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Journal Articles

Effects of High Rotational Speed On Leakage and Windage Heating of Staggered Labyrinth Seals with Smooth and Honeycomb Lands

Accepted Manuscript
Hao Liu, Guoqing Li, Li Ang, Zhang Shen, Hui Li, Xingen Lu
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-22-1676
DOI: https://doi.org/10.1115/1.4062480
Published Online: May 5, 2023
View Article titled, Effects of High Rotational Speed On Leakage and Windage Heating of Staggered Labyrinth Seals with Smooth and Honeycomb Lands
Click here to open pdf in another window PDF for Effects of High Rotational Speed On Leakage and Windage Heating of Staggered Labyrinth Seals with Smooth and Honeycomb Lands
Topics: Heating, Honeycomb structures, Leakage, Clearances (Engineering), Simulation, Aircraft engines, Computational fluid dynamics, Design, Heat, Kinetic energy
Journal Articles

A Novel Design of Rim Sealing Flow for Improving Sealing Effectiveness

Du Qiang, Wang Ruonan, Xie Lei, Liu Guang, Lian Zengyan
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2023, 145(7): 071003.
Paper No: GTP-22-1532
DOI: https://doi.org/10.1115/1.4056645
Published Online: February 27, 2023
View Article titled, A Novel Design of Rim Sealing Flow for Improving Sealing Effectiveness
Click here to open pdf in another window PDF for A Novel Design of Rim Sealing Flow for Improving Sealing Effectiveness
Topics: Flow (Dynamics), Sealing (Process), Clearances (Engineering)
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
Click here to open pdf in another window PDF for Numerical Investigation on the Leakage and Rotordynamic Characteristics for a Hole-Pattern Seal in Wet-Gas Conditions
Topics: Damping, Leakage, Numerical analysis, Pressure, Rotors, Stiffness, Clearances (Engineering), Leakage flows, Cavities, Oscillating frequencies
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
Click here to open pdf in another window PDF for Experimental Force Coefficients for a Fully-Partitioned Pocket Damper Seal and Comparison to Other Two Seal Types
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
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

A Stepped Shaft Labyrinth Seal Verses A Pocket Damper Seal: Leakage and Dynamic Force Coefficients Under Wet Gas Operation

Jose Torres, Luis San Andrés, Jing Yang
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2023, 145(1): 011006.
Paper No: GTP-22-1390
DOI: https://doi.org/10.1115/1.4055665
Published Online: October 19, 2022
View Article titled, A Stepped Shaft Labyrinth Seal Verses A Pocket Damper Seal: Leakage and Dynamic Force Coefficients Under Wet Gas Operation
Click here to open pdf in another window PDF for A Stepped Shaft Labyrinth Seal Verses A Pocket Damper Seal: Leakage and Dynamic Force Coefficients Under Wet Gas Operation
Topics: Clearances (Engineering), Dampers, Damping, Flow (Dynamics), Leakage, Pressure, Stiffness, Computational fluid dynamics, Excitation, Rotors
Journal Articles

The Inter-Bristle Pressure Field in a Large-Scale Brush Seal

Joshua P. Bowen, Matthew R. Jenkins, Aaron A. Bowsher, Peter F. Crudgington, Carl M. Sangan, James A. Scobie
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2022, 144(11): 111022.
Paper No: GTP-22-1356
DOI: https://doi.org/10.1115/1.4055458
Published Online: September 28, 2022
View Article titled, The Inter-Bristle Pressure Field in a Large-Scale Brush Seal
Click here to open pdf in another window PDF for The Inter-Bristle Pressure Field in a Large-Scale Brush Seal
Topics: Clearances (Engineering), Pressure, Rotors, Flow (Dynamics), Stress
Journal Articles

A Nonlinear Rotordynamics Model for Automotive Turbochargers Coupled to a Physical Model for A (Semi) Floating Ring Bearing System

Wonbae Jung, Luis San Andrés, Jungbae Kim
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2022, 144(11): 111002.
Paper No: GTP-22-1275
DOI: https://doi.org/10.1115/1.4055365
Published Online: September 20, 2022
View Article titled, A Nonlinear Rotordynamics Model for Automotive Turbochargers Coupled to a Physical Model for A (Semi) Floating Ring Bearing System
Click here to open pdf in another window PDF for A Nonlinear Rotordynamics Model for Automotive Turbochargers Coupled to a Physical Model for A (Semi) Floating Ring Bearing System
Topics: Bearings, Rotors, Clearances (Engineering)
Journal Articles

A New Interpretation of Hot Gas Ingress Through Turbine Rim Seals Influenced by Mainstream Annulus Swirl

