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Journal Articles

A Thermal Model for a Hybrid Gas Bearing System in Oil-Free Turbochargers

Accepted Manuscript
Wonbae Jung, Adolfo Delgado, Anthony Dudlo, Sang-Guk Kang, Chol-Bum M. Kweon
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-24-1519
https://doi.org/10.1115/1.4066588
Published Online: September 19, 2024
View Article titled, A Thermal Model for a Hybrid Gas Bearing System in Oil-Free Turbochargers
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Topics: Gas bearings, Turbochargers, Rotors, Temperature, Bearings, Thermal energy transport, Viscosity, Algorithms, Damping, Density
Journal Articles

Propulsion Aerodynamics for a Novel High-Speed Exhaust System

Spyros Tsentis, Ioannis Goulos, Simon Prince, Vassilios Pachidis, Vladeta Zmijanovic
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2023, 145(12): 121011.
Paper No: GTP-23-1339
https://doi.org/10.1115/1.4063416
Published Online: October 17, 2023
View Article titled, Propulsion Aerodynamics for a Novel High-Speed Exhaust System
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Topics: Cavities, Design, Drag (Fluid dynamics), Exhaust systems, Flow (Dynamics), Nozzles, Pressure, Aerodynamics, Flow separation, Separation (Technology)
Journal Articles

Novel Unmanned Aircraft System Propeller Design—Part 1: Using an Unloaded Tip to Reduce Power Requirements and Lower Generated Sound Levels for Propellers Designed for Minimum Induced Drag

Charles Wisniewski, Kenneth Van Treuren
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2023, 145(2): 021026.
Paper No: GTP-22-1386
https://doi.org/10.1115/1.4056015
Published Online: December 5, 2022
View Article titled, Novel Unmanned Aircraft System Propeller Design—Part 1: Using an Unloaded Tip to Reduce Power Requirements and Lower Generated Sound Levels for Propellers Designed for Minimum Induced Drag
Open the PDF for Novel Unmanned Aircraft System Propeller Design—Part 1: Using an Unloaded Tip to Reduce Power Requirements and Lower Generated Sound Levels for Propellers Designed for Minimum Induced Drag in another window
Topics: Design, Propellers, Sound pressure, Drag (Fluid dynamics)
Journal Articles

Estimation of Resultant Airframe Forces for a Variable Pitch Fan Operating in Reverse Thrust Mode

David John Rajendran, Richard Tunstall, Vassilios Pachidis
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2022, 144(12): 121017.
Paper No: GTP-22-1306
https://doi.org/10.1115/1.4055489
Published Online: October 14, 2022
View Article titled, Estimation of Resultant Airframe Forces for a Variable Pitch Fan Operating in Reverse Thrust Mode
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Topics: Aircraft, Engines, Flow (Dynamics), Thrust, Drag (Fluid dynamics)
Journal Articles

A Robust Procedure to Implement Dynamic Stall Models Into Actuator Line Methods for the Simulation of Vertical-Axis Wind Turbines

Pier Francesco Melani, Francesco Balduzzi, Alessandro Bianchini
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2021, 143(11): 111008.
Paper No: GTP-21-1279
https://doi.org/10.1115/1.4051909
Published Online: September 27, 2021
View Article titled, A Robust Procedure to Implement Dynamic Stall Models Into Actuator Line Methods for the Simulation of Vertical-Axis Wind Turbines
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Topics: Actuators, Airfoils, Blades, Computational fluid dynamics, Flow (Dynamics), Rotors, Simulation, Turbines, Vertical axis wind turbines, Drag (Fluid dynamics)
Journal Articles

Static and Rotordynamic Characteristics for Two Types of Novel Mixed Liquid Damper Seals With Hole-Pattern/Pocket-Textured Stator and Helically Grooved Rotor

Zhigang Li, Zhi Fang, Jun Li, Zhenping Feng
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2021, 143(4): 041019.
Paper No: GTP-20-1726
https://doi.org/10.1115/1.4049890
Published Online: February 26, 2021
View Article titled, Static and Rotordynamic Characteristics for Two Types of Novel Mixed Liquid Damper Seals With Hole-Pattern/Pocket-Textured Stator and Helically Grooved Rotor
Open the PDF for Static and Rotordynamic Characteristics for Two Types of Novel Mixed Liquid Damper Seals With Hole-Pattern/Pocket-Textured Stator and Helically Grooved Rotor in another window
Topics: Dampers, Drag (Fluid dynamics), Fluids, Leakage, Rotors, Stators, Stiffness, Damping, Numerical analysis, Flow (Dynamics)
Journal Articles

Combined Numerical and Experimental Study on the Use of Gurney Flaps for the Performance Enhancement of NACA0021 Airfoil in Static and Dynamic Conditions

Francesco Balduzzi, David Holst, Pier Francesco Melani, Felix Wegner, Christian Navid Nayeri, Giovanni Ferrara, Christian Oliver Paschereit, Alessandro Bianchini
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2021, 143(2): 021004.
Paper No: GTP-20-1410
https://doi.org/10.1115/1.4048908
Published Online: January 13, 2021
View Article titled, Combined Numerical and Experimental Study on the Use of Gurney Flaps for the Performance Enhancement of NACA0021 Airfoil in Static and Dynamic Conditions
Open the PDF for Combined Numerical and Experimental Study on the Use of Gurney Flaps for the Performance Enhancement of NACA0021 Airfoil in Static and Dynamic Conditions in another window
Topics: Airfoils, Blades, Computational fluid dynamics, Wind tunnels, Drag (Fluid dynamics), Flow (Dynamics), Vertical axis wind turbines, Reynolds number, Simulation
Journal Articles

Boundary Layer Ingestion Propulsion: A Review on Numerical Modeling

Luca Menegozzo, Ernesto Benini
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Review Articles
J. Eng. Gas Turbines Power. December 2020, 142(12): 120801.
Paper No: GTP-20-1184
https://doi.org/10.1115/1.4048174
Published Online: December 2, 2020
View Article titled, Boundary Layer Ingestion Propulsion: A Review on Numerical Modeling
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Topics: Aircraft, Boundary layers, Computational fluid dynamics, Design, Engines, Modeling, Propulsion, Thrust, Fans, Drag (Fluid dynamics)
Journal Articles

Pumping Loss of Shrouded Meshed Spur Gears

Michael J. Hurrell, Jerzy T. Sawicki
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2020, 142(11): 111003.
Paper No: GTP-20-1568
https://doi.org/10.1115/1.4048487
Published Online: October 15, 2020
View Article titled, Pumping Loss of Shrouded Meshed Spur Gears
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Topics: Clearances (Engineering), Computational fluid dynamics, Flow (Dynamics), Gears, Pressure, Spur gears, Stress, NASA, Drag (Fluid dynamics), Test facilities
Journal Articles

A Comparison of Static and Rotordynamic Characteristics for Two Types of Liquid Annular Seals With Parallelly Grooved Stator/Rotor

Zhigang Li, Zhi Fang, Jun Li
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2020, 142(9): 091012.
Paper No: GTP-20-1025
https://doi.org/10.1115/1.4048144
Published Online: August 31, 2020
View Article titled, A Comparison of Static and Rotordynamic Characteristics for Two Types of Liquid Annular Seals With Parallelly Grooved Stator/Rotor
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Topics: Damping, Pressure drop, Rotors, Stiffness, Whirls, Leakage flows, Fluids, Stators, Transients (Dynamics), Drag (Fluid dynamics)
Journal Articles

Effect of Pad and Liner Material Properties on the Static Load Performance of a Tilting Pad Thrust Bearing

Rasool Koosha, Luis San Andrés
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2019, 141(12): 121007.
Paper No: GTP-19-1510
https://doi.org/10.1115/1.4045278
Published Online: November 11, 2019
View Article titled, Effect of Pad and Liner Material Properties on the Static Load Performance of a Tilting Pad Thrust Bearing
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Topics: Bearings, Fluid films, Polymers, Rotors, Steel, Stress, Temperature, Deformation, Turbulence, Flow (Dynamics)
Journal Articles

A Multidimensional Extension of Balje Chart for Axial Flow Turbomachinery Using Artificial Intelligence-Based Meta-Models

Gino Angelini, Alessandro Corsini, Giovanni Delibra, Lorenzo Tieghi
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2019, 141(11): 111012.
Paper No: GTP-19-1439
https://doi.org/10.1115/1.4044935
Published Online: October 16, 2019
View Article titled, A Multidimensional Extension of Balje Chart for Axial Flow Turbomachinery Using Artificial Intelligence-Based Meta-Models
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Topics: Axial flow, Blades, Cascades (Fluid dynamics), Design, Principal component analysis, Turbomachinery, Fans, Flow (Dynamics), Artificial neural networks, Chords (Trusses)
Journal Articles

Analysis of Counter-Rotating Roller Bearing in Different Mounting Configurations

Wenjun Gao, Daniel Nelias, Zhenxia Liu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2019, 141(8): 081008.
Paper No: GTP-18-1023
https://doi.org/10.1115/1.4043216
Published Online: April 3, 2019
View Article titled, Analysis of Counter-Rotating Roller Bearing in Different Mounting Configurations
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Topics: Bearings, Deformation, Roller bearings, Rollers, Rotation, Stress, Drag (Fluid dynamics), Heat
Journal Articles

Experimental Analysis of a NACA 0021 Airfoil Section Through 180-Deg Angle of Attack at Low Reynolds Numbers for Use in Wind Turbine Analysis

D. Holst, B. Church, G. Pechlivanoglou, E. Tüzüner, J. Saverin, C. N. Nayeri, C. O. Paschereit
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2019, 141(4): 041012.
Paper No: GTP-18-1576
https://doi.org/10.1115/1.4041651
Published Online: November 19, 2018
View Article titled, Experimental Analysis of a NACA 0021 Airfoil Section Through 180-Deg Angle of Attack at Low Reynolds Numbers for Use in Wind Turbine Analysis
Open the PDF for Experimental Analysis of a NACA 0021 Airfoil Section Through 180-Deg Angle of Attack at Low Reynolds Numbers for Use in Wind Turbine Analysis in another window
Topics: Airfoils, Pressure, Reynolds number, Wind turbines, Experimental analysis, Wind tunnels, Drag (Fluid dynamics)
Journal Articles

