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Proceedings Papers

Theoretical Study on the Origin of Radial Cracks in Labyrinth Seal Fins due to Rubbing

Tim Pychynski, Klaus Dullenkopf, Hans-Jörg Bauer

Proc. ASME. GT2013, Volume 7A: Structures and Dynamics, V07AT27A006, June 3–7, 2013

Paper No: GT2013-94834

DOI: https://doi.org/10.1115/GT2013-94834

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Topics: Fins, Fracture (Materials), Pressure, Cracking (Materials), Fracture (Process), Friction, Heat flux, Thermomechanics, Computer simulation, Finite element model

Proceedings Papers

Capacitive Film Thickness Measurements in a Ventless Aero-Engine Bearing Chamber: Influence of Operating Conditions and Offtake Design

Wolfram Kurz, Klaus Dullenkopf, Hans-Jörg Bauer

Proc. ASME. GT2013, Volume 2: Aircraft Engine; Coal, Biomass and Alternative Fuels; Cycle Innovations, V002T01A016, June 3–7, 2013

Paper No: GT2013-94973

DOI: https://doi.org/10.1115/GT2013-94973

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Topics: Aircraft engines, Bearings, Design, Film thickness, Pressure, Air flow, Flow (Dynamics), Momentum, Sensors

Journal Articles

Capacitive Film Thickness Measurements in a Ventless Aero-Engine Bearing Chamber—Influence of Operating Conditions and Offtake Design

Wolfram Kurz, Klaus Dullenkopf, Hans-Jörg Bauer

J. Eng. Gas Turbines Power. November 2013, 135(11): 112504.

Paper No: GTP-13-1204

DOI: https://doi.org/10.1115/1.4025067

Published Online: September 17, 2013

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Topics: Air flow, Bearings, Film thickness, Flow (Dynamics), Design, Pressure

Proceedings Papers

Optimization of Labyrinth Seal Performance Combining Experimental, Numerical and Data Mining Methods

Erik Braun, Klaus Dullenkopf, Hans-Jörg Bauer

Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 1847-1854, June 11–15, 2012

Paper No: GT2012-68077

DOI: https://doi.org/10.1115/GT2012-68077

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Topics: Data mining, Optimization, Databases, Discharge coefficient, Fins, Accuracy and precision, Engines, Flow (Dynamics), Geometry, Leakage

Proceedings Papers

Influences on the Oil Split Between the Offtakes of an Aero-Engine Bearing Chamber

Wolfram Kurz, Klaus Dullenkopf, Hans-Jörg Bauer

Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 2251-2259, June 11–15, 2012

Paper No: GT2012-69412

DOI: https://doi.org/10.1115/GT2012-69412

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Topics: Aircraft engines, Bearings, Film thickness, Vents, Sensors

Proceedings Papers

Simple Particle Separator for the Secondary Air System of Gas Turbines

Natalia García Víllora, Klaus Dullenkopf, Hans-Jörg Bauer, Cyrille Bricaud, Thomas Zierer

Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 2085-2096, June 11–15, 2012

Paper No: GT2012-68831

DOI: https://doi.org/10.1115/GT2012-68831

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Topics: Gas turbines, Particulate matter, Design, Separation (Technology), Compressors, Cooling, Flow (Dynamics), Modeling, Turbulence, Aircraft engines

Proceedings Papers

Validation of CFD and Coupled Fluid-Solid Modelling for a Direct Transfer Pre-Swirl System

Umesh Javiya, John Chew, Nick Hills, Klaus Dullenkopf, Timothy Scanlon

Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 2179-2190, June 11–15, 2012

Paper No: GT2012-69056

DOI: https://doi.org/10.1115/GT2012-69056

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Topics: Computational fluid dynamics, Fluids, Modeling, Disks, Temperature, Rotors, Heat transfer coefficients, Cooling, Heat conduction, Metals

Proceedings Papers

Active Outer Ring Cooling of High Loaded and High Speed Ball Bearings

Michael Flouros, Markus Hirschmann, Francois Cottier, Peter Gloeckner, Klaus Dullenkopf

Proc. ASME. GT2012, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation, 1-8, June 11–15, 2012

