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Proceedings Papers

On the Influence of Bearing Modeling Details on the Dynamical System Effects of a Mid-Size Turbocharger Rotor

Arthur Zobel, Christopher Fuhrer, Damian M. Vogt, Alex Nakos, Bernd Beirow, Alexander Blessing, Carolin Zippack
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A010, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102098
https://doi.org/10.1115/GT2023-102098
View Paper titled, On the Influence of Bearing Modeling Details on the Dynamical System Effects of a Mid-Size Turbocharger Rotor
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Topics: Bearings, Dynamic systems, Modeling, Rotors, Turbochargers, Compressors, Turbines, Wheels, Damping, Excitation
Proceedings Papers

Mistuning and Damping of a Radial Turbine Wheel. Part 3: Validation of Intentional Mistuning During Machine Operation

Alex Nakos, Bernd Beirow, Manfred Wirsum, Markus Schafferus, Marios Sasakaros, Damian Vogt, Arthur Zobel
Proc. ASME. GT2023, Volume 11B: Structures and Dynamics — Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V11BT27A011, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101993
https://doi.org/10.1115/GT2023-101993
View Paper titled, Mistuning and Damping of a Radial Turbine Wheel. Part 3: Validation of Intentional Mistuning During Machine Operation
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Topics: Blades, Damping, Machinery, Turbines, Vibration, Wheels, Hardware, Turbochargers, Compressors, Computer software
Proceedings Papers

Multi-Objective Numerical Optimization of Radial Turbines

Christopher Fuhrer, Nikola Kovachev, Damian M. Vogt, Ganesh Raja Mahalingam, Stuart Mann
Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT34A022, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103918
https://doi.org/10.1115/GT2023-103918
View Paper titled, Multi-Objective Numerical Optimization of Radial Turbines
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Topics: Optimization, Turbines, Design, Geometry, Durability, Inertia (Mechanics), Computational fluid dynamics, Engineering disciplines, Engineering simulation, Finite element analysis
Proceedings Papers

Windage Torque Reduction in Low-Pressure Turbine Cavities Part 2: Experimental and Numerical Results

Richard Jackson, Gary D. Lock, Carl M. Sangan, James A. Scobie, Zhihui Li, Loizos Christodoulou, Richard Jefferson-Loveday, Stephen Ambrose
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A015, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102311
https://doi.org/10.1115/GT2023-102311
View Paper titled, Windage Torque Reduction in Low-Pressure Turbine Cavities Part 2: Experimental and Numerical Results
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Topics: Cavities, Pressure, Torque, Turbines, Flow (Dynamics), Wheels, Engines, Rotors, Stators, Annulus
Proceedings Papers

Analysis of Single Blade Passage and Full Circumference Large-Eddy Simulations of Turbine Rim Seal Flows

Thomas Hösgen, Matthias Meinke, Wolfgang Schröder
Proc. ASME. GT2023, Volume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V07BT14A004, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101688
https://doi.org/10.1115/GT2023-101688
View Paper titled, Analysis of Single Blade Passage and Full Circumference Large-Eddy Simulations of Turbine Rim Seal Flows
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Topics: Blades, Flow (Dynamics), Large eddy simulation, Sealing (Process), Turbines, Wheels, Disks, Annulus, Axial flow, Cavities
Proceedings Papers

Unsteady Flow Phenomena in a 1.5-Stage Test Turbine With an Axial Rim Seal

Lukas Pehle, Stephan Stotz, Manfred Wirsum
Proc. ASME. GT2023, Volume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V07BT14A017, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103434
https://doi.org/10.1115/GT2023-103434
View Paper titled, Unsteady Flow Phenomena in a 1.5-Stage Test Turbine With an Axial Rim Seal
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Topics: Turbines, Unsteady flow, Flow (Dynamics), Pressure, Sealing (Process), Blades, Wheels, Cavity flows, Fluctuations (Physics), Gas turbines
Proceedings Papers

A Compressor Wheel Design for Noise Reduction Due to Pressure Gradient in an Automotive Turbocharger

