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Proceedings Papers

Thermodynamic and Mechanical Design Concept for Micro-Turbojet to Micro-Turboshaft Engine Conversion

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T20A005, September 21–25, 2020

Paper No: GT2020-14498

DOI: https://doi.org/10.1115/GT2020-14498

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Topics: Design engineering, Engines, Turbojets, Design, Turbines, Blades, Computational fluid dynamics, Cycles, Dimensions, Gears

Proceedings Papers

An Analytical Pressure and Leakage Model for Leaf Seals

Gregor Nicht, Reinhard Willinger

Proc. ASME. GT2018, Volume 5B: Heat Transfer, V05BT15A025, June 11–15, 2018

Paper No: GT2018-76202

DOI: https://doi.org/10.1115/GT2018-76202

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Topics: Leakage, Pressure, Design, Leakage flows, Rotors, Sealing (Process), Turbomachinery, Computational fluid dynamics, Engineering simulation, Flow (Dynamics)

Proceedings Papers

The Physical Mechanism of Tip Leakage Loss Reduction by Means of Passive Injection in Low Mach Number Flows

Maximilian Passmann, Stefan aus der Wiesche, Franz Joos, Reinhard Willinger

Proc. ASME. GT2018, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T29A024, June 11–15, 2018

Paper No: GT2018-76336

DOI: https://doi.org/10.1115/GT2018-76336

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Topics: Flow (Dynamics), Leakage, Mach number, Cascades (Fluid dynamics), Clearances (Engineering), Numerical analysis, Turbines, Turbomachinery, Vortices

Proceedings Papers

Blade Tip Leakage Loss Reduction by Means of Passive Tip Injection: Linear Cascade Wind Tunnel Results

Jonas Rejek, Stefan aus der Wiesche, Reinhard Willinger

Proc. ASME. GT2017, Volume 2A: Turbomachinery, V02AT40A003, June 26–30, 2017

Paper No: GT2017-63083

DOI: https://doi.org/10.1115/GT2017-63083

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Topics: Blades, Cascades (Fluid dynamics), Leakage, Wind tunnels, Flow (Dynamics), Turbine blades, Fluids, Leakage flows, Pressure, Probes

Proceedings Papers

Profile and Mixing Losses of a Turbine Cascade Under the Condition of Low Reynolds Number Flows

Jonas Rejek, Maximilian Passmann, Karsten Hasselmann, Felix Reinker, Stefan aus der Wiesche, Lilach Mazor, Reinhard Willinger

Proc. ASME. FEDSM2016, Volume 1B, Symposia: Fluid Mechanics (Fundamental Issues and Perspectives; Industrial and Environmental Applications); Multiphase Flow and Systems (Multiscale Methods; Noninvasive Measurements; Numerical Methods; Heat Transfer; Performance); Transport Phenomena (Clean Energy; Mixing; Manufacturing and Materials Processing); Turbulent Flows — Issues and Perspectives; Algorithms and Applications for High Performance CFD Computation; Fluid Power; Fluid Dynamics of Wind Energy; Marine Hydrodynamics, V01BT25A002, July 10–14, 2016

Paper No: FEDSM2016-7568

DOI: https://doi.org/10.1115/FEDSM2016-7568

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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Reynolds number, Turbines, Computational fluid dynamics, Boundary layers, Blades, Flow measurement, Flow separation, Turbulence

Proceedings Papers

On the Impact of Passive Tip-Injection on the Downstream Flow Field of a Shrouded LP-Turbine: CFD and Experimental Results

Pouya Ghaffari, Reinhard Willinger

Proc. ASME. GT2016, Volume 2B: Turbomachinery, V02BT38A009, June 13–17, 2016

Paper No: GT2016-56196

DOI: https://doi.org/10.1115/GT2016-56196

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Topics: Computational fluid dynamics, Flow (Dynamics), Turbines, Leakage, Blades, Angular momentum, Clearances (Engineering), Compressible flow, Fins, Pressure

Proceedings Papers

Reduction of Turbine Blade Tip Leakage Losses and Excitation Forces by Passive Tip Injection

Stefan aus der Wiesche, Maximilian Passmann, Reinhard Willinger

Proc. ASME. IMECE2015, Volume 1: Advances in Aerospace Technology, V001T01A041, November 13–19, 2015

Paper No: IMECE2015-50120

DOI: https://doi.org/10.1115/IMECE2015-50120

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Topics: Excitation, Leakage, Turbine blades, Blades, Turbines, Discharge coefficient, Viscous flow