Paper No: GT2012-68138

DOI: https://doi.org/10.1115/GT2012-68138

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Topics: Ball bearings, Cooling, Bearings, Heat, Aircraft engines, Centrifugal force, Design, Fins, Flow (Dynamics), Friction

Journal Articles

Active Outer Ring Cooling of High-Loaded and High-Speed Ball Bearings

Michael Flouros, Markus Hirschmann, Francois Cottier, Peter Gloeckner, Klaus Dullenkopf

J. Eng. Gas Turbines Power. August 2013, 135(8): 081902.

Paper No: GTP-13-1062

DOI: https://doi.org/10.1115/1.4024257

Published Online: June 24, 2013

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Topics: Ball bearings, Bearings, Cooling, Flow (Dynamics), Temperature, Heat, Heat transfer

Journal Articles

Evaluation of Computational Fluid Dynamics and Coupled Fluid-Solid Modeling for a Direct Transfer Preswirl System

Umesh Javiya, John Chew, Nick Hills, Klaus Dullenkopf, Timothy Scanlon

J. Eng. Gas Turbines Power. May 2013, 135(5): 051501.

Paper No: GTP-12-1214

DOI: https://doi.org/10.1115/1.4007752

Published Online: April 18, 2013

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Topics: Computational fluid dynamics, Disks, Flow (Dynamics), Heat transfer, Modeling, Nozzles, Rotors, Temperature, Fluids

Proceedings Papers

Experimental Investigation of Lubrication Oil Film Dynamics in a Typical Aero-Engine Bearing Chamber Environment

Amir A. Hashmi, Klaus Dullenkopf, Hans-Jo¨rg Bauer, Michael Klingsporn

Proc. ASME. GT2011, Volume 5: Heat Transfer, Parts A and B, 797-807, June 6–10, 2011

Paper No: GT2011-45545

DOI: https://doi.org/10.1115/GT2011-45545

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Topics: Aircraft engines, Bearings, Dynamics (Mechanics), Lubrication, Drops, Film flow, Gas flow, Die cutting, Engines, Flow (Dynamics)

Proceedings Papers

Modelling of an Aero-Engine Bearing Chamber Using Enhanced CFD Technique

Davide Peduto, Amir A. Hashmi, Klaus Dullenkopf, Hans-Jo¨rg Bauer, Herve Morvan

Proc. ASME. GT2011, Volume 5: Heat Transfer, Parts A and B, 809-819, June 6–10, 2011

Paper No: GT2011-45635

DOI: https://doi.org/10.1115/GT2011-45635

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Topics: Aircraft engines, Bearings, Computational fluid dynamics, Modeling, Turbulence, Simulation results, Drops, Dynamics (Mechanics), Engines, Film flow

Proceedings Papers

Separation of Particles in the Secondary Air System of Gas Turbines

Natalia Garci´a Vi´llora, Klaus Dullenkopf, Hans-Jo¨rg Bauer

Proc. ASME. GT2011, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Wind Turbine Technology, 25-37, June 6–10, 2011

Paper No: GT2011-45080

DOI: https://doi.org/10.1115/GT2011-45080

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Topics: Gas turbines, Particulate matter, Separation (Technology), Aircraft engines, Cavities, Cooling systems, Density, Drag (Fluid dynamics), Engines, Film cooling

Journal Articles

Direct Outer Ring Cooling of a High Speed Jet Engine Mainshaft Ball Bearing: Experimental Investigation Results

Peter Gloeckner, Klaus Dullenkopf, Michael Flouros

J. Eng. Gas Turbines Power. June 2011, 133(6): 062503.

DOI: https://doi.org/10.1115/1.4002355

Published Online: February 17, 2011

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Topics: Ball bearings, Bearings, Cooling, Flow (Dynamics), Temperature, Jet engines, Stress, Heat

Proceedings Papers

CFD Methods for Shear Driven Liquid Wall Films

Amir A. Hashmi, Klaus Dullenkopf, Rainer Koch, Hans-Jo¨rg Bauer

Proc. ASME. GT2010, Volume 4: Heat Transfer, Parts A and B, 1283-1291, June 14–18, 2010

Paper No: GT2010-23532

DOI: https://doi.org/10.1115/GT2010-23532

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Topics: Computational fluid dynamics, Shear (Mechanics), Flow (Dynamics), Multiphase flow, Aircraft engines, Bearings, Boundary-value problems, Combustion chambers, Drops, Ducts