Dimitrios Graikos, Hui Tang, Carl M. Sangan, Gary D. Lock, James A. Scobie
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2022, 144(11): 111005.
Paper No: GTP-22-1355
DOI: https://doi.org/10.1115/1.4055457
Published Online: September 20, 2022
View Article titled, A New Interpretation of Hot Gas Ingress Through Turbine Rim Seals Influenced by Mainstream Annulus Swirl
Click here to open pdf in another window PDF for A New Interpretation of Hot Gas Ingress Through Turbine Rim Seals Influenced by Mainstream Annulus Swirl
Topics: Annulus, Clearances (Engineering), Flow (Dynamics), Rotors, Turbines, Wheels, Pressure, Turbulence, Sealing (Process)
Journal Articles

The Application of the Arbitrary-Order Galerkin Reduction Method to the Dynamic Analysis of a Rotor With a Preloaded Single-Pad Foil-Air Bearing

Ibrahim Ghalayini, Philip Bonello
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2022, 144(9): 091015.
Paper No: GTP-22-1240
DOI: https://doi.org/10.1115/1.4055188
Published Online: August 26, 2022
View Article titled, The Application of the Arbitrary-Order Galerkin Reduction Method to the Dynamic Analysis of a Rotor With a Preloaded Single-Pad Foil-Air Bearing
Click here to open pdf in another window PDF for The Application of the Arbitrary-Order Galerkin Reduction Method to the Dynamic Analysis of a Rotor With a Preloaded Single-Pad Foil-Air Bearing
Topics: Clearances (Engineering), Foil bearings, Rotors, Vibration, Dynamic analysis, Equilibrium (Physics), Stability, Modal analysis, Damping, Simulation
Journal Articles

Rotor Stability Effects of Tilting Pad Journal Bearings With Assembled Clearance Asymmetry

Leonardo Urbiola-Soto, Paolo Pennacchi
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2022, 144(8): 081009.
Paper No: GTP-22-1010
DOI: https://doi.org/10.1115/1.4054606
Published Online: June 20, 2022
View Article titled, Rotor Stability Effects of Tilting Pad Journal Bearings With Assembled Clearance Asymmetry
Click here to open pdf in another window PDF for Rotor Stability Effects of Tilting Pad Journal Bearings With Assembled Clearance Asymmetry
Topics: Bearings, Clearances (Engineering), Rotors, Stability, Stiffness, Shells, Journal bearings, American Petroleum Institute, Manufacturing
Journal Articles

Static and Dynamic Characteristics of Journal Bearings Under Uncertainty: A Nonprobabilistic Perspective

Chao Fu, Weidong Zhu, Jiaojiao Ma, Fengshou Gu
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2022, 144(7): 071012.
Paper No: GTP-22-1040
DOI: https://doi.org/10.1115/1.4054376
Published Online: May 20, 2022
View Article titled, Static and Dynamic Characteristics of Journal Bearings Under Uncertainty: A Nonprobabilistic Perspective
Click here to open pdf in another window PDF for Static and Dynamic Characteristics of Journal Bearings Under Uncertainty: A Nonprobabilistic Perspective
Topics: Bearings, Journal bearings, Uncertainty, Viscosity, Clearances (Engineering), Pressure, Lubricants, Stress, Film thickness
Journal Articles

Static and Rotordynamic Characteristics for Two Types of Novel Hole-Pattern Seals Operating in Supercritical CO 2 Turbomachinery

Zhigang Li, Zhuocong Li, Jun Li, Zhenping Feng
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2022, 144(7): 071006.
Paper No: GTP-21-1636
DOI: https://doi.org/10.1115/1.4054374
Published Online: May 20, 2022
View Article titled, Static and Rotordynamic Characteristics for Two Types of Novel Hole-Pattern Seals Operating in Supercritical CO 2 Turbomachinery
Click here to open pdf in another window PDF for Static and Rotordynamic Characteristics for Two Types of Novel Hole-Pattern Seals Operating in Supercritical CO 2 Turbomachinery
Topics: Brakes, Cavities, Clearances (Engineering), Dampers, Damping, Fluids, Pressure, Rotors, Stiffness, Supercritical carbon dioxide
Journal Articles

Leakage Characteristics of a Novel Hole-Pattern Damping Seal With Dovetail-Like Diversion Grooves: Numerical Simulation and Experiment

