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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
Click here to open pdf in another window PDF for A Modified Loss Breakdown Approach for Axial Turbines Operating with Blended Supercritical Carbon Dioxide
Topics: Supercritical carbon dioxide, Turbines, Boundary layers, Computational fluid dynamics, Carbon dioxide, Computer simulation, Entropy, Flow (Dynamics), Machinery, Rotors
Journal Articles

Aerodynamic Design of Cooling Guide for Electrical Machine in Electric Ducted Fan

Xuanyang Hu, Yuping Qian, Bijie Yang, Chaofan Dong, Yangjun Zhang, Weilin Zhuge
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2023, 145(5): 051009.
Paper No: GTP-22-1505
DOI: https://doi.org/10.1115/1.4056016
Published Online: December 22, 2022
View Article titled, Aerodynamic Design of Cooling Guide for Electrical Machine in Electric Ducted Fan
Click here to open pdf in another window PDF for Aerodynamic Design of Cooling Guide for Electrical Machine in Electric Ducted Fan
Topics: Cooling, Design, Ducts, Guide vanes, Machinery, Winding (process), Stators
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
Click here to open pdf in another window 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
Topics: Blades, Cavities, Clearances (Engineering), Cooling, Disks, Film cooling, Flow (Dynamics), Rotors, Sealants, Sealing (Process)
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
Click here to open pdf in another window PDF for Effect of Channel Size on Air-Cooling Performance in Interior Permanent Magnet Motor Driving Aviation Fans at High Altitude
Topics: Cooling, Engines, Heat exchangers, Heat transfer, Motors, Permanent magnets, Pressure, Rotors, Stators, Temperature
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
Click here to open pdf in another window PDF for A Comparison of Static and Rotordynamic Characteristics for Three Types of Impeller Front Seals in a Liquid Oxygen Turbopump
Topics: Damping, Impellers, Leakage, Oxygen, Rotors, Sealing (Process), Stators, Stiffness, Stress, Whirls
Journal Articles

Measured Leakage and Rotordynamic Force Coefficients for Two Liquid Annular Seal Configurations: Smooth-Rotor/Grooved-Stator Versus Grooved-Rotor/Smooth-Stator

Dara W. Childs, Jing Yang, Luis San Andrés, Jose M. Torres Rueda, James Alex Moreland
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2023, 145(3): 031005.
Paper No: GTP-22-1435
DOI: https://doi.org/10.1115/1.4055638
Published Online: December 5, 2022
View Article titled, Measured Leakage and Rotordynamic Force Coefficients for Two Liquid Annular Seal Configurations: Smooth-Rotor/Grooved-Stator Versus Grooved-Rotor/Smooth-Stator
Click here to open pdf in another window PDF for Measured Leakage and Rotordynamic Force Coefficients for Two Liquid Annular Seal Configurations: Smooth-Rotor/Grooved-Stator Versus Grooved-Rotor/Smooth-Stator
Topics: Leakage, Rotors, Stators, Stiffness, Damping, Pumps
Journal Articles

Evaluating the Aerodynamic Damping At Shock Wave Boundary Layer Interacting Flow Conditions With Harmonic Balance

Jan Philipp Heners, Christian Frey, Björn Grüber, Thomas Carraro
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2023, 145(3): 031012.
Paper No: GTP-22-1465
DOI: https://doi.org/10.1115/1.4055636
Published Online: December 5, 2022
View Article titled, Evaluating the Aerodynamic Damping At Shock Wave Boundary Layer Interacting Flow Conditions With Harmonic Balance
Click here to open pdf in another window PDF for Evaluating the Aerodynamic Damping At Shock Wave Boundary Layer Interacting Flow Conditions With Harmonic Balance
Topics: Boundary layers, Damping, Flow (Dynamics), Flutter (Aerodynamics), Shock waves, Turbulence, Shock (Mechanics), Stators, Reynolds-averaged Navier–Stokes equations, Simulation
Journal Articles

Unsteady Investigation of the Effect of Purge Air on the Flow Field Inside a Turbine Vane Frame Using Particle Image Velocimetry

Malte Schien, Asim Hafizovic, Florian Planck, Filippo Merli, Jakob Woisetschläger, Emil Göttlich
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2022, 144(12): 121016.
Paper No: GTP-22-1292
DOI: https://doi.org/10.1115/1.4055663
Published Online: October 14, 2022
View Article titled, Unsteady Investigation of the Effect of Purge Air on the Flow Field Inside a Turbine Vane Frame Using Particle Image Velocimetry
Click here to open pdf in another window PDF for Unsteady Investigation of the Effect of Purge Air on the Flow Field Inside a Turbine Vane Frame Using Particle Image Velocimetry
Topics: Design, Flow (Dynamics), Particulate matter, Rotors, Turbines, Pressure, Stators, Fluids, Inflow
Journal Articles

Performance Assessment of Tesla Expander Using Three-Dimensional Numerical Simulation

