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K. Dullenkopf
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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

A Theory for Wake-Induced Transition

R. E. Mayle, K. Dullenkopf
Proc. ASME. GT1989, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T08A005, June 4–8, 1989
Publisher: American Society of Mechanical Engineers
Paper No: 89-GT-57
https://doi.org/10.1115/89-GT-57
View Paper titled, A Theory for Wake-Induced Transition
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Topics: Airfoils, Boundary layers, Flat plates, Heat transfer, Turbulence, Wake turbulence, Wakes
Proceedings Papers

More on the Turbulent-Strip Theory for Wake-Induced Transition

R. E. Mayle, K. Dullenkopf
Proc. ASME. GT1990, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A024, June 11–14, 1990
Publisher: American Society of Mechanical Engineers
Paper No: 90-GT-137
https://doi.org/10.1115/90-GT-137
View Paper titled, More on the Turbulent-Strip Theory for Wake-Induced Transition
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Topics: Strips, Turbulence, Wakes, Flow (Dynamics), Boundary layers, Dimensional analysis, Wake turbulence
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

The Effects of Incident Turbulence and Moving Wakes on Laminar Heat Transfer in Gas Turbines

K. Dullenkopf, R. E. Mayle
Proc. ASME. GT1992, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A031, June 1–4, 1992
Publisher: American Society of Mechanical Engineers
Paper No: 92-GT-377
https://doi.org/10.1115/92-GT-377
View Paper titled, The Effects of Incident Turbulence and Moving Wakes on Laminar Heat Transfer in Gas Turbines
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Topics: Gas turbines, Heat transfer, Turbulence, Wakes, Airfoils, Boundary layers, Cross-flow, Cylinders
Proceedings Papers

An Account of Free-Stream-Turbulence Length Scale on Laminar Heat Transfer

K. Dullenkopf, R. E. Mayle
Proc. ASME. GT1994, Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, V004T09A026, June 13–16, 1994
Publisher: American Society of Mechanical Engineers
Paper No: 94-GT-174
https://doi.org/10.1115/94-GT-174
View Paper titled, An Account of Free-Stream-Turbulence Length Scale on Laminar Heat Transfer
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Topics: Heat transfer, Turbulence, Boundary layers, Flow (Dynamics), Stagnation flow
Proceedings Papers

The Turbulence That Matters

R. E. Mayle, K. Dullenkopf, A. Schulz
Proc. ASME. GT1997, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, V001T03A046, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-274
https://doi.org/10.1115/97-GT-274
View Paper titled, The Turbulence That Matters
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Topics: Turbulence, Heat transfer, Reynolds number, Boundary layers, Eddies (Fluid dynamics), Flow (Dynamics), Fluctuations (Physics), Gas turbines, Waves
Proceedings Papers

Numerical Investigation of the Aerodynamic Behaviour of a Compressor Bleed-Air System

V. Peltier, K. Dullenkopf, H.-J. Bauer
Proc. ASME. GT2014, Volume 2A: Turbomachinery, V02AT37A021, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25822
https://doi.org/10.1115/GT2014-25822
View Paper titled, Numerical Investigation of the Aerodynamic Behaviour of a Compressor Bleed-Air System
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Topics: Compressors, Flow (Dynamics), Pressure, Design, Blades, Cooling, Corners (Structural elements), Engine design, Engineering simulation, Engines
Proceedings Papers

Flexible Seal Strip Design for Advanced Labyrinth Seals in Turbines

N. Herrmann, K. Dullenkopf, H.-J. Bauer
Proc. ASME. GT2013, Volume 5B: Oil and Gas Applications; Steam Turbines, V05BT25A035, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-95424
https://doi.org/10.1115/GT2013-95424
View Paper titled, Flexible Seal Strip Design for Advanced Labyrinth Seals in Turbines
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Topics: Design, Strips, Turbines, Leakage, Pressure, Computational fluid dynamics, Discharge coefficient, Geometry, Risk, Wear
Proceedings Papers

Experimental Investigation of the Performance of Different Bleed Air System Designs

V. Peltier, K. Dullenkopf, H.-J. Bauer
Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 9-21, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-68242
https://doi.org/10.1115/GT2012-68242
View Paper titled, Experimental Investigation of the Performance of Different Bleed Air System Designs
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Topics: Compressors, Computational fluid dynamics, Cooling, Databases, Engine design, Engines, Flow (Dynamics), Fluids, Fuel consumption, Manifolds
Proceedings Papers

Design and Validation of a New Test Rig for Brush Seal Testing Under Engine Relevant Conditions

D. Pfefferle, K. Dullenkopf, H.-J. Bauer
Proc. ASME. GT2011, Volume 5: Heat Transfer, Parts A and B, 679-689, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45107
https://doi.org/10.1115/GT2011-45107
View Paper titled, Design and Validation of a New Test Rig for Brush Seal Testing Under Engine Relevant Conditions
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Topics: Design, Engines, Testing, Rotors, Heat, Leakage, Stress, Temperature, Abrasion, Aircraft engines
Proceedings Papers

Investigation of the Influence of Different Rim Seal Geometries in a Low-Pressure Turbine

P. Schuler, K. Dullenkopf, H.-J. Bauer
Proc. ASME. GT2011, Volume 7: Turbomachinery, Parts A, B, and C, 715-729, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45682
https://doi.org/10.1115/GT2011-45682
View Paper titled, Investigation of the Influence of Different Rim Seal Geometries in a Low-Pressure Turbine
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Topics: Pressure, Turbines, Flow (Dynamics), Sealing (Process), Design, Blades, Cascades (Fluid dynamics), Cavities, Gas flow, Boundary layers
Proceedings Papers

