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Proceedings Papers

Numerical Analysis of a Two-Phase Turbine: a Comparative Study Between Barotropic and Mixture Models

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Amit Kumar, Simone Parisi, Roberto Agromayor, Jens Honore Walther, Fredrik Haglind
Proc. ASME. GT2024, Volume 12B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V12BT30A033, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127133
https://doi.org/10.1115/GT2024-127133
View Paper titled, Numerical Analysis of a Two-Phase Turbine: a Comparative Study Between Barotropic and Mixture Models
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Topics: Cavitation, Computational fluid dynamics, Condensation, Impulse (Physics), Nozzles, Numerical analysis, Turbines, Modeling, Flow (Dynamics), Torque
Proceedings Papers

Cavitation Measurements and Flow Visualization on a Hydrofoil With Different Tip Gaps

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Sabri Deniz
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A017, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123823
https://doi.org/10.1115/GT2024-123823
View Paper titled, Cavitation Measurements and Flow Visualization on a Hydrofoil With Different Tip Gaps
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Topics: Cavitation, Flow visualization, Hydrofoil, Leakage, Separation (Technology), Turbomachinery, Vortices
Proceedings Papers

Model for Local Cavitation Instabilities in 2-Bladed Turbopump Inducers

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Youngkuk Yoon, Seung Jin Song
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A028, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129494
https://doi.org/10.1115/GT2024-129494
View Paper titled, Model for Local Cavitation Instabilities in 2-Bladed Turbopump Inducers
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Topics: Cavitation
Proceedings Papers

Experimental and Numerical Investigations of the Influence of Cavitation on the Head Drop Curves of Centrifugal Pumps

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Mehmet Kaya, Erkan Ayder
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A004, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-121515
https://doi.org/10.1115/GT2024-121515
View Paper titled, Experimental and Numerical Investigations of the Influence of Cavitation on the Head Drop Curves of Centrifugal Pumps
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Topics: Cavitation, Centrifugal pumps
Proceedings Papers

Numerical Investigation of Flashing Flow in a Convergent-Divergent Nozzle

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Amit Kumar, Carlotta Tammone, Fredrik Haglind
Proc. ASME. GT2023, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T09A009, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103483
https://doi.org/10.1115/GT2023-103483
View Paper titled, Numerical Investigation of Flashing Flow in a Convergent-Divergent Nozzle
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Topics: Flashing, Flow (Dynamics), Nozzles, Nucleation (Physics), Energy storage, Renewable energy sources, Storage, Turbochargers, Vapors, Carbon dioxide
Proceedings Papers

Pump-Turbine Development for Geomechanical Pumped Storage Facility

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Abhay Patil, Jason Wilkes, Jordan Nielson, Bunker Hill
Proc. ASME. GT2023, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T09A008, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103471
https://doi.org/10.1115/GT2023-103471
View Paper titled, Pump-Turbine Development for Geomechanical Pumped Storage Facility
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Topics: Pump turbines, Storage, Design, Flow (Dynamics), Pumps, Turbines, Energy storage, Manufacturing, Reservoirs, Cavitation
Proceedings Papers

An Algorithm for Starved Lubricated Journal Bearings With Optionally Locked Lube Oil Feed Grooves

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Thomas Hagemann, Daniel Vetter, Hubert Schwarze
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A030, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103732
https://doi.org/10.1115/GT2023-103732
View Paper titled, An Algorithm for Starved Lubricated Journal Bearings With Optionally Locked Lube Oil Feed Grooves
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Topics: Algorithms, Cavitation, Journal bearings
Proceedings Papers

Modeling and Simulation of the Cavitation Phenomenon in a Turbopump: A Multiphase Approach

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Joris Cazé, Fabien Petitpas, Eric Daniel, Sébastien Le Martelot, Matthieu Queguineur
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A002, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78025
https://doi.org/10.1115/GT2022-78025
View Paper titled, Modeling and Simulation of the Cavitation Phenomenon in a Turbopump: A Multiphase Approach
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Topics: Cavitation, Modeling, Simulation, Flow (Dynamics), Pumps, Compressibility, Vapors, Computer simulation, Equations of state, Equilibrium (Physics)
Proceedings Papers

Numerical Predictions of Cavitating Flow Within a Liquid Hydrogen Inducer

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Robert F. Blumenthal, Franklyn J. Kelecy
Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A035, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59751
https://doi.org/10.1115/GT2021-59751
View Paper titled, Numerical Predictions of Cavitating Flow Within a Liquid Hydrogen Inducer
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Topics: Cavitation, Flow (Dynamics), Hydrogen, Turbomachinery, Pumps, Computational fluid dynamics, Fluids, Temperature, Damage, Design
Proceedings Papers

Transient Analysis of Aircraft Oil Supply System With Fuel-Oil Heat Exchangers During Abrupt Change in Engine Operating Modes

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Viktor Yevlakhov, Leonid Moroz, Andrii Khandrymailov, Yuriy Hyrka
Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T01A016, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59992
https://doi.org/10.1115/GT2021-59992
View Paper titled, Transient Analysis of Aircraft Oil Supply System With Fuel-Oil Heat Exchangers During Abrupt Change in Engine Operating Modes
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Topics: Aircraft, Engines, Flow (Dynamics), Fuel oils, Fuels, Heat exchangers, Heat transfer, Thermofluids, Transient analysis, Temperature
Proceedings Papers

Numerical Evaluation and High-Speed Rotating Test on Circular Arc Spring Dampers for Centrifugal Compressors