Proceedings Papers

Modelling the Labyrinth Seal Discharge Coefficient Using Data Mining Methods

Tim Pychynski, Klaus Dullenkopf, Hans-Jo¨rg Bauer, Ralf Mikut

Proc. ASME. GT2010, Volume 4: Heat Transfer, Parts A and B, 1013-1023, June 14–18, 2010

Paper No: GT2010-22661

DOI: https://doi.org/10.1115/GT2010-22661

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Topics: Data mining, Discharge coefficient, Modeling, Artificial neural networks, Databases, Design, Leakage, Algorithms, Computer software, Leakage flows

Proceedings Papers

Direct Outer Ring Cooling of a High Speed Jet Engine Mainshaft Ball Bearing: Experimental Investigation Results

Peter Gloeckner, Klaus Dullenkopf, Michael Flouros

Proc. ASME. GT2010, Volume 4: Heat Transfer, Parts A and B, 1209-1216, June 14–18, 2010

Paper No: GT2010-23312

DOI: https://doi.org/10.1115/GT2010-23312

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Topics: Ball bearings, Cooling, Jet engines, Bearings, Aircraft propulsion, Energy dissipation, Flight, Reliability, Stress, Temperature

Proceedings Papers

Influence of Honeycomb Facings on the Temperature Distribution of Labyrinth Seals

Tina Weinberger, Klaus Dullenkopf, Hans-Jo¨rg Bauer

Proc. ASME. GT2010, Volume 4: Heat Transfer, Parts A and B, 921-930, June 14–18, 2010

Paper No: GT2010-22069

DOI: https://doi.org/10.1115/GT2010-22069

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Topics: Foundry coatings, Honeycomb structures, Temperature distribution

Proceedings Papers

Internal Air Systems Experimental Rig Best Practice

Peter Childs, Klaus Dullenkopf, Dieter Bohn

Proc. ASME. GT2006, Volume 3: Heat Transfer, Parts A and B, 1333-1343, May 8–11, 2006

Paper No: GT2006-90215

DOI: https://doi.org/10.1115/GT2006-90215

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Topics: Cavities, Compressors, Cooling, Design, Disks, Engines, Gas turbines, Heat transfer, High pressure (Physics), Instrumentation

Journal citation

NARROW

Theoretical Study on the Origin of Radial Cracks in Labyrinth Seal Fins due to Rubbing

Capacitive Film Thickness Measurements in a Ventless Aero-Engine Bearing Chamber: Influence of Operating Conditions and Offtake Design

Capacitive Film Thickness Measurements in a Ventless Aero-Engine Bearing Chamber—Influence of Operating Conditions and Offtake Design

Optimization of Labyrinth Seal Performance Combining Experimental, Numerical and Data Mining Methods

Influences on the Oil Split Between the Offtakes of an Aero-Engine Bearing Chamber

Simple Particle Separator for the Secondary Air System of Gas Turbines

Validation of CFD and Coupled Fluid-Solid Modelling for a Direct Transfer Pre-Swirl System

Active Outer Ring Cooling of High Loaded and High Speed Ball Bearings

Active Outer Ring Cooling of High-Loaded and High-Speed Ball Bearings

Evaluation of Computational Fluid Dynamics and Coupled Fluid-Solid Modeling for a Direct Transfer Preswirl System

Experimental Investigation of Lubrication Oil Film Dynamics in a Typical Aero-Engine Bearing Chamber Environment

Modelling of an Aero-Engine Bearing Chamber Using Enhanced CFD Technique

Separation of Particles in the Secondary Air System of Gas Turbines

Direct Outer Ring Cooling of a High Speed Jet Engine Mainshaft Ball Bearing: Experimental Investigation Results

CFD Methods for Shear Driven Liquid Wall Films

Modelling the Labyrinth Seal Discharge Coefficient Using Data Mining Methods

Direct Outer Ring Cooling of a High Speed Jet Engine Mainshaft Ball Bearing: Experimental Investigation Results

Influence of Honeycomb Facings on the Temperature Distribution of Labyrinth Seals

Internal Air Systems Experimental Rig Best Practice

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