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Journal Articles

On the Predicted Effects of Recess Depth and Orifice Diameter on Pneumatic Hammer Instability in Hydrostatic Journal Bearings Using Compressible Fluid and Comparisons With Test Data

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Hyunsung Jung, Kyuman Kim, Keun Ryu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2025, 147(11): 111012.
Paper No: GTP-25-1097
https://doi.org/10.1115/1.4068651
Published Online: June 12, 2025
View Articletitled, On the Predicted Effects of Recess Depth and Orifice Diameter on Pneumatic Hammer Instability in Hydrostatic Journal Bearings Using Compressible Fluid and Comparisons With Test Data
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Topics: Bearings, Design, Hammers, Hydrostatics, Stiffness, Journal bearings, Fluids, Pressure, Flow (Dynamics)
Journal Articles

A Modal Analysis of Spray Structures from a Transversely Injected Liquid Jet in Subsonic and Supersonic Crossflows

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Accepted Manuscript
Aubrey McKelvy, Ignacio Lasala, James Braun, Guillermo Paniagua, Etienne Choquet, Thierry Andre, Francois Falempin
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-25-1131
https://doi.org/10.1115/1.4068889
Published Online: June 9, 2025
View Articletitled, A Modal Analysis of Spray Structures from a Transversely Injected Liquid Jet in Subsonic and Supersonic Crossflows
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Topics: Modal analysis, Sprays, Flow (Dynamics), Ejectors, Momentum, Waves, Ethanol, Flow instability, Fluids, Gas flow
Journal Articles

Inlet Preswirl Effects on the Leakage and Dynamic Characteristics of a Labyrinth Seal: Experimental Results and Computational Fluid Dynamics Analysis

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Tianhao Wang, Wensong Xue, Zihan Zhang, Zhigang Li, Jun Li
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2025, 147(11): 111006.
Paper No: GTP-24-1824
https://doi.org/10.1115/1.4068428
Published Online: May 12, 2025
View Articletitled, Inlet Preswirl Effects on the Leakage and Dynamic Characteristics of a Labyrinth Seal: Experimental Results and Computational Fluid Dynamics Analysis
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Topics: Computational fluid dynamics, Damping, Excitation, Flow (Dynamics), Leakage, Pressure, Rotors, Stators, Stiffness, Numerical analysis
Journal Articles

High-Temperature Industrial-Scale CO 2 Heat Pumps: Thermodynamic Analysis and Pilot-Scale Testing

Open Access
Timothy J. Held, Jason Miller, Jason Mallinak, Luke Magyar
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2025, 147(10): 101010.
Paper No: GTP-24-1703
https://doi.org/10.1115/1.4068029
Published Online: March 21, 2025
View Articletitled, High-Temperature Industrial-Scale CO 2 Heat Pumps: Thermodynamic Analysis and Pilot-Scale Testing
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Topics: Carbon dioxide, Compressors, Cycles, Fluids, Heat, Heat pumps, High temperature, Pressure, Temperature, Steam
Journal Articles

The Hybrid Pathway to Flexible Power Turbines: Part IV, Automated Construction of Mesh Derived Thermal Network Models for Fast Full-Machine Thermal Analysis

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Mark Baker, Budimir Rosic
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2025, 147(10): 101006.
Paper No: GTP-25-1026
https://doi.org/10.1115/1.4067992
Published Online: March 18, 2025
View Articletitled, The Hybrid Pathway to Flexible Power Turbines: Part IV, Automated Construction of Mesh Derived Thermal Network Models for Fast Full-Machine Thermal Analysis
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Topics: Construction, Flow (Dynamics), Fluids, Geometry, Heat transfer, Machinery, Network models, Radiation (Physics), Simulation, Turbines
Journal Articles

Dynamic Response of a Pivot-Mounted Squeeze Film Damper: Measurements and Predictions

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Marie Kasprzyk, Adolfo Delgado
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2025, 147(7): 071017.
Paper No: GTP-24-1735
https://doi.org/10.1115/1.4067336
Published Online: January 20, 2025
View Articletitled, Dynamic Response of a Pivot-Mounted Squeeze Film Damper: Measurements and Predictions
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Topics: Dampers, Damping, Dynamic response, Fluids, Viscosity, Finite element analysis, Stiffness, Vibration
Journal Articles

Numerical Modeling of a Primary Heat Exchanger in sCO 2 Power Cycles for Thermal Energy Storage Systems