Avinash Renuke, Alberto Traverso
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2022, 144(11): 111006.
Paper No: GTP-22-1420
DOI: https://doi.org/10.1115/1.4055486
Published Online: September 20, 2022
View Article titled, Performance Assessment of Tesla Expander Using Three-Dimensional Numerical Simulation
Click here to open pdf in another window PDF for Performance Assessment of Tesla Expander Using Three-Dimensional Numerical Simulation
Topics: Computational fluid dynamics, Flow (Dynamics), Nozzles, Pressure, Rotors, Stators, Turbines, Disks, Fluids
Journal Articles

Integrated Aerodynamic and Structural Blade Shape Optimization of Axial Turbines Operating With Supercritical Carbon Dioxide Blended With Dopants

Abdelrahman S. Abdeldayem, Martin T. White, Andrea Paggini, Marco Ruggiero, Abdulnaser I. Sayma
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2022, 144(10): 101016.
Paper No: GTP-22-1269
DOI: https://doi.org/10.1115/1.4055232
Published Online: September 12, 2022
View Article titled, Integrated Aerodynamic and Structural Blade Shape Optimization of Axial Turbines Operating With Supercritical Carbon Dioxide Blended With Dopants
Click here to open pdf in another window PDF for Integrated Aerodynamic and Structural Blade Shape Optimization of Axial Turbines Operating With Supercritical Carbon Dioxide Blended With Dopants
Topics: Blades, Design, Optimization, Rotors, Stators, Turbines, Computational fluid dynamics, Flow (Dynamics), Finite element analysis, Stress
Journal Articles

Multifidelity Optimization Under Uncertainty for Robust Design of a Micro-Turbofan Turbine Stage

Richard Amankwa Adjei, Xinqian Zheng, Fangyuan Lou, Chuang Ding
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2022, 144(10): 101006.
Paper No: GTP-22-1143
DOI: https://doi.org/10.1115/1.4055231
Published Online: September 1, 2022
View Article titled, Multifidelity Optimization Under Uncertainty for Robust Design of a Micro-Turbofan Turbine Stage
Click here to open pdf in another window PDF for Multifidelity Optimization Under Uncertainty for Robust Design of a Micro-Turbofan Turbine Stage
Topics: Blades, Design, Flow (Dynamics), Optimization, Pressure, Turbines, Uncertainty quantification, Uncertainty, Rotors, Stators
Journal Articles

Swirl Ratio Prediction Model in Rotor-Stator Cavity With Superposed Outward Radial Throughflow Based on Region Partition

Qiang Du, Lei Xie, Guang Liu, Zengyan Lian, Jun Liu, Ran Ren
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2022, 144(8): 081010.
Paper No: GTP-21-1650
DOI: https://doi.org/10.1115/1.4054794
Published Online: June 23, 2022
View Article titled, Swirl Ratio Prediction Model in Rotor-Stator Cavity With Superposed Outward Radial Throughflow Based on Region Partition
Click here to open pdf in another window PDF for Swirl Ratio Prediction Model in Rotor-Stator Cavity With Superposed Outward Radial Throughflow Based on Region Partition
Topics: Cavities, Flow (Dynamics), Rotors, Stators, Computational fluid dynamics, Friction, Boundary layers
Journal Articles

Efficient Optimization Design of Vortex Generators in a Highly Loaded Compressor Stator

Jiabin Li, Weiwei Li, Lucheng Ji
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2022, 144(6): 061002.
Paper No: GTP-21-1533
DOI: https://doi.org/10.1115/1.4053707
Published Online: March 11, 2022
View Article titled, Efficient Optimization Design of Vortex Generators in a Highly Loaded Compressor Stator
Click here to open pdf in another window PDF for Efficient Optimization Design of Vortex Generators in a Highly Loaded Compressor Stator
Topics: Compressors, Design, Flow (Dynamics), Generators, Optimization, Pressure, Stators, Support vector machines, Vortices, Computational fluid dynamics
Journal Articles

Multirow Adjoint-Based Optimization of NICFD Turbomachinery Using a Computer-Aided Design-Based Parametrization

Roberto Agromayor, Nitish Anand, Matteo Pini, Lars O. Nord
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2022, 144(4): 041008.
Paper No: GTP-21-1257
DOI: https://doi.org/10.1115/1.4052881
Published Online: January 21, 2022
View Article titled, Multirow Adjoint-Based Optimization of NICFD Turbomachinery Using a Computer-Aided Design-Based Parametrization
Click here to open pdf in another window PDF for Multirow Adjoint-Based Optimization of NICFD Turbomachinery Using a Computer-Aided Design-Based Parametrization
Topics: Blades, Design, Flow (Dynamics), Optimization, Parametrization, Turbines, Turbomachinery, Rotors, Computer-aided design, Reynolds-averaged Navier–Stokes equations
Journal Articles