Jinbo Jiang, Xuan Zhang, Wenjing Zhao, Yi Ma, Xudong Peng
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2022, 144(7): 071004.
Paper No: GTP-21-1605
DOI: https://doi.org/10.1115/1.4054371
Published Online: May 20, 2022
View Article titled, Leakage Characteristics of a Novel Hole-Pattern Damping Seal With Dovetail-Like Diversion Grooves: Numerical Simulation and Experiment
Click here to open pdf in another window PDF for Leakage Characteristics of a Novel Hole-Pattern Damping Seal With Dovetail-Like Diversion Grooves: Numerical Simulation and Experiment
Topics: Cavities, Damping, Leakage, Clearances (Engineering), Pressure, Sealing (Process), Computer simulation, Flow (Dynamics)
Journal Articles

Robustness Analysis on the Aerothermal Performance of Turbine Blade Squealer Tip

Ming Huang, Zhigang Li, Jun Li
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2022, 144(7): 071011.
Paper No: GTP-22-1029
DOI: https://doi.org/10.1115/1.4054377
Published Online: May 20, 2022
View Article titled, Robustness Analysis on the Aerothermal Performance of Turbine Blade Squealer Tip
Click here to open pdf in another window PDF for Robustness Analysis on the Aerothermal Performance of Turbine Blade Squealer Tip
Topics: Blades, Clearances (Engineering), Flow (Dynamics), Leakage flows, Temperature, Turbine blades, Uncertainty, Uncertainty quantification, Heat transfer, Polynomials
Journal Articles

Rotordynamic Characteristics of the Straight-Through Labyrinth Seal Based on the Applicability Analysis of Leakage Models Using Bulk-Flow Method

Tianhao Wang, Zhigang Li, Jun Li
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2022, 144(1): 011028.
Paper No: GTP-21-1430
DOI: https://doi.org/10.1115/1.4052267
Published Online: December 3, 2021
View Article titled, Rotordynamic Characteristics of the Straight-Through Labyrinth Seal Based on the Applicability Analysis of Leakage Models Using Bulk-Flow Method
Click here to open pdf in another window PDF for Rotordynamic Characteristics of the Straight-Through Labyrinth Seal Based on the Applicability Analysis of Leakage Models Using Bulk-Flow Method
Topics: Cavities, Clearances (Engineering), Damping, Flow (Dynamics), Leakage, Leakage flows, Pressure, Rotors, Sealing (Process), Stiffness
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

An Analytical Two-Phase Flow Model for Prediction of Leakage in Wet Gas Labyrinth Seals and Pocket Damper Seals. Is Simplicity Still Desired?

Jing Yang, Luis San Andrés
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2021, 143(12): 121016.
Paper No: GTP-21-1296
DOI: https://doi.org/10.1115/1.4051916
Published Online: October 12, 2021
View Article titled, An Analytical Two-Phase Flow Model for Prediction of Leakage in Wet Gas Labyrinth Seals and Pocket Damper Seals. Is Simplicity Still Desired?
Click here to open pdf in another window PDF for An Analytical Two-Phase Flow Model for Prediction of Leakage in Wet Gas Labyrinth Seals and Pocket Damper Seals. Is Simplicity Still Desired?
Topics: Dampers, Flow (Dynamics), Leakage, Pressure, Two-phase flow, Computational fluid dynamics, Blades, Cavities, Rotors, Clearances (Engineering)
Journal Articles

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

Ryota Takeuchi, Hidetsugu Ishimaru, Hideaki Yamashita, Takahiko Inoue, Shota Yabui, Tsuyoshi Inoue
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2021, 143(12): 121006.
Paper No: GTP-21-1342
DOI: https://doi.org/10.1115/1.4051986
Published Online: October 4, 2021
View Article titled, Numerical Evaluation and High-Speed Rotating Test on Circular Arc Spring Dampers for Centrifugal Compressors
Click here to open pdf in another window PDF for Numerical Evaluation and High-Speed Rotating Test on Circular Arc Spring Dampers for Centrifugal Compressors
Topics: Bearings, Cavitation, Compressors, Dampers, Damping, Excitation, Fluids, Springs, Pressure, Stiffness
Journal Articles

Effects of Increased Tooth Clearance on the Performance of a Labyrinth Seal With Oil-Rich Bubbly Laminar Flow

Min Zhang, Dara W. Childs
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2021, 143(11): 111007.
Paper No: GTP-21-1278
DOI: https://doi.org/10.1115/1.4051914
Published Online: September 27, 2021
View Article titled, Effects of Increased Tooth Clearance on the Performance of a Labyrinth Seal With Oil-Rich Bubbly Laminar Flow
Click here to open pdf in another window PDF for Effects of Increased Tooth Clearance on the Performance of a Labyrinth Seal With Oil-Rich Bubbly Laminar Flow
Topics: Clearances (Engineering), Flow (Dynamics), Leakage, Pumps, Rotors, Stiffness, Stators, Fluids, Pressure drop, Laminar flow