Experimental Analysis of a NACA 0021 Airfoil Under Dynamic Angle of Attack Variation and Low Reynolds Numbers

D. Holst, B. Church, F. Wegner, G. Pechlivanoglou, C. N. Nayeri, C. O. Paschereit
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2019, 141(3): 031020.
Paper No: GTP-18-1434
https://doi.org/10.1115/1.4041146
Published Online: October 17, 2018
View Article titled, Experimental Analysis of a NACA 0021 Airfoil Under Dynamic Angle of Attack Variation and Low Reynolds Numbers
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Topics: Airfoils, Flow (Dynamics), Pressure, Reynolds number, Drag (Fluid dynamics), Experimental analysis
Journal Articles

A Thermoelastohydrodynamic Analysis for the Static Performance of High-Speed—Heavy Load Tilting-Pad Journal Bearing Operating in the Turbulent Flow Regime and Comparisons to Test Data

Hirotoshi Arihara, Yuki Kameyama, Yoshitaka Baba, Luis San Andrés
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2019, 141(2): 021023.
Paper No: GTP-18-1445
https://doi.org/10.1115/1.4041130
Published Online: October 4, 2018
View Article titled, A Thermoelastohydrodynamic Analysis for the Static Performance of High-Speed—Heavy Load Tilting-Pad Journal Bearing Operating in the Turbulent Flow Regime and Comparisons to Test Data
Open the PDF for A Thermoelastohydrodynamic Analysis for the Static Performance of High-Speed—Heavy Load Tilting-Pad Journal Bearing Operating in the Turbulent Flow Regime and Comparisons to Test Data in another window
Topics: Bearings, Deformation, Journal bearings, Pressure, Stress, Temperature, Turbulence, Flow (Dynamics), Laminar flow, Viscosity
Journal Articles

On the Leakage, Torque, and Dynamic Force Coefficients of Air in Oil (Wet) Annular Seal: A Computational Fluid Dynamics Analysis Anchored to Test Data

Luis San Andrés, Jing Yang, Xueliang Lu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2019, 141(2): 021008.
Paper No: GTP-18-1347
https://doi.org/10.1115/1.4040766
Published Online: September 21, 2018
View Article titled, On the Leakage, Torque, and Dynamic Force Coefficients of Air in Oil (Wet) Annular Seal: A Computational Fluid Dynamics Analysis Anchored to Test Data
Open the PDF for On the Leakage, Torque, and Dynamic Force Coefficients of Air in Oil (Wet) Annular Seal: A Computational Fluid Dynamics Analysis Anchored to Test Data in another window
Topics: Computational fluid dynamics, Flow (Dynamics), Leakage, Rotors, Stiffness, Damping, Pressure, Clearances (Engineering), Excitation, Hardening
Journal Articles

Dynamic Similarity in Turbine Deposition Testing and the Role of Pressure

C. Sacco, C. Bowen, R. Lundgreen, J. P. Bons, E. Ruggiero, J. Allen, J. Bailey
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2018, 140(10): 102605.
Paper No: GTP-17-1475
https://doi.org/10.1115/1.4038550
Published Online: July 5, 2018
View Article titled, Dynamic Similarity in Turbine Deposition Testing and the Role of Pressure
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Topics: Flow (Dynamics), Particulate matter, Pressure, Temperature, Reynolds number, Engines, Drag (Fluid dynamics)
Journal Articles

Investigation of Energy Loss on Fractional Deposition in Last Stages of Condensing Steam Turbine Due to Blade Shape and Moisture Droplet Size

Bidesh Sengupta, Chittatosh Bhattacharya
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2018, 140(7): 072601.
Paper No: GTP-17-1214
https://doi.org/10.1115/1.4038544
Published Online: April 12, 2018
View Article titled, Investigation of Energy Loss on Fractional Deposition in Last Stages of Condensing Steam Turbine Due to Blade Shape and Moisture Droplet Size
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Topics: Blades, Drops, Energy dissipation, Drag (Fluid dynamics), Steam turbines, Condensation, Pressure, Steam
Journal Articles

On the Influence of Lubricant Supply Conditions and Bearing Configuration to the Performance of (Semi) Floating Ring Bearing Systems for Turbochargers

Luis San Andrés, Feng Yu, Kostandin Gjika
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2018, 140(3): 032503.
Paper No: GTP-17-1298
https://doi.org/10.1115/1.4037920
Published Online: October 17, 2017
View Article titled, On the Influence of Lubricant Supply Conditions and Bearing Configuration to the Performance of (Semi) Floating Ring Bearing Systems for Turbochargers
Open the PDF for On the Influence of Lubricant Supply Conditions and Bearing Configuration to the Performance of (Semi) Floating Ring Bearing Systems for Turbochargers in another window
Topics: Bearings, Flow (Dynamics), Lubricants, Temperature, Heat, Pressure, Drag (Fluid dynamics), Turbochargers, Shear (Mechanics)