Wonbae Jung, Seongsoo Kim, Taeho Noh
Proc. ASME. GT2023, Volume 9: Microturbines, Turbochargers, and Small Turbomachines; Oil and Gas Applications, V009T18A015, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104105
https://doi.org/10.1115/GT2023-104105
View Paper titled, A Compressor Wheel Design for Noise Reduction Due to Pressure Gradient in an Automotive Turbocharger
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Topics: Compressors, Design, Noise (Sound), Noise control, Pressure gradient, Turbochargers, Wheels
Proceedings Papers

A Computationally Efficient Method for the Thermo-Structural Analysis of a Turbocharger Turbine Wheel Under Engine Transient Operation

Iacopo Catalani, Francesco Balduzzi, Alessandro Bianchini, Giovanni Ferrara, Nicola Pini, Luigi Mosciaro, Daniele Mattiello, Silvio Rabbolini, Pierre-Alain Hoffer
Proc. ASME. GT2023, Volume 9: Microturbines, Turbochargers, and Small Turbomachines; Oil and Gas Applications, V009T18A007, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102204
https://doi.org/10.1115/GT2023-102204
View Paper titled, A Computationally Efficient Method for the Thermo-Structural Analysis of a Turbocharger Turbine Wheel Under Engine Transient Operation
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Topics: Computational fluid dynamics, Engines, Transients (Dynamics), Turbines, Turbochargers, Wheels
Proceedings Papers

Swirl Enhancement Effect on Turbine Rim Seal Performance

Mingeun Choi, Bonhan Goo, GeonHwan Cho, Seung Jin Song
Proc. ASME. GT2023, Volume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V07BT14A003, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101389
https://doi.org/10.1115/GT2023-101389
View Paper titled, Swirl Enhancement Effect on Turbine Rim Seal Performance
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Topics: Gas turbines, Sealing (Process), Turbines, Flow (Dynamics), Wheels, Pressure, Cycles, Clearances (Engineering), Compressors, Disks
Proceedings Papers

On the Use of PSP to Determine the Rim Sealing Effectiveness

Lorenzo Orsini, Alessio Picchi, Bruno Facchini, Alessio Bonini, Luca Innocenti
Proc. ASME. GT2023, Volume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V07BT14A022, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103820
https://doi.org/10.1115/GT2023-103820
View Paper titled, On the Use of PSP to Determine the Rim Sealing Effectiveness
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Topics: Cavities, Gas turbines, Sealing (Process), Flow (Dynamics), Pressure, Oxygen, Rotors, Stators, Carbon dioxide, Modeling
Proceedings Papers

Experimental and Computational Investigation of an Advanced Casing Treatment in a Single Stage High Speed Compressor

Nicholas H. Maher, Mark H. Ross, Scott C. Morris, Stephan Priebe, Giridhar Jothiprasad, David Allan, G. Scott McNulty, Michael Macrorie
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A042, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83459
https://doi.org/10.1115/GT2022-83459
View Paper titled, Experimental and Computational Investigation of an Advanced Casing Treatment in a Single Stage High Speed Compressor
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Topics: Compressors, Rotors, Design, Engineering simulation, Pressure, Simulation, Computer simulation, Flow (Dynamics), Inlet guide vanes, Physics
Proceedings Papers

Numerical Investigation on Radial Turbines Aerodynamics Aimed at the Definition of Design Rules for Industrial Applications

Fabrizio Lottini, Michele Marconcini, Andrea Arnone, Davide Biliotti, Lorenzo Toni
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A009, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82266
https://doi.org/10.1115/GT2022-82266
View Paper titled, Numerical Investigation on Radial Turbines Aerodynamics Aimed at the Definition of Design Rules for Industrial Applications
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Topics: Aerodynamics, Design, Turbines, Metals, Wheels, Geometry, Stiffness, Flow (Dynamics), Turbochargers, Computational fluid dynamics
Proceedings Papers

Model Setup for the Investigation of Flow Phenomena in a 1.5-Stage Gas Turbine Regarding Hot Gas Ingestion

