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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
Article Type: Research Papers
J. Turbomach. July 2023, 145(7): 071016.
Paper No: TURBO-21-1151
DOI: https://doi.org/10.1115/1.4056933
Published Online: March 6, 2023
View Article titled, Accounting for Circumferential Flow Nonuniformity in a Multistage Axial Compressor
Click here to open pdf in another window PDF for Accounting for Circumferential Flow Nonuniformity in a Multistage Axial Compressor
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
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051003.
Paper No: TURBO-22-1146
DOI: https://doi.org/10.1115/1.4055866
Published Online: November 8, 2022
View Article titled, Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser—Part I: Surge Signature
Click here to open pdf in another window PDF for Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser—Part I: Surge Signature
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
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051004.
Paper No: TURBO-22-1147
DOI: https://doi.org/10.1115/1.4055865
Published Online: November 8, 2022
View Article titled, Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser: Part II—Correlation With Subcomponent Characteristics
Click here to open pdf in another window PDF for Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser: Part II—Correlation With Subcomponent Characteristics
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
Paper No: GT2022-82686
DOI: 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
Click here to open pdf in another window PDF for Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser: Part 2 – Correlation With Subcomponent Characteristics
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
Paper No: GT2022-82682
DOI: 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
Click here to open pdf in another window PDF for Investigation of Surge in a Transonic Centrifugal Compressor With Vaned Diffuser: Part 1 – Surge Signature
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
Article Type: Research Papers
J. Turbomach. November 2022, 144(11): 111011.
Paper No: TURBO-22-1110
DOI: https://doi.org/10.1115/1.4055151
Published Online: September 13, 2022
View Article titled, On Choosing the Optimal Impeller Exit Velocity Triangles in Preliminary Design
Click here to open pdf in another window PDF for On Choosing the Optimal Impeller Exit Velocity Triangles in Preliminary Design
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
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
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
Paper No: GT2021-60103
DOI: 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
Click here to open pdf in another window PDF for Details of Shrouded Stator Hub Cavity Flow in a Multi-Stage Axial Compressor Part 1: Interactions With the Primary Flow
Topics: Cavity flows, Compressors, Flow (Dynamics), Leakage flows, Stators
Proceedings Papers

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

Nitya Kamdar, Fangyuan Lou, Nicole L. Key
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A042, June 7–11, 2021
Paper No: GT2021-60115
DOI: https://doi.org/10.1115/GT2021-60115
View Paper titled, Details of Shrouded Stator Hub Cavity Flow in a Multi-Stage 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 Multi-Stage Axial Compressor Part 2: Leakage Flow Characteristics in Stator Wells
Topics: Cavity flows, Compressors, Leakage flows, Stators, Wells
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
Paper No: GT2021-59968
DOI: https://doi.org/10.1115/GT2021-59968
View Paper titled, Accounting for Circumferential Flow Nonuniformity in a Multi-Stage Axial Compressor
Click here to open pdf in another window PDF for Accounting for Circumferential Flow Nonuniformity in a Multi-Stage Axial Compressor
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
Paper No: GT2021-59210
DOI: https://doi.org/10.1115/GT2021-59210
View Paper titled, On Choosing the Optimal Impeller Exit Velocity Triangles in Preliminary Design
Click here to open pdf in another window PDF for On Choosing the Optimal Impeller Exit Velocity Triangles in Preliminary Design
Topics: Compressors, Design, Impellers
Journal Articles

The Impact of Various Modeling Decisions on Flow Field Predictions in a Centrifugal Compressor

William J. Gooding, Matthew A. Meier, Nicole L. Key
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2021, 143(10): 101006.
Paper No: TURBO-20-1390
DOI: https://doi.org/10.1115/1.4050674
Published Online: May 17, 2021
View Article titled, The Impact of Various Modeling Decisions on Flow Field Predictions in a Centrifugal Compressor
Click here to open pdf in another window PDF for The Impact of Various Modeling Decisions on Flow Field Predictions in a Centrifugal Compressor
Topics: Compressors, Diffusers, Flow (Dynamics), Heat transfer, Modeling, Pressure, Surface roughness, Turbulence, Simulation, Design
Journal Articles

Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data—Part 1: Methodology and Sensitivity Analysis

Fangyuan Lou, Nicole L. Key
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. August 2021, 143(8): 081002.
Paper No: TURBO-20-1349
DOI: https://doi.org/10.1115/1.4050433
Published Online: April 26, 2021
View Article titled, Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data—Part 1: Methodology and Sensitivity Analysis
Click here to open pdf in another window PDF for Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data—Part 1: Methodology and Sensitivity Analysis
Topics: Approximation, Compressors, Errors, Flow (Dynamics), Particle swarm optimization, Probes, Signals, Wavelets, Sensitivity analysis, Design
Journal Articles

Reconstructing Compressor Nonuniform Circumferential Flow Field From Spatially Undersampled Data—Part 2: Practical Application for Experiments

Fangyuan Lou, Douglas R. Matthews, Nicholas J. Kormanik, III, Nicole L. Key
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. August 2021, 143(8): 081003.
Paper No: TURBO-20-1350
DOI: https://doi.org/10.1115/1.4050434
Published Online: April 26, 2021
View Article titled, Reconstructing Compressor Nonuniform Circumferential Flow Field From Spatially Undersampled Data—Part 2: Practical Application for Experiments
Click here to open pdