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Journal Articles

Computational Fluid Dynamics Prediction of Rotordynamic Coefficients for Grooved Seals: Model and Numerical Sensitivity

Accepted Manuscript
Nathaniel Gibbons, Cori Watson-Kassa, Christopher Goyne
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-23-1014
DOI: https://doi.org/10.1115/1.4062560
Published Online: May 18, 2023
View Article titled, Computational Fluid Dynamics Prediction of Rotordynamic Coefficients for Grooved Seals: Model and Numerical Sensitivity
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Topics: Computational fluid dynamics, Modeling, Geometry, Pressure, Stiffness, Approximation, Rotors, Whirls
Journal Articles

A Modified Loss Breakdown Approach for Axial Turbines Operating with Blended Supercritical Carbon Dioxide

Accepted Manuscript
Abdelrahman Abdeldayem, Salma Ibrahim Abdelhak Ibrahim Salah, Martin White, A.I. Sayma
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-22-1616
DOI: https://doi.org/10.1115/1.4062478
Published Online: May 5, 2023
View Article titled, A Modified Loss Breakdown Approach for Axial Turbines Operating with Blended Supercritical Carbon Dioxide
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Topics: Supercritical carbon dioxide, Turbines, Boundary layers, Computational fluid dynamics, Carbon dioxide, Computer simulation, Entropy, Flow (Dynamics), Machinery, Rotors
Journal Articles

Kriging-Based Surrogate Controller for Robust Control of a Flexible Rotor Supported by Active Magnetic Bearings

Marcus V. F. De Oliveira, Leonardo C. Sicchieri, Arinan De Piemonte Dourado, Aldemir Ap. Cavallini, Jr., Valder Steffen, Jr.
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2023, 145(7): 071005.
Paper No: GTP-22-1488
DOI: https://doi.org/10.1115/1.4062104
Published Online: April 19, 2023
View Article titled, Kriging-Based Surrogate Controller for Robust Control of a Flexible Rotor Supported by Active Magnetic Bearings
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Topics: Control equipment, Rotors, Magnetic bearings, Vibration
Journal Articles

On the Effects of Optimal Implementation of Variable Rotor Speed and Power Management on Hybrid-Electric Rotorcraft

Chana Anna Saias, Ioannis Goulos, Vassilios Pachidis, Marko Bacic
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2023, 145(3): 031028.
Paper No: GTP-22-1245
DOI: https://doi.org/10.1115/1.4056855
Published Online: February 23, 2023
View Article titled, On the Effects of Optimal Implementation of Variable Rotor Speed and Power Management on Hybrid-Electric Rotorcraft
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Topics: Fuels, Rotors, Engines, Design, Batteries, Weight (Mass), Flight, Optimization
Journal Articles

Measurement of Inertial and Acoustic Waves in a Turbine Chute Rim Seal Cavity

Anna Bru Revert, Paul F. Beard, John W. Chew
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2023, 145(6): 061021.
Paper No: GTP-22-1603
DOI: https://doi.org/10.1115/1.4056552
Published Online: February 15, 2023
View Article titled, Measurement of Inertial and Acoustic Waves in a Turbine Chute Rim Seal Cavity
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Topics: Acoustics, Annulus, Cavities, Flow (Dynamics), Pressure, Rotors, Waves, Disks, Unsteady flow
Journal Articles

Dynamic Characteristics of Rotor-Squeeze Film Damper-Support System Excited by Base Harmonic Excitations Using MHB-AFT Method

Bo Zhang, Xi Chen, Fengguang Xiang, Xiaohua Gan, Guangming Ren
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2023, 145(6): 061008.
Paper No: GTP-22-1555
DOI: https://doi.org/10.1115/1.4056048
Published Online: January 13, 2023
View Article titled, Dynamic Characteristics of Rotor-Squeeze Film Damper-Support System Excited by Base Harmonic Excitations Using MHB-AFT Method
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Topics: Dampers, Excitation, Rotation, Rotors, Steady state, Displacement, Yaw
Journal Articles

Numerical Investigation on the Leakage and Rotordynamic Characteristics for a Hole-Pattern Seal in Wet-Gas Conditions

Zhi Fang, Zhigang Li, Jun Li
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2023, 145(6): 061003.
Paper No: GTP-22-1241
DOI: https://doi.org/10.1115/1.4056310
Published Online: January 13, 2023
View Article titled, Numerical Investigation on the Leakage and Rotordynamic Characteristics for a Hole-Pattern Seal in Wet-Gas Conditions
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Topics: Damping, Leakage, Numerical analysis, Pressure, Rotors, Stiffness, Clearances (Engineering), Leakage flows, Cavities, Oscillating frequencies
Journal Articles

Multi-Objective Optimization of Economy, Safety and Emissions for the Startup Scheduling of a Steam Turbine

Jianhong Chen, Ziwei Hu, Wei Li, Zhiwei Mao, Wenjian Wu, Zhenghao Gu
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2023, 145(6): 061004.
Paper No: GTP-22-1277
DOI: https://doi.org/10.1115/1.4056427
Published Online: January 13, 2023
View Article titled, Multi-Objective Optimization of Economy, Safety and Emissions for the Startup Scheduling of a Steam Turbine
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Topics: Damage, Emissions, Fatigue life, Optimization, Pareto optimization, Rotors, Steam turbines, Stress, Temperature, Safety
Journal Articles

Modal Identification for Integrally Bladed Rotors Under Traveling Wave Excitation

Joseph A. Beck, Jeffrey M. Brown, Daniel L. Gillaugh, Alex A. Kaszynski
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2023, 145(6): 061010.
Paper No: GTP-22-1625
DOI: https://doi.org/10.1115/1.4056538
Published Online: January 13, 2023
View Article titled, Modal Identification for Integrally Bladed Rotors Under Traveling Wave Excitation
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Topics: Blades, Excitation, Spectral energy distribution, Traveling waves, Rotors, Damping, Mode shapes, Testing
Journal Articles

Experimentally Measured Effectiveness of Different Shroud Swirl Brake Profiles in a Centrifugal Compressor

Jason Wilkes, Natalie Smith, Balaji Venkataraman, Marco Vagani, Sara Goucher
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2023, 145(5): 051012.
Paper No: GTP-21-1576
DOI: https://doi.org/10.1115/1.4056109
Published Online: January 10, 2023
View Article titled, Experimentally Measured Effectiveness of Different Shroud Swirl Brake Profiles in a Centrifugal Compressor
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Topics: Brakes, Cavities, Compressors, Design, Flow (Dynamics), Impellers, Pressure, Probes, Rotors
Journal Articles

Experimental Force Coefficients for a Fully-Partitioned Pocket Damper Seal and Comparison to Other Two Seal Types

Adolfo Delgado, Luis San Andrés, Jing Yang, Jonathan Thiele
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2023, 145(5): 051019.
Paper No: GTP-22-1478
DOI: https://doi.org/10.1115/1.4056347
Published Online: January 10, 2023
View Article titled, Experimental Force Coefficients for a Fully-Partitioned Pocket Damper Seal and Comparison to Other Two Seal Types
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Topics: Computational fluid dynamics, Dampers, Damping, Excitation, Flow (Dynamics), Leakage, Pressure, Rotors, Stiffness, Stability
Journal Articles

Numerical Investigations on Gas Ingestion Mechanism Based on Flow Instabilities in Rim Seal and Cooling Characteristics of Endwall in a 1.5-Stage Axial Turbine

Qingfeng Cong, Kaiyuan Zhang, Zhigang Li, Jun Li
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2023, 145(5): 051001.
Paper No: GTP-22-1158
DOI: https://doi.org/10.1115/1.4055826
Published Online: December 20, 2022
View Article titled, Numerical Investigations on Gas Ingestion Mechanism Based on Flow Instabilities in Rim Seal and Cooling Characteristics of Endwall in a 1.5-Stage Axial Turbine
Open the PDF for Numerical Investigations on Gas Ingestion Mechanism Based on Flow Instabilities in Rim Seal and Cooling Characteristics of Endwall in a 1.5-Stage Axial Turbine in another window
Topics: Blades, Cavities, Clearances (Engineering), Cooling, Disks, Film cooling, Flow (Dynamics), Rotors, Sealants, Sealing (Process)
Journal Articles

Effect of System Mode and Structural Damping Perturbation on the Mistuned Forced Response and Aerodynamic Damping of Embedded Compressor Rotors

Shreyas Hegde, Jonathan D. Inge, Robert Kielb
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2023, 145(5): 051004.
Paper No: GTP-22-1389
DOI: https://doi.org/10.1115/1.4055832
Published Online: December 20, 2022
View Article titled, Effect of System Mode and Structural Damping Perturbation on the Mistuned Forced Response and Aerodynamic Damping of Embedded Compressor Rotors
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Topics: Blades, Compressors, Damping, Flutter (Aerodynamics), Rotors
Journal Articles

