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Proceedings Papers

A Probabilistic Model for Forging Flaw Crack Nucleation Processes for Heavy Duty Gas Turbine Rotor Operations

Francesco Radaelli, Christian Amann, Ali Aydin, Igor Varfolomeev, Peter Gumbsch, Kai Kadau
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT25A004, June 13–17, 2022
Paper No: GT2022-82303
DOI: https://doi.org/10.1115/GT2022-82303
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Topics: Forging, Fracture (Materials), Gas turbines, Nucleation (Physics), Rotors
Proceedings Papers

Refinement of a High Cycle Fatigue Decision-Gate Assessment for Additively Repaired Blades

Onome Scott-Emuakpor, Brian Runyon, Daniel Gillaugh, Lucas Smith, Philip Johnson
Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T17A024, June 13–17, 2022
Paper No: GT2022-83282
DOI: https://doi.org/10.1115/GT2022-83282
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Topics: Blades, Gas turbines, Gates (Closures), High cycle fatigue, Maintenance, Nondestructive evaluation, Titanium, Acceptance criteria, Lasers, Additive manufacturing
Proceedings Papers

Numerical Model for Condensing Steam Through Labyrinth Seal

Ravindra G. Devi, Satyanarayanan Seshadri, Vittorio Michelassi
Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A007, June 7–11, 2021
Paper No: GT2021-58736
DOI: https://doi.org/10.1115/GT2021-58736
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Topics: Computer simulation, Condensation, Drops, Leakage flows, Nucleation (Physics), Steam, Condensed matter, Flow (Dynamics), Subcooling, Computational fluid dynamics
Proceedings Papers

The Influence of Condensation on the Performance Map of a Fuel Cell Turbocharger Turbine

Tim Wittmann, Sebastian Lück, Tim Hertwig, Christoph Bode, Jens Friedrichs
Proc. ASME. GT2021, Volume 6: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels; Microturbines, Turbochargers, and Small Turbomachines, V006T19A001, June 7–11, 2021
Paper No: GT2021-58472
DOI: https://doi.org/10.1115/GT2021-58472
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Topics: Condensation, Fuel cells, Turbines, Turbochargers, Pressure, Drops, Inflow, Nucleation (Physics), Aerodynamics, Exhaust systems
Proceedings Papers

The Feasibility of an Euler-Lagrange Approach for the Modelling of Wet Steam

Tim Wittmann, Christoph Bode, Jens Friedrichs
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A053, September 21–25, 2020
Paper No: GT2020-16199
DOI: https://doi.org/10.1115/GT2020-16199
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Topics: Modeling, Steam, Nucleation (Physics), Condensation, Flow (Dynamics), Nozzles, Drops, Turbines
Proceedings Papers

A Probabilistic Model for Forging Flaw Crack Nucleation Processes

Francesco Radaelli, Christian Amann, Ali Aydin, Igor Varfolomeev, Peter Gumbsch, Kai Kadau
Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT28A004, September 21–25, 2020
Paper No: GT2020-14606
DOI: https://doi.org/10.1115/GT2020-14606
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Topics: Forging, Fracture (Materials), Nucleation (Physics), Rotors
Proceedings Papers

Low-Cycle Fatigue Life of Continuously Cyclic-Hardening Material

Zhong Zhang, Xijia Wu
Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT27A021, September 21–25, 2020
Paper No: GT2020-15702
DOI: https://doi.org/10.1115/GT2020-15702
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Topics: Hardening, Low cycle fatigue, Nucleation (Physics)
Proceedings Papers

Volume of Fluid Based Model of Heavy Fuel Oil Droplet Evaporation and Combustion

Paolo Guida, Saumitra Saxena, William L. Roberts
Proc. ASME. GT2020, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A062, September 21–25, 2020
Paper No: GT2020-15124
DOI: https://doi.org/10.1115/GT2020-15124
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Topics: Combustion, Drops, Evaporation, Fluids, Fuel oils, Simulation, Bubbles, Computational fluid dynamics, Explosions, Pressure
Proceedings Papers

Life Assessment of Large Gas Turbine Blades

Santosh B. Narasimhachary, Kyle Smith, Sachin R. Shinde, Christian Amann, Kai Kadau, Saiganesh Iyer
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT31A015, June 17–21, 2019
Paper No: GT2019-91630
DOI: https://doi.org/10.1115/GT2019-91630
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Topics: Blades, Gas turbines, Fracture (Materials), Fracture mechanics, Manufacturing, Computers, Engineering instruments, Geometry, Investment casting (Process), Nickel
Proceedings Papers

Probabilistic Fracture Mechanics Framework Including Crack Nucleation of Rotor Forging Flaws

Francesco Radaelli, Kai Kadau, Christian Amann, Peter Gumbsch
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT32A002, June 17–21, 2019
Paper No: GT2019-90418
DOI: https://doi.org/10.1115/GT2019-90418
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Topics: Forging, Fracture (Materials), Fracture mechanics, Nucleation (Physics), Rotors, Failure, Probability, Fatigue cracks, Cycles, Fatigue
Proceedings Papers

Confidence Bound Estimation for Mechanism-Based Small Crack Growth Probabilistic Design Life Predictions

Patrick J. Golden, Sushant K. Jha, James M. Larsen
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT31A018, June 17–21, 2019
Paper No: GT2019-91860
DOI: https://doi.org/10.1115/GT2019-91860
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Topics: Design, Fracture (Materials), Gas turbines, Air Force, Fatigue, Fatigue cracks, Fatigue life, Fatigue testing, Fractography, Nucleation (Physics)
Proceedings Papers