Proceedings Papers

Impact of Passive Tip-Injection on Tip-Leakage Flow in Axial Low Pressure Turbine Stage

Pouya Ghaffari, Reinhard Willinger, Sabine Bauinger, Andreas Marn

Proc. ASME. GT2015, Volume 2A: Turbomachinery, V02AT38A002, June 15–19, 2015

Paper No: GT2015-42226

DOI: https://doi.org/10.1115/GT2015-42226

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Topics: Flow (Dynamics), Leakage, Pressure, Turbines, Blades, Computational fluid dynamics, Boundary-value problems, Compressible flow, Computer simulation, Machinery

Proceedings Papers

The Role of Rotor Tip Clearance on the Aerodynamic Interaction of a Last Gas Turbine Stage and an Exhaust Diffuser

Reinhard Willinger, Hermann Haselbacher

Proc. ASME. GT1998, Volume 1: Turbomachinery, V001T01A030, June 2–5, 1998

Paper No: 98-GT-094

DOI: https://doi.org/10.1115/98-GT-094

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Topics: Clearances (Engineering), Diffusers, Exhaust systems, Gas turbines, Rotors, Cascades (Fluid dynamics), Flow (Dynamics), Geometry, Boundary-value problems, Computation

Proceedings Papers

Influence of Blade Loading Criteria and Design Limits on the Cordier-Line for Axial Flow Fans

Reinhard Willinger, Michael Köhler

Proc. ASME. GT2014, Volume 1A: Aircraft Engine; Fans and Blowers, V01AT10A002, June 16–20, 2014

Paper No: GT2014-25140

DOI: https://doi.org/10.1115/GT2014-25140

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Topics: Axial flow, Blades, Design, Fans, Flow (Dynamics), Cascades (Fluid dynamics), Separation (Technology), Boundary layers, Compressors, Diffusion (Physics)

Proceedings Papers

Interpretation of Unexpected Aggregation of Condensate in Shrouded HP-Stages of an Industrial Steam Turbine

Mario Schinnerl, Wolfgang Beer, Reinhard Willinger

Proc. ASME. GT2014, Volume 1B: Marine; Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V01BT27A031, June 16–20, 2014

Paper No: GT2014-26083

DOI: https://doi.org/10.1115/GT2014-26083

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Topics: Condensed matter, Steam turbines, Oscillations, Blades, Heat, Flux (Metallurgy), Rotors, Turbines, Bearings, Condensation

Proceedings Papers

On the Modeling of Tip Leakage Flow in Axial Turbine Blade Rows

Reinhard Willinger, Hermann Haselbacher

Proc. ASME. GT2000, Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, V001T03A106, May 8–11, 2000

Paper No: 2000-GT-0633

DOI: https://doi.org/10.1115/2000-GT-0633

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Topics: Blades, Chords (Trusses), Dimensional analysis, Discharge coefficient, Flow (Dynamics), Leakage, Leakage flows, Modeling, Reynolds number, Turbine blades

Proceedings Papers

Impact of Passive Tip-Injection on the Performance of Partially Shrouded Turbines: Basic Concept and Preliminary Results

Pouya Ghaffari, Reinhard Willinger

Proc. ASME. TBTS2013, ASME 2013 Turbine Blade Tip Symposium, V001T09A003, September 30–October 3, 2013

Paper No: TBTS2013-2038

DOI: https://doi.org/10.1115/TBTS2013-2038

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Topics: Aircraft, Blades, Computational fluid dynamics, Discharge coefficient, Engineering simulation, Flow (Dynamics), Gas turbines, Leakage, Pressure, Simulation

Proceedings Papers

Design Modification of a Passive Tip-Leakage Control Method for Axial Turbines: Linear Cascade Wind Tunnel Results

Albert Benoni, Reinhard Willinger

Proc. ASME. TBTS2013, ASME 2013 Turbine Blade Tip Symposium, V001T09A004, September 30–October 3, 2013

Paper No: TBTS2013-2056

DOI: https://doi.org/10.1115/TBTS2013-2056

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Topics: Cascades (Fluid dynamics), Design, Leakage, Turbines, Wind tunnels, Chords (Trusses), Flow (Dynamics), Blades, Turbine blades, Discharge coefficient

Proceedings Papers

Theoretical Interpretation of the CORDIER-Lines for Squirrel-Cage and Cross-Flow Fans

Reinhard Willinger

Proc. ASME. GT2012, Volume 3: Cycle Innovations; Education; Electric Power; Fans and Blowers; Industrial and Cogeneration, 675-684, June 11–15, 2012

