org/10.1115/96-GT-232
View Paper titled, A New Approach for a Low-Cooled Ceramic Nozzle Vane
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Topics: Ceramics, Nozzles, Stress, Design, Optimization, Failure, Gas flow, Gas turbines, Geometry, Industrial ceramics
Proceedings Papers

Evaluation of a New Design Concept for a Ceramic Flame Tube Under Engine Conditions

S. Münz, A. Schulz, S. Wittig
Proc. ASME. GT1996, Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery, V002T04A013, June 10–13, 1996
Publisher: American Society of Mechanical Engineers
Paper No: 96-GT-498
https://doi.org/10.1115/96-GT-498
View Paper titled, Evaluation of a New Design Concept for a Ceramic Flame Tube Under Engine Conditions
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Topics: Ceramics, Design, Engines, Flames, Gas turbines, Combustion chambers, Stress, Failure, Image segmentation, Thermal insulation
Proceedings Papers

Influence of a Mixing-Jet on Film Cooling

M. Martiny, A. Schulz, S. Wittig, M. Dilzer
Proc. ASME. GT1997, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, V001T03A043, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-247
https://doi.org/10.1115/97-GT-247
View Paper titled, Influence of a Mixing-Jet on Film Cooling
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Topics: Film cooling, Cooling, Experimental analysis, Flow (Dynamics), Flow visualization, Heat transfer coefficients, Momentum, Thermography
Proceedings Papers

Experimental Assessment of Fiber Reinforced Ceramics for Combustor Walls

D. Filsinger, S. Münz, A. Schulz, S. Wittig, G. Andrees
Proc. ASME. GT1997, Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award, V004T13A002, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-154
https://doi.org/10.1115/97-GT-154
View Paper titled, Experimental Assessment of Fiber Reinforced Ceramics for Combustor Walls
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Topics: Combustion chambers, Fiber reinforced ceramics, Gas turbines, Oxidation, Ceramics, Composite materials, Flames, Gas flow, High temperature, Brittleness
Proceedings Papers

Film-Cooling From Holes With Expanded Exits: A Comparison of Computational Results With Experiments

D. Giebert, M. Gritsch, A. Schulz, S. Wittig
Proc. ASME. GT1997, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T09A028, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-163
https://doi.org/10.1115/97-GT-163
View Paper titled, Film-Cooling From Holes With Expanded Exits: A Comparison of Computational Results With Experiments
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Topics: Film cooling, Density, Turbulence, Flow (Dynamics), Shear (Mechanics)
Proceedings Papers

Adiabatic Wall Effectiveness Measurements of Film-Cooling Holes With Expanded Exits

M. Gritsch, A. Schulz, S. Wittig
Proc. ASME. GT1997, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T09A029, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-164
https://doi.org/10.1115/97-GT-164
View Paper titled, Adiabatic Wall Effectiveness Measurements of Film-Cooling Holes With Expanded Exits
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Topics: Film cooling, Coolants, Mach number, Cooling, Diffusers, Flow (Dynamics), Temperature
Proceedings Papers

Discharge Coefficient Measurements of Film-Cooling Holes With Expanded Exits

M. Gritsch, A. Schulz, S. Wittig
Proc. ASME. GT1997, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T09A030, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-165
https://doi.org/10.1115/97-GT-165
View Paper titled, Discharge Coefficient Measurements of Film-Cooling Holes With Expanded Exits
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Topics: Discharge coefficient, Film cooling, Flow (Dynamics), Pressure, Mach number, Diffusers
Proceedings Papers

Mathematical Model Describing the Coupled Heat Transfer in Effusion Cooled Combustor Walls

M. Martiny, A. Schulz, S. Wittig
Proc. ASME. GT1997, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T09A065, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-329
https://doi.org/10.1115/97-GT-329
View Paper titled, Mathematical Model Describing the Coupled Heat Transfer in Effusion Cooled Combustor Walls
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Topics: Combustion chambers, Heat transfer, Temperature, Coolants, Heat, Film cooling
Proceedings Papers

An Overall Correlation of Film Cooling Effectiveness From One Row of Holes

S. Baldauf, A. Schulz, S. Wittig, Michael Scheurlen
Proc. ASME. GT1997, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T09A010, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-079
https://doi.org/10.1115/97-GT-079
View Paper titled, An Overall Correlation of Film Cooling Effectiveness From One Row of Holes
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Topics: Film cooling, Flow (Dynamics), Cooling, Damping, Errors, Film flow, Flat plates