Methodology for the Redesign of Compressor Blades Undergoing Nonlinear Structural Interactions: Application to Blade-Tip/Casing Contacts

Solène Kojtych, Florence Nyssen, Charles Audet, Alain Batailly
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2023, 145(5): 051002.
Paper No: GTP-22-1332
DOI: https://doi.org/10.1115/1.4055681
Published Online: December 20, 2022
View Article titled, Methodology for the Redesign of Compressor Blades Undergoing Nonlinear Structural Interactions: Application to Blade-Tip/Casing Contacts
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Topics: Blades, Rotors
Journal Articles

Finite Element Analysis of Bent Rotors

Konrad Juethner, Ted Rose, J. S. Kumar, Jianming Cao, Gregory M. Savela, Chris J. Zuck, Parag H. Mathuria
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2023, 145(1): 011025.
Paper No: GTP-22-1404
DOI: https://doi.org/10.1115/1.4055452
Published Online: December 14, 2022
View Article titled, Finite Element Analysis of Bent Rotors
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Topics: Rotors, Bearings
Journal Articles

Effect of Channel Size on Air-Cooling Performance in Interior Permanent Magnet Motor Driving Aviation Fans at High Altitude

Yu Ito, Toshinori Watanabe, Naoki Seki, Karin Hirakawa, Tomoya Inoue, Takehiro Himeno
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2023, 145(4): 041016.
Paper No: GTP-22-1453
DOI: https://doi.org/10.1115/1.4055980
Published Online: December 13, 2022
View Article titled, Effect of Channel Size on Air-Cooling Performance in Interior Permanent Magnet Motor Driving Aviation Fans at High Altitude
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Topics: Cooling, Engines, Heat exchangers, Heat transfer, Motors, Permanent magnets, Pressure, Rotors, Stators, Temperature
Journal Articles

Stability of a Rotor Partially Filled With Fluid: Test Facility and Experimental Results

Marie Kasprzyk, John Sentmanat, Adolfo Delgado
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2023, 145(4): 041019.
Paper No: GTP-22-1517
DOI: https://doi.org/10.1115/1.4055946
Published Online: December 13, 2022
View Article titled, Stability of a Rotor Partially Filled With Fluid: Test Facility and Experimental Results
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Topics: Damping, Fluids, Rotors, Vibration, Waves, Bearings, Whirls
Journal Articles

Machine-Learning Clustering Methods Applied to Detection of Noise Sources in Low-Speed Axial Fan

Lorenzo Tieghi, Stefan Becker, Alessandro Corsini, Giovanni Delibra, Stefan Schoder, Felix Czwielong
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2023, 145(3): 031020.
Paper No: GTP-22-1291
DOI: https://doi.org/10.1115/1.4055417
Published Online: December 8, 2022
View Article titled, Machine-Learning Clustering Methods Applied to Detection of Noise Sources in Low-Speed Axial Fan
Open the PDF for Machine-Learning Clustering Methods Applied to Detection of Noise Sources in Low-Speed Axial Fan in another window
Topics: Algorithms, Blades, Flow (Dynamics), Machine learning, Noise (Sound), Simulation, Optimization, Pressure, Turbulence, Computation
Journal Articles

Stability Analysis of an Industrial Blade Accounting for a Blade-Tip/Casing Nonlinear Interface

Yann Colaïtis, Alain Batailly
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2023, 145(4): 041003.
Paper No: GTP-22-1331
DOI: https://doi.org/10.1115/1.4055492
Published Online: December 8, 2022
View Article titled, Stability Analysis of an Industrial Blade Accounting for a Blade-Tip/Casing Nonlinear Interface
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Topics: Blades, Stability, Rotors, Computation, Accounting
Journal Articles

A Comparison of Static and Rotordynamic Characteristics for Three Types of Impeller Front Seals in a Liquid Oxygen Turbopump

Zhihong Jin, Kai Mao, Zhigang Li, Jun Li
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2023, 145(3): 031025.
Paper No: GTP-22-1247
DOI: https://doi.org/10.1115/1.4055351
Published Online: December 8, 2022
View Article titled, A Comparison of Static and Rotordynamic Characteristics for Three Types of Impeller Front Seals in a Liquid Oxygen Turbopump
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Topics: Damping, Impellers, Leakage, Oxygen, Rotors, Sealing (Process), Stators, Stiffness, Stress, Whirls