Paper No: GT2012-68186

DOI: https://doi.org/10.1115/GT2012-68186

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Topics: Cross-flow, Fans, Rotors, Flow (Dynamics), Blades, Pressure, Design, Energy transformation, Enthalpy, Noise (Sound)

Proceedings Papers

Development of a µ-Scale Turbine Expander for Energy Recovery

Marcus Keding, Piotr Dudzinski, Martin Tajmar, Reinhard Willinger, Klaus Ka¨fer

Proc. ASME. GT2009, Volume 5: Microturbines and Small Turbomachinery; Oil and Gas Applications, 21-27, June 8–12, 2009

Paper No: GT2009-59092

DOI: https://doi.org/10.1115/GT2009-59092

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Topics: Energy recovery, Turbines, Heat pumps, Pressure, Carbon dioxide, Heating, HVAC equipment, Air conditioning, Bearings, Energy dissipation

Proceedings Papers

An Innovative Passive Tip-Leakage Control Method for Axial Turbines: Linear Cascade Wind Tunnel Results

Markus Hamik, Reinhard Willinger

Proc. ASME. GT2008, Volume 6: Turbomachinery, Parts A, B, and C, 927-938, June 9–13, 2008

Paper No: GT2008-50056

DOI: https://doi.org/10.1115/GT2008-50056

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Topics: Cascades (Fluid dynamics), Leakage, Turbines, Wind tunnels, Blades, Flow (Dynamics), Pressure, Chords (Trusses), Geometry, Turbine blades

Proceedings Papers

Technical and Economic Assessment of Small to Medium Scale Bio-Ethanol Distilleries With Cogeneration Systems

Miguel Angel Gonza´lez-Salazar, Reinhard Willinger

Proc. ASME. GT2007, Volume 1: Turbo Expo 2007, 475-486, May 14–17, 2007

Paper No: GT2007-28240

DOI: https://doi.org/10.1115/GT2007-28240

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Topics: Cogeneration systems, Combined heat and power, Economic analysis, Ethanol

Proceedings Papers

Combined Heat and Power Technologies: Application Studies of Options Including Micro Gas Turbines

Miguel Angel Gonza´lez, Ro´ger Padilla, Reinhard Willinger

Proc. ASME. GT2004, Volume 4: Turbo Expo 2004, 693-702, June 14–17, 2004

Paper No: GT2004-53909

DOI: https://doi.org/10.1115/GT2004-53909

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Topics: Combined heat and power, Energy / power systems, Micro gas turbines

Journal citation

NARROW

Thermodynamic and Mechanical Design Concept for Micro-Turbojet to Micro-Turboshaft Engine Conversion

An Analytical Pressure and Leakage Model for Leaf Seals

The Physical Mechanism of Tip Leakage Loss Reduction by Means of Passive Injection in Low Mach Number Flows

Blade Tip Leakage Loss Reduction by Means of Passive Tip Injection: Linear Cascade Wind Tunnel Results

Profile and Mixing Losses of a Turbine Cascade Under the Condition of Low Reynolds Number Flows

On the Impact of Passive Tip-Injection on the Downstream Flow Field of a Shrouded LP-Turbine: CFD and Experimental Results

Reduction of Turbine Blade Tip Leakage Losses and Excitation Forces by Passive Tip Injection

Impact of Passive Tip-Injection on Tip-Leakage Flow in Axial Low Pressure Turbine Stage

The Role of Rotor Tip Clearance on the Aerodynamic Interaction of a Last Gas Turbine Stage and an Exhaust Diffuser

Influence of Blade Loading Criteria and Design Limits on the Cordier-Line for Axial Flow Fans

Interpretation of Unexpected Aggregation of Condensate in Shrouded HP-Stages of an Industrial Steam Turbine

On the Modeling of Tip Leakage Flow in Axial Turbine Blade Rows

Impact of Passive Tip-Injection on the Performance of Partially Shrouded Turbines: Basic Concept and Preliminary Results

Design Modification of a Passive Tip-Leakage Control Method for Axial Turbines: Linear Cascade Wind Tunnel Results

Theoretical Interpretation of the CORDIER-Lines for Squirrel-Cage and Cross-Flow Fans

Development of a µ-Scale Turbine Expander for Energy Recovery

An Innovative Passive Tip-Leakage Control Method for Axial Turbines: Linear Cascade Wind Tunnel Results

Technical and Economic Assessment of Small to Medium Scale Bio-Ethanol Distilleries With Cogeneration Systems

Combined Heat and Power Technologies: Application Studies of Options Including Micro Gas Turbines

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