Periodic Unsteady Kinematics of Hub Flows in a Shrouded Multistage Compressor

Jaehyoung Lee, Sungkyung Lim, Hyoun-Woo Shin, Sungryong Lee, Seung Jin Song
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2022, 144(4): 041011.
Paper No: GTP-21-1571
DOI: https://doi.org/10.1115/1.4053106
Published Online: January 21, 2022
View Article titled, Periodic Unsteady Kinematics of Hub Flows in a Shrouded Multistage Compressor
Click here to open pdf in another window PDF for Periodic Unsteady Kinematics of Hub Flows in a Shrouded Multistage Compressor
Topics: Compressors, Flow (Dynamics), Rotors, Stators, Wakes, Corners (Structural elements), Separation (Technology), Vorticity
Journal Articles

Experimental Characterization of Losses in Bladeless Turbine Prototype

Avinash Renuke, Federico Reggio, Alberto Traverso, Matteo Pascenti
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2022, 144(4): 041009.
Paper No: GTP-21-1519
DOI: https://doi.org/10.1115/1.4053117
Published Online: January 21, 2022
View Article titled, Experimental Characterization of Losses in Bladeless Turbine Prototype
Click here to open pdf in another window PDF for Experimental Characterization of Losses in Bladeless Turbine Prototype
Topics: Flow (Dynamics), Nozzles, Rotors, Stators, Turbines, Ventilation, Engineering prototypes, Pressure, Leakage, Disks
Journal Articles

Binary Repetitive Model Predictive Active Flow Control Applied to an Annular Compressor Stator Cascade With Periodic Disturbances

Benjamin Fietzke, Jan Mihalyovics, Rudibert King, Dieter Peitsch
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2022, 144(1): 011029.
Paper No: GTP-21-1308
DOI: https://doi.org/10.1115/1.4052382
Published Online: December 9, 2021
View Article titled, Binary Repetitive Model Predictive Active Flow Control Applied to an Annular Compressor Stator Cascade With Periodic Disturbances
Click here to open pdf in another window PDF for Binary Repetitive Model Predictive Active Flow Control Applied to an Annular Compressor Stator Cascade With Periodic Disturbances
Topics: Blades, Cascades (Fluid dynamics), Compressors, Flow (Dynamics), Pressure, Stators, Suction, Flow control, Valves, Errors
Journal Articles

Details of Shrouded Stator Hub Cavity Flow in a Multistage Axial Compressor Part 2: Leakage Flow Characteristics in Stator Wells

Nitya Kamdar, Fangyuan Lou, Nicole L. Key
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2022, 144(1): 011027.
Paper No: GTP-21-1334
DOI: https://doi.org/10.1115/1.4051958
Published Online: November 2, 2021
View Article titled, Details of Shrouded Stator Hub Cavity Flow in a Multistage Axial Compressor Part 2: Leakage Flow Characteristics in Stator Wells
Click here to open pdf in another window PDF for Details of Shrouded Stator Hub Cavity Flow in a Multistage Axial Compressor Part 2: Leakage Flow Characteristics in Stator Wells
Topics: Cavities, Flow (Dynamics), Leakage flows, Stators, Wells, Clearances (Engineering), Compressors, Temperature, Rotors, Cavity flows
Journal Articles

Detection of Machinery Failure Signs From Big Time-Series Data Obtained by Flow Simulation of Intermediate-Pressure Steam Turbines

Kazuhiko Komatsu, Hironori Miyazawa, Cheng Yiran, Masayuki Sato, Takashi Furusawa, Satoru Yamamoto, Hiroaki Kobayashi
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2022, 144(1): 011007.
Paper No: GTP-21-1364
DOI: https://doi.org/10.1115/1.4052142
Published Online: October 13, 2021
View Article titled, Detection of Machinery Failure Signs From Big Time-Series Data Obtained by Flow Simulation of Intermediate-Pressure Steam Turbines
Click here to open pdf in another window PDF for Detection of Machinery Failure Signs From Big Time-Series Data Obtained by Flow Simulation of Intermediate-Pressure Steam Turbines
Topics: Blades, Computer simulation, Failure, Flow (Dynamics), Machinery, Pressure, Rotors, Stators, Steam turbines, Time series
Journal Articles

Investigation on the Robustness of Rotor/Stator Contact Interactions With Respect to Small Mistuning

Florence Nyssen, Alain Batailly
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2021, 143(12): 121015.
Paper No: GTP-21-1287
DOI: https://doi.org/10.1115/1.4051957
Published Online: October 12, 2021
View Article titled, Investigation on the Robustness of Rotor/Stator Contact Interactions With Respect to Small Mistuning
Click here to open pdf in another window PDF for Investigation on the Robustness of Rotor/Stator Contact Interactions With Respect to Small Mistuning
Topics: Blades, Disks, Displacement, Engines, Simulation, Robustness, Rotors, Stators, Engineering simulation