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Ryota Takeuchi, Hidetsugu Ishimaru, Hideaki Yamashita, Takahiko Inoue, Shota Yabui, Tsuyoshi Inoue
Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A012, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58979
https://doi.org/10.1115/GT2021-58979
View Paper titled, Numerical Evaluation and High-Speed Rotating Test on Circular Arc Spring Dampers for Centrifugal Compressors
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Topics: Compressors, Dampers, Springs, Bearings, Damping, Evaluation methods, Fluid films, Rotors, Stability, Cavitation
Proceedings Papers

The Thermo-Hydrodynamic Analysis of the Plain Journal Bearing With Centered Circumferential Groove: Numerical Simulation vs. Experiment

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Guanghui Zhang, Shubo Yu, Zhansheng Liu, Kefan Xu, Yu Li
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A011, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14364
https://doi.org/10.1115/GT2020-14364
View Paper titled, The Thermo-Hydrodynamic Analysis of the Plain Journal Bearing With Centered Circumferential Groove: Numerical Simulation vs. Experiment
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Topics: Computer simulation, Journal bearings, Thermohydrodynamics, Bearings, Temperature, Clearances (Engineering), Temperature distribution, Design, Flow (Dynamics), Sensors
Proceedings Papers

Novel Approach for Optical Characterization of Thrust Collar Lubricated Area: Experimental and Numerical Results

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Thomas Kerr, Adolfo Delgado
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A025, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15467
https://doi.org/10.1115/GT2020-15467
View Paper titled, Novel Approach for Optical Characterization of Thrust Collar Lubricated Area: Experimental and Numerical Results
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Topics: Thrust, Cavitation, Stress, Turbulence, Computational fluid dynamics, Modeling, Pressure, Algorithms, Bearings, Compressors
Proceedings Papers

Numerical Investigation for Characteristics and Oil-Air Distributions of a Tilting-Pad Journal Bearing Under Different Loads

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Aoshuang Ding, Xuesong Li
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A024, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15151
https://doi.org/10.1115/GT2020-15151
View Paper titled, Numerical Investigation for Characteristics and Oil-Air Distributions of a Tilting-Pad Journal Bearing Under Different Loads
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Topics: Bearings, Cavitation, Journal bearings, Stress, Flow (Dynamics), Turbulence, Film thickness, Knudsen number, Rotors, Simulation results
Proceedings Papers

Metallurgical Evaluation of an Additively Manufactured Nickel-Base Superalloy for Gas Turbine Guide Vanes

Open Access

Alex Bridges, John Shingledecker, Alex Torkaman, Lonnie Houck
Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T18A005, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14808
https://doi.org/10.1115/GT2020-14808
View Paper titled, Metallurgical Evaluation of an Additively Manufactured Nickel-Base Superalloy for Gas Turbine Guide Vanes
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Topics: Additive manufacturing, Gas turbines, Guide vanes, Nickel, Superalloys, Creep, Grain size, Rupture, Alloys, Casting
Proceedings Papers

Dynamic Model Based Identification of Cavitation Compliance and Mass Flow Gain Factor in Rocket Engine Turbopump Inducers

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Y. Wan, M. Manfredi, A. Pasini, Z. Spakovszky
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A031, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15655
https://doi.org/10.1115/GT2020-15655
View Paper titled, Dynamic Model Based Identification of Cavitation Compliance and Mass Flow Gain Factor in Rocket Engine Turbopump Inducers
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Topics: Cavitation, Dynamic models, Flow (Dynamics), Rocket engines
Proceedings Papers

Limiting Inlet Conditions for Phase Change Avoidance in Supercritical CO 2 Compressors

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Timothy C. Allison, Aaron McClung
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A007, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90409
https://doi.org/10.1115/GT2019-90409
View Paper titled, Limiting Inlet Conditions for Phase Change Avoidance in Supercritical CO 2 Compressors
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Topics: Compressors, Supercritical carbon dioxide, Mach number, Temperature, Cycles, Design, Pressure, Cavitation, Condensation, Fluids
Proceedings Papers

Improvement and Analysis for a Gaseous Cavitation Model Applied in a Tilting-Pad Journal Bearing

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Aoshuang Ding, Xuesong Li, Yuhong Li
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A017, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90626
https://doi.org/10.1115/GT2019-90626
View Paper titled, Improvement and Analysis for a Gaseous Cavitation Model Applied in a Tilting-Pad Journal Bearing
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Topics: Cavitation, Journal bearings, Transients (Dynamics), Bearings, Equilibrium (Physics), Engineering simulation, Pressure, Simulation, Stress, Knudsen number
Proceedings Papers

Compliant Hybrid Gas Bearing Using Integral Hermetically-Sealed Squeeze Film Dampers

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Bugra Ertas
Proc. ASME. GT2019, Volume 7B: Structures and Dynamics, V07BT34A023, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90865
https://doi.org/10.1115/GT2019-90865
View Paper titled, Compliant Hybrid Gas Bearing Using Integral Hermetically-Sealed Squeeze Film Dampers
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Topics: Dampers, Gas bearings, Bearings, Cavities, Vibration, Bearing design, Damping, Design, Excitation, Fluid structure interaction
Proceedings Papers

Active Control of Unsteady Cavitating Flows in Turbomachinery

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Maria Grazia De Giorgi, Antonio Ficarella, Donato Fontanarosa
Proc. ASME. GT2019, Volume 2A: Turbomachinery, V02AT45A027, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-92041
https://doi.org/10.1115/GT2019-92041
View Paper titled, Active Control of Unsteady Cavitating Flows in Turbomachinery
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Topics: Flow (Dynamics), Turbomachinery, Cavities, Vapors, Dynamics (Mechanics), Vorticity, Cavitation, Hydrofoil, Pressure, Actuators