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Nicole L. Key
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Journal Articles

Unsteady Flow Development and Reynolds Stress Measurements in a Centrifugal Compressor Vaned Diffuser

Matthew A. Meier, William J. Gooding, Nicole L. Key
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2025, 147(10): 101002.
Paper No: TURBO-24-1221
https://doi.org/10.1115/1.4067885
Published Online: February 28, 2025
View Articletitled, Unsteady Flow Development and Reynolds Stress Measurements in a Centrifugal Compressor Vaned Diffuser
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Topics: Compressors, Diffusers, Flow (Dynamics), Impellers, Reynolds stress, Turbulence, Computer simulation, Blades
Journal Articles

An Analytical Study on the Effects of Non-Uniform Vane Spacing on Forced Response Reduction in a Mistuned Blisk Rotor in a Multistage Axial Compressor

Yujun Leng, Jhansi R. Dodda, Nicole L. Key
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. February 2025, 147(2): 021009.
Paper No: TURBO-24-1219
https://doi.org/10.1115/1.4066452
Published Online: October 8, 2024
View Articletitled, An Analytical Study on the Effects of Non-Uniform Vane Spacing on Forced Response Reduction in a Mistuned Blisk Rotor in a Multistage Axial Compressor
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Topics: Bladed disks, Blades, Damping, Excitation, Stators, Rotors
Journal Articles

An Experimental Study on the Effects of Nonuniform Vane Spacing on Forced Response Reduction in a Mistuned Rotor Blisk in a Multistage Axial Compressor

Yujun Leng, Jhansi R. Dodda, Nicole L. Key
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. February 2025, 147(2): 021010.
Paper No: TURBO-24-1220
https://doi.org/10.1115/1.4066475
Published Online: October 8, 2024
View Articletitled, An Experimental Study on the Effects of Nonuniform Vane Spacing on Forced Response Reduction in a Mistuned Rotor Blisk in a Multistage Axial Compressor
Open the PDF for An Experimental Study on the Effects of Nonuniform Vane Spacing on Forced Response Reduction in a Mistuned Rotor Blisk in a Multistage Axial Compressor in another window
Topics: Blades, Excitation, Rotors, Stators, Bladed disks, Compressors
Journal Articles

Development of an Additively Manufactured Stationary Diffusion System for a Research Aeroengine Centrifugal Compressor

Jack T. Clement, Adam T. Coon, Nicole L. Key
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2025, 147(3): 031004.
Paper No: TURBO-24-1222
https://doi.org/10.1115/1.4066563
Published Online: October 8, 2024
View Articletitled, Development of an Additively Manufactured Stationary Diffusion System for a Research Aeroengine Centrifugal Compressor
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Topics: Additive manufacturing, Compressors, Diffusers, Diffusion (Physics), Instrumentation, Manufacturing, Pressure, Resins, Temperature, Stereolithography
Proceedings Papers

Unsteady Flow Development and Reynolds Stress Measurements in a Centrifugal Compressor Vaned Diffuser

Matthew A. Meier, William J. Gooding, Nicole L. Key
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT35A015, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125827
https://doi.org/10.1115/GT2024-125827
View Paper titled, Unsteady Flow Development and Reynolds Stress Measurements in a Centrifugal Compressor Vaned Diffuser
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Topics: Compressors, Computational fluid dynamics, Diffusers, Reynolds stress, Unsteady flow
Proceedings Papers

An Analytical Study on the Effect of Non-Uniform Vane Spacing on Forced Response Reduction in a Mistuned Blisk Rotor in a Multistage Axial Compressor

Yujun Leng, Jhansi R. Dodda, Nicole L. Key
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A023, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-134043
https://doi.org/10.1115/GT2024-134043
View Paper titled, An Analytical Study on the Effect of Non-Uniform Vane Spacing on Forced Response Reduction in a Mistuned Blisk Rotor in a Multistage Axial Compressor
Open the PDF for An Analytical Study on the Effect of Non-Uniform Vane Spacing on Forced Response Reduction in a Mistuned Blisk Rotor in a Multistage Axial Compressor in another window
Topics: Bladed disks, Compressors, Damping, Rotors, Blades, Stators, Excitation, Design, Engines, Optimization
Proceedings Papers

Development of an Additively Manufactured Stationary Diffusion System for a Research Aeroengine Centrifugal Compressor

Jack T. Clement, Adam T. Coon, Nicole L. Key
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT23A007, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125236
https://doi.org/10.1115/GT2024-125236
View Paper titled, Development of an Additively Manufactured Stationary Diffusion System for a Research Aeroengine Centrifugal Compressor
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Topics: Additive manufacturing, Compressors, Diffusers, Diffusion (Physics)
Proceedings Papers

An Experimental Study on the Effects of Non-Uniform Vane Spacing on Forced Response Reduction in a Mistuned Rotor Blisk in a Multistage Axial Compressor

Yujun Leng, Jhansi R. Dodda, Nicole L. Key
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A001, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-121838
https://doi.org/10.1115/GT2024-121838
View Paper titled, An Experimental Study on the Effects of Non-Uniform Vane Spacing on Forced Response Reduction in a Mistuned Rotor Blisk in a Multistage Axial Compressor
Open the PDF for An Experimental Study on the Effects of Non-Uniform Vane Spacing on Forced Response Reduction in a Mistuned Rotor Blisk in a Multistage Axial Compressor in another window
Topics: Bladed disks, Compressors, Damping, Rotors, Blades, Stators, Excitation, Engines, Flow (Dynamics), Fourier analysis
Proceedings Papers

The Effect of Temperature on the Forced Response of a Blisk Rotor With Inherent Mistuning