Lukas Pehle, Sven Schwertner, Manfred Wirsum
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT14A006, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81947
https://doi.org/10.1115/GT2022-81947
View Paper titled, Model Setup for the Investigation of Flow Phenomena in a 1.5-Stage Gas Turbine Regarding Hot Gas Ingestion
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Topics: Flow (Dynamics), Gas turbines, Cavities, Pressure, Sealing (Process), Wheels, Boundary-value problems, Computer simulation, Modeling, Turbines
Proceedings Papers

Mistuning and Damping of a Radial Turbine Wheel. Part 2: Implementation and Validation of Intentional Mistuning

Alex Nakos, Bernd Beirow, Arthur Zobel
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT27A006, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80643
https://doi.org/10.1115/GT2022-80643
View Paper titled, Mistuning and Damping of a Radial Turbine Wheel. Part 2: Implementation and Validation of Intentional Mistuning
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Topics: Blades, Damping, Turbines, Vibration, Wheels, Design, Manufacturing, Accounting, Exhaust systems, Free vibrations
Proceedings Papers

Impact of Aerodynamic Asymmetry on the Embedded Rotor Forcing and Mistuned Blade Response

Shreyas Hegde, Laith Zori, Rubens Campregher, Robert Kielb
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A004, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78101
https://doi.org/10.1115/GT2022-78101
View Paper titled, Impact of Aerodynamic Asymmetry on the Embedded Rotor Forcing and Mistuned Blade Response
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Topics: Blades, Compressors, Computational fluid dynamics, Rotors, Stators, Engineering simulation, Simulation, Waves, Disks, Reflection
Proceedings Papers

Characterizing Flow Instabilities During Transient Events in the Turbine Rim Seal Cavity

Maria Rozman, Eric T. DeShong, Reid A. Berdanier, Karen A. Thole, Christopher Robak
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A021, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82664
https://doi.org/10.1115/GT2022-82664
View Paper titled, Characterizing Flow Instabilities During Transient Events in the Turbine Rim Seal Cavity
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Topics: Cavities, Flow instability, Transients (Dynamics), Turbines, Flow (Dynamics), Aircraft engines, Cooling, Cycles, Design, Energy generation
Proceedings Papers

Efficient Forced Response Analysis for Asymmetric Vane Spacing

Benedict Geihe, Christian Frey, Graham Ashcroft
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT21A022, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82983
https://doi.org/10.1115/GT2022-82983
View Paper titled, Efficient Forced Response Analysis for Asymmetric Vane Spacing
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Topics: Blades, Engineering simulation, Engines, Excitation, Fluctuations (Physics), Fourier transforms, Inflow, Rotors, Simulation, Turbines
Proceedings Papers

Application of Intentional Mistuning to Reduce the Vibration Susceptibility of a Steam Turbine Wheel

Bernd Beirow, Mark Golze, Frederik Popig
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT27A016, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82208
https://doi.org/10.1115/GT2022-82208
View Paper titled, Application of Intentional Mistuning to Reduce the Vibration Susceptibility of a Steam Turbine Wheel
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Topics: Blades, Flutter (Aerodynamics), Steam turbines, Vibration, Wheels
Proceedings Papers

Numerical Observations of a Stall Phenomenon in the NASA CC3 Compressor

Michael Ni, Gregorio Robles Vega, Ron Ho Ni, John Clark, Michael List
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A004, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78911
https://doi.org/10.1115/GT2022-78911
View Paper titled, Numerical Observations of a Stall Phenomenon in the NASA CC3 Compressor
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Topics: Compressors, NASA, Engineering simulation, Simulation, Flow (Dynamics), Annulus, Approximation, Design, Diffusers, Numerical analysis
Proceedings Papers

Effects of Turbine Conditions on Rim Seal Performance and Prediction

Shaun Burden, John W. Chew, Feng Gao, Olaf Marxen
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT14A016, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83194
https://doi.org/10.1115/GT2022-83194
View Paper titled, Effects of Turbine Conditions on Rim Seal Performance and Prediction
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Topics: Computational fluid dynamics, Turbines, Flow (Dynamics), Pressure, Cavities, Cooling systems, Disks, Dynamics (Mechanics), Geometry, Large eddy simulation