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Alexandre Guille, Malini Bangalore Mohankumar, Sebastian Unger, Uwe Hampel
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2025, 147(6): 061025.
Paper No: GTP-24-1677
https://doi.org/10.1115/1.4066892
Published Online: December 20, 2024
View Articletitled, Numerical Modeling of a Primary Heat Exchanger in sCO 2 Power Cycles for Thermal Energy Storage Systems
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Topics: Computational fluid dynamics, Flow (Dynamics), Fluids, Heat exchangers, Heat transfer, Optimization, Pressure, Pressure drop, Printed circuit heat exchangers, Pumps
Journal Articles

Dynamic Performance and Control Analysis of a Supercritical CO 2 Recuperated Cycle

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Swatara Tucker, Simone Maccarini, Luca Mantelli, Alberto Traverso
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2025, 147(5): 051027.
Paper No: GTP-24-1624
https://doi.org/10.1115/1.4066785
Published Online: December 20, 2024
View Articletitled, Dynamic Performance and Control Analysis of a Supercritical CO 2 Recuperated Cycle
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Topics: Carbon dioxide, Compressors, Control equipment, Cycles, Design, Flow (Dynamics), Pressure, Steady state, Stress, Supercritical carbon dioxide
Journal Articles

The Role of the Working Fluid and Nonideal Thermodynamic Effects on Performance of Gas-Lubricated Bearings

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Wessel de Waart, Matteo Pini
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2025, 147(6): 061015.
Paper No: GTP-24-1652
https://doi.org/10.1115/1.4066822
Published Online: December 11, 2024
View Articletitled, The Role of the Working Fluid and Nonideal Thermodynamic Effects on Performance of Gas-Lubricated Bearings
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Topics: Bearings, Bulk modulus, Fluids, Stress, Compressibility, Pressure, Density, Flow (Dynamics), Rotors, Gas bearings
Journal Articles

Laser Powder Bed Fusion Manufactured Hydrostatic Journal Bearings for Turbomachinery: Design and Measurements of Static Load Testing With Air, Water, and Liquid Nitrogen

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Chaeyeon Baek, Hyunsung Jung, Junwon Heo, Kyuman Kim, Keun Ryu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2025, 147(6): 061012.
Paper No: GTP-24-1603
https://doi.org/10.1115/1.4066781
Published Online: November 25, 2024
View Articletitled, Laser Powder Bed Fusion Manufactured Hydrostatic Journal Bearings for Turbomachinery: Design and Measurements of Static Load Testing With Air, Water, and Liquid Nitrogen
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Topics: Bearings, Journal bearings, Nitrogen, Stress, Water, Hydrostatics, Flow (Dynamics), Manufacturing, Fluids, Design
Journal Articles

V-Spline Design for Enhanced Performance in Turbine Blade Internal Cooling

Open Access
Symus Say, Adamya Singh Dhaker, Wai Tuck Chow
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2025, 147(6): 061008.
Paper No: GTP-24-1191
https://doi.org/10.1115/1.4066828
Published Online: November 25, 2024
View Articletitled, V-Spline Design for Enhanced Performance in Turbine Blade Internal Cooling
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Topics: Cooling, Creep, Design, Fatigue, Flow (Dynamics), Fluids, Heat transfer, Splines, Temperature, Turbine blades
Journal Articles

Supercritical Carbon Dioxide Mixing Loss Characteristics Near the Critical Point

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Jinhong Wang, Teng Cao, Ricardo Martinez-Botas
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2025, 147(5): 051020.
Paper No: GTP-24-1609
https://doi.org/10.1115/1.4066603
Published Online: November 22, 2024
View Articletitled, Supercritical Carbon Dioxide Mixing Loss Characteristics Near the Critical Point
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Topics: Degrees of freedom, Entropy, Fluids, Pressure, Temperature, Carbon dioxide
Journal Articles

Development of Large-Diameter Hybrid Film-Riding Seals for Supercritical Carbon Dioxide Turbines

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Rahul A. Bidkar, Uttara Kumar, Deepak Trivedi, Xiaohua Zhang, Collin Rambacher, Aaron Rimpel, Thomas Kerr, Jeremy Johnson
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2025, 147(2): 021031.
Paper No: GTP-24-1409
https://doi.org/10.1115/1.4067180
Published Online: November 20, 2024
View Articletitled, Development of Large-Diameter Hybrid Film-Riding Seals for Supercritical Carbon Dioxide Turbines
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Topics: Bearings, Design, Film thickness, Fluids, Leakage, Pressure, Rotors, Supercritical carbon dioxide, Temperature, Turbines
Journal Articles

Centrifugal Compressor Surge in Innovative Heat Pump: Fluid Dynamic and Vibrational Analysis

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Marco Ferrando, Tommaso Reboli, Federico Reggio, Carlo Alberto Niccolini, Paolo Silvestri, Alberto Traverso, Vishnu Sishtla
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2025, 147(3): 031029.
Paper No: GTP-23-1366
https://doi.org/10.1115/1.4063547
Published Online: November 15, 2024
View Articletitled, Centrifugal Compressor Surge in Innovative Heat Pump: Fluid Dynamic and Vibrational Analysis
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Topics: Compressors, Cycles, Surges, Heat pumps, Water, Fluids, Pressure
Journal Articles

Thermal Load Control in High-Temperature Heat Pumps: A Comparative Study

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Matteo Pettinari, Guido Francesco Frate, Lorenzo Ferrari, Fatma Cansu Yücel, A. Phong Tran, Panagiotis Stathopoulos, Konstantinos Kyprianidis
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2025, 147(5): 051006.
Paper No: GTP-24-1571
https://doi.org/10.1115/1.4066706
Published Online: November 14, 2024
View Articletitled, Thermal Load Control in High-Temperature Heat Pumps: A Comparative Study
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Topics: Compressors, Fluids, Heat pumps, High temperature, Temperature, Thermal loads, Turbomachinery, Heat exchangers, Heat, Transients (Dynamics)
Journal Articles

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

Open Access
Amit Kumar, Simone Parisi, Roberto Agromayor, Jens H. Walther, Fredrik Haglind
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2025, 147(5): 051013.
Paper No: GTP-24-1706
https://doi.org/10.1115/1.4066819
Published Online: November 14, 2024
View Articletitled, Numerical Analysis of a Two-Phase Turbine: A Comparative Study Between Barotropic and Mixture Models
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Topics: Computational fluid dynamics, Flow (Dynamics), Nozzles, Pressure, Rotors, Simulation, Torque, Turbines, Blades, Fluids
Journal Articles

Dynamic Response of a Rotor Supported on Hybrid Bearings in Air, Water, and Liquid Nitrogen: Measurements and Comparisons to Predictions

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Howon Yi, Kyuman Kim, Hyunsung Jung, Keun Ryu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2025, 147(2): 021027.
Paper No: GTP-24-1501
https://doi.org/10.1115/1.4066539
Published Online: October 26, 2024
View Articletitled, Dynamic Response of a Rotor Supported on Hybrid Bearings in Air, Water, and Liquid Nitrogen: Measurements and Comparisons to Predictions
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Topics: Bearings, Rotors, Water, Fluids, Nitrogen
Journal Articles

Multidisciplinary Optimization of Gyroid Topologies for a Cold Plate Heat Exchanger Design

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Elhusseiny Daifalla, Shahrokh Shahpar, Indi Tristanto, Mario Carta
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2024, 146(12): 121028.
Paper No: GTP-24-1402
https://doi.org/10.1115/1.4066532
Published Online: October 25, 2024
View Articletitled, Multidisciplinary Optimization of Gyroid Topologies for a Cold Plate Heat Exchanger Design
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Topics: Design, Flow (Dynamics), Fluids, Geometry, Heat exchangers, Optimization, Pressure, Temperature, Topology, Computational fluid dynamics
Journal Articles

Centrifugal Compressor Surge in Closed-Loop Systems: Initial Modeling and Comparison With Experiments

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Sreenath Purushothaman, Carlo Alberto Niccolini Marmont Du Haut Champ, Federico Reggio, Paolo Silvestri, Alberto Traverso, Chaitanya Halbe
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2025, 147(3): 031012.
Paper No: GTP-24-1466
https://doi.org/10.1115/1.4066376
Published Online: October 4, 2024
View Articletitled, Centrifugal Compressor Surge in Closed-Loop Systems: Initial Modeling and Comparison With Experiments
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Topics: Compressors, Heat exchangers, Modeling, Surges, Refrigerants, Cycles, Pressure, Condensers (steam plant), Flow (Dynamics), Fluids
Journal Articles

Assessment of Rotordynamic Characteristics for Two Types of Damper Seals Operating in a Steam Turbine

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Zhigang Li, Zihan Zhang, Jun Li
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2025, 147(2): 021005.
Paper No: GTP-24-1370
https://doi.org/10.1115/1.4066295
Published Online: September 26, 2024
View Articletitled, Assessment of Rotordynamic Characteristics for Two Types of Damper Seals Operating in a Steam Turbine
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Topics: Brakes, Dampers, Damping, Fluids, Rotors, Steam turbines, Stiffness, Whirls, Cavities, Pressure