Jhansi Dodda, Yujun Leng, Nicole L. Key
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT27A037, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129258
https://doi.org/10.1115/GT2024-129258
View Paper titled, The Effect of Temperature on the Forced Response of a Blisk Rotor With Inherent Mistuning
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Topics: Bladed disks, Rotors, Strain gages, Temperature
Proceedings Papers

Development of a Transonic Fan Research Facility Focused on Casing Treatments and Inlet Distortion Effects

Andrew C. Cusator, William J. Brown, Yuning Dai, Andrew M. Bedke, Nicole L. Key
Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A031, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126747
https://doi.org/10.1115/GT2024-126747
View Paper titled, Development of a Transonic Fan Research Facility Focused on Casing Treatments and Inlet Distortion Effects
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Topics: Aerospace industry, Blades, Computer simulation, Design, Engines, Excitation, Exhaust systems, Fans, Flow (Dynamics), Flowmeters
Journal Articles

Accounting for Circumferential Flow Nonuniformity in a Multistage Axial Compressor

Fangyuan Lou, Douglas R. Matthews, Nicholas J. Kormanik, III, Nicole L. Key
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2023, 145(7): 071016.
Paper No: TURBO-21-1151
https://doi.org/10.1115/1.4056933
Published Online: March 6, 2023
View Articletitled, Accounting for Circumferential Flow Nonuniformity in a Multistage Axial Compressor
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Topics: Compressors, Flow (Dynamics), Pressure, Stators, Approximation, Wakes, Annulus
Journal Articles

Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser—Part I: Surge Signature

Fangyuan Lou, Herbert M. Harrison, Nicole L. Key
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051003.
Paper No: TURBO-22-1146
https://doi.org/10.1115/1.4055866
Published Online: November 8, 2022
View Articletitled, Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser—Part I: Surge Signature
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Topics: Compressors, Diffusers, Surges, Impellers, Pressure
Journal Articles

Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser: Part II—Correlation With Subcomponent Characteristics

Fangyuan Lou, Herbert M. Harrison, William J. Brown, Nicole L. Key
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051004.
Paper No: TURBO-22-1147
https://doi.org/10.1115/1.4055865
Published Online: November 8, 2022
View Articletitled, Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser: Part II—Correlation With Subcomponent Characteristics
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Topics: Compressors, Diffusers, Flow (Dynamics), Impellers, Pressure, Stability, Surges, Mach number, Shock (Mechanics)
Proceedings Papers

Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser: Part 2 – Correlation With Subcomponent Characteristics

Fangyuan Lou, Herbert M. Harrison, William J. Brown, Nicole L. Key
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A023, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82686
https://doi.org/10.1115/GT2022-82686
View Paper titled, Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser: Part 2 – Correlation With Subcomponent Characteristics
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Topics: Compressors, Diffusers, Stability, Surges
Proceedings Papers

Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser: Part 1 – Surge Signature

Fangyuan Lou, Herbert M. Harrison, Nicole L. Key
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A022, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82682
https://doi.org/10.1115/GT2022-82682
View Paper titled, Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser: Part 1 – Surge Signature
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Topics: Compressors, Diffusers, Stability, Surges
Journal Articles

On Choosing the Optimal Impeller Exit Velocity Triangles in Preliminary Design

Fangyuan Lou, Nicole L. Key
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. November 2022, 144(11): 111011.
Paper No: TURBO-22-1110
https://doi.org/10.1115/1.4055151
Published Online: September 13, 2022
View Articletitled, On Choosing the Optimal Impeller Exit Velocity Triangles in Preliminary Design
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Topics: Design, Impellers, Pressure, Diffusion (Physics)
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
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2022, 144(1): 011027.
Paper No: GTP-21-1334
https://doi.org/10.1115/1.4051958
Published Online: November 2, 2021
View Articletitled, Details of Shrouded Stator Hub Cavity Flow in a Multistage Axial Compressor Part 2: Leakage Flow Characteristics in Stator Wells
Open the PDF for Details of Shrouded Stator Hub Cavity Flow in a Multistage Axial Compressor Part 2: Leakage Flow Characteristics in Stator Wells in another window
Topics: Cavities, Flow (Dynamics), Leakage flows, Stators, Wells, Clearances (Engineering), Compressors, Temperature, Rotors, Cavity flows
Proceedings Papers

Accounting for Circumferential Flow Nonuniformity in a Multi-Stage Axial Compressor

Fangyuan Lou, Douglas R. Matthews, Nicholas J. Kormanik, III, Nicole L. Key
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A039, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59968
https://doi.org/10.1115/GT2021-59968
View Paper titled, Accounting for Circumferential Flow Nonuniformity in a Multi-Stage Axial Compressor
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Topics: Accounting, Approximation, Compressors, Flow (Dynamics), Wavelets
Proceedings Papers

On Choosing the Optimal Impeller Exit Velocity Triangles in Preliminary Design

Fangyuan Lou, Nicole L. Key
Proc. ASME. GT2021, Volume 2C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V02CT34A017, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59210
https://doi.org/10.1115/GT2021-59210
View Paper titled, On Choosing the Optimal Impeller Exit Velocity Triangles in Preliminary Design
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Topics: Compressors, Design, Impellers
Proceedings Papers

Details of Shrouded Stator Hub Cavity Flow in a Multi-Stage Axial Compressor Part 1: Interactions With the Primary Flow

Nitya Kamdar, Fangyuan Lou, Nicole L. Key
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A041, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60103
https://doi.org/10.1115/GT2021-60103
View Paper titled, Details of Shrouded Stator Hub Cavity Flow in a Multi-Stage Axial Compressor Part 1: Interactions With the Primary Flow
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Topics: Cavity flows, Compressors, Flow (Dynamics), Leakage flows, Stators