Numerical Simulation of Non-Equilibrium Condensation in Supercritical CO 2 Compressors

Kevin W. Brinckman, Ashvin Hosangadi, Zisen Liu, Timothy Weathers
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A010, June 17–21, 2019
Paper No: GT2019-90497
DOI: https://doi.org/10.1115/GT2019-90497
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Topics: Compressors, Computer simulation, Condensation, Equilibrium (Physics), Supercritical carbon dioxide, Drops, Nucleation (Physics), Fluids, Carbon dioxide, Computational fluid dynamics
Proceedings Papers

Numerical Method for Simulating High Pressure CO 2 Flows With Nonequilibrium Condensation

Takashi Furusawa, Hironori Miyazawa, Shota Moriguchi, Satoru Yamamoto
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A012, June 11–15, 2018
Paper No: GT2018-75592
DOI: https://doi.org/10.1115/GT2018-75592
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Topics: Carbon dioxide, Condensation, Flow (Dynamics), High pressure (Physics), Numerical analysis, Nucleation (Physics), Pressure, Condensed matter, Drops, Nozzles
Proceedings Papers

Soot Prediction in an Aircraft Combustor at Realistic Operation Conditions

Alexander Steinbach, Tobias Dittmann, Peter Gerlinger, Manfred Aigner, Ruud Eggels
Proc. ASME. GT2018, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A018, June 11–15, 2018
Paper No: GT2018-75366
DOI: https://doi.org/10.1115/GT2018-75366
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Topics: Aircraft, Combustion chambers, Soot, Chemistry, Fuels, Smoke, Sprays, Turbulence, Benzene, Chemical kinetics
Proceedings Papers

Effect of Prior Creep Strain on High Cycle Fatigue Life of Ti 834

Xijia Wu, Dongyi Seo, Marc Head, Stephen Chan
Proc. ASME. GT2018, Volume 6: Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T24A006, June 11–15, 2018
Paper No: GT2018-75259
DOI: https://doi.org/10.1115/GT2018-75259
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Topics: Creep, High cycle fatigue, Damage, Failure, Fatigue, Fatigue cracks, Fatigue life, Fatigue testing, Fractography, Fracture (Materials)
Proceedings Papers

Numerical Investigation of Non-Isothermal Cavitating Flows on Hydrofoils by Means of an Extended Schnerr-Sauer Model Coupled With a Nucleation Model

Maria Grazia De Giorgi, Antonio Ficarella, Donato Fontanarosa
Proc. ASME. GT2018, Volume 2C: Turbomachinery, V02CT42A035, June 11–15, 2018
Paper No: GT2018-76223
DOI: https://doi.org/10.1115/GT2018-76223
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Topics: Flow (Dynamics), Hydrofoil, Nucleation (Physics), Vapors, Bubbles, Cavities, Computation, Density, Mass transfer, Temperature
Proceedings Papers

Quantification of Stator Blade Shape Influence on Non-Equilibrium Condensation in Low-Pressure Steam Turbine

Giteshkumar Patel, Yogini Patel, Teemu Turunen-Saaresti, Aki Grönman
Proc. ASME. GT2017, Volume 8: Microturbines, Turbochargers and Small Turbomachines; Steam Turbines, V008T29A028, June 26–30, 2017
Paper No: GT2017-64278
DOI: https://doi.org/10.1115/GT2017-64278
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Topics: Blades, Condensation, Equilibrium (Physics), Pressure, Shapes, Stators, Steam turbines, Flow (Dynamics), Steam, Cascades (Fluid dynamics)
Proceedings Papers

Characterization of Non-Equilibrium Condensation of Supercritical Carbon Dioxide in a de Laval Nozzle

Claudio Lettieri, Derek Paxson, Zoltan Spakovszky, Peter Bryanston-Cross
Proc. ASME. GT2017, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A024, June 26–30, 2017
Paper No: GT2017-64641
DOI: https://doi.org/10.1115/GT2017-64641
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Topics: Condensation, Equilibrium (Physics), Nozzles, Supercritical carbon dioxide, Compressors, Carbon dioxide, Fluids, Temperature, Carbon capture and storage, Compression
Proceedings Papers

On the Combination of Large Eddy Simulation and Phenomenological Soot Modelling to Calculate the Smoke Index From Aero-Engines Over a Large Range of Operating Conditions

Jean Lamouroux, Stéphane Richard, Quentin Malé, Gabriel Staffelbach, Antoine Dauptain, Antony Misdariis
Proc. ASME. GT2017, Volume 4B: Combustion, Fuels and Emissions, V04BT04A004, June 26–30, 2017
Paper No: GT2017-64262
DOI: https://doi.org/10.1115/GT2017-64262
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Topics: Aircraft engines, Large eddy simulation, Modeling, Smoke, Soot, Combustion chambers, Design, Emissions, Engines, Flames
Proceedings Papers

Connecting Computed-Tomography-Assisted Discontinuity Detection in Ni-Base Superalloys to Engineering Simulation

Adrian Loghin, Al Cerrone, Anjali Singhal, Ying Zhou
Proc. ASME. GT2017, Volume 7A: Structures and Dynamics, V07AT31A017, June 26–30, 2017
Paper No: GT2017-65087
DOI: https://doi.org/10.1115/GT2017-65087
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Topics: Engineering simulation, Superalloys, Fatigue, Failure, Fatigue life, Fractography, Fracture (Materials), Alloy steel, Alloys, Ceramics