The Influence of Different Rim Seal Geometries on Hot-Gas Ingestion and Total Pressure Loss in a Low-Pressure Turbine

P. Schuler, W. Kurz, K. Dullenkopf, H.-J. Bauer
Proc. ASME. GT2010, Volume 7: Turbomachinery, Parts A, B, and C, 1123-1134, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22205
https://doi.org/10.1115/GT2010-22205
View Paper titled, The Influence of Different Rim Seal Geometries on Hot-Gas Ingestion and Total Pressure Loss in a Low-Pressure Turbine
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Topics: Pressure, Turbines, Flow (Dynamics), Geometry, Sealing (Process), Gas flow, Boundary layers, Turbine blades, Blades, Cavities
Proceedings Papers

Interdependence of Discharge Behavior, Swirl Development and Total Temperature Increase in Rotating Labyrinth Seals

J. Denecke, J. Fa¨rber, K. Dullenkopf, H.-J. Bauer
Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 1717-1724, June 9–13, 2008
Publisher: American Society of Mechanical Engineers
Paper No: GT2008-51429
https://doi.org/10.1115/GT2008-51429
View Paper titled, Interdependence of Discharge Behavior, Swirl Development and Total Temperature Increase in Rotating Labyrinth Seals
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Topics: Temperature, Design, Engines, Equilibrium (Physics), Leakage flows, Stators, Aircraft engines, Carbon, Computational fluid dynamics, Gas turbines
Proceedings Papers

An Experimental Study on Droplet Generation in Bearing Chambers Caused by Roller Bearings

P. Gorse, K. Dullenkopf, H.-J. Bauer, S. Wittig
Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 1681-1692, June 9–13, 2008
Publisher: American Society of Mechanical Engineers
Paper No: GT2008-51281
https://doi.org/10.1115/GT2008-51281
View Paper titled, An Experimental Study on Droplet Generation in Bearing Chambers Caused by Roller Bearings
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Topics: Bearings, Drops, Roller bearings, Engines, Aircraft engines, Cooling, Design, Lubrication, Particulate matter, Pipes
Proceedings Papers

Measurement and Analysis of Aerodynamic and Thermodynamic Losses in Pre-Swirl System Arrangements

C. Bricaud, T. Geis, K. Dullenkopf, H.-J. Bauer
Proc. ASME. GT2007, Volume 4: Turbo Expo 2007, Parts A and B, 1115-1126, May 14–17, 2007
Publisher: American Society of Mechanical Engineers
Paper No: GT2007-27191
https://doi.org/10.1115/GT2007-27191
View Paper titled, Measurement and Analysis of Aerodynamic and Thermodynamic Losses in Pre-Swirl System Arrangements
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Topics: Cooling, Discharge coefficient, Flow (Dynamics), Friction, Nozzles, Pressure, Rotors, Stators, Temperature, Temperature measurement
Proceedings Papers

Periodic Velocity Measurements in a Wide and Large Radius Ratio Automotive Torque Converter at the Pump/Turbine Interface

S. O. Kraus, R. Flack, A. Habsieger, G. T. Gillies, K. Dullenkopf
Proc. ASME. FEDSM2002, Volume 2: Symposia and General Papers, Parts A and B, 103-113, July 14–18, 2002
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2002-31162
https://doi.org/10.1115/FEDSM2002-31162
View Paper titled, Periodic Velocity Measurements in a Wide and Large Radius Ratio Automotive Torque Converter at the Pump/Turbine Interface
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Topics: Pump turbines, Torque converters, Velocity measurement, Pumps, Flow (Dynamics), Turbines, Turbine blades, Blades, Cycles, Geometry
Proceedings Papers

3D-LDA Measurements in an Aero-Engine Bearing Chamber

Ph. Gorse, K. Willenborg, S. Busam, J. Ebner, K. Dullenkopf, S. Wittig
Proc. ASME. GT2003, Volume 5: Turbo Expo 2003, Parts A and B, 257-265, June 16–19, 2003
Publisher: American Society of Mechanical Engineers
Paper No: GT2003-38376
https://doi.org/10.1115/GT2003-38376
View Paper titled, 3D-LDA Measurements in an Aero-Engine Bearing Chamber
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Topics: Aircraft engines, Bearings, Flow (Dynamics), Air flow, Drops, Industrial lubrication systems, Laser Doppler anemometry, Lubrication, Pressure, Reliability
Proceedings Papers

Cooling Air Temperature Reduction in a Direct Transfer Preswirl System

T. Geis, M. Dittmann, K. Dullenkopf
Proc. ASME. GT2003, Volume 5: Turbo Expo 2003, Parts A and B, 955-964, June 16–19, 2003
Publisher: American Society of Mechanical Engineers
Paper No: GT2003-38231
https://doi.org/10.1115/GT2003-38231
View Paper titled, Cooling Air Temperature Reduction in a Direct Transfer Preswirl System
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Topics: Cooling, Temperature, Rotors, Stators, Disks, Reynolds number, Air flow, Cavities, Drag (Fluid dynamics), Flow (Dynamics)
Proceedings Papers

Direct-Transfer Preswirl System: A One Dimensional Modular Characterization of the Flow

M. Dittmann, K. Dullenkopf, S. Wittig
Proc. ASME. GT2003, Volume 5: Turbo Expo 2003, Parts A and B, 993-1000, June 16–19, 2003
Publisher: American Society of Mechanical Engineers
Paper No: GT2003-38312
https://doi.org/10.1115/GT2003-38312
View Paper titled, Direct-Transfer Preswirl System: A One Dimensional Modular Characterization of the Flow
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Topics: Flow (Dynamics), Rotors, Cooling, Discharge coefficient, Disks, Nozzles, Blades, Deflection, Gas turbines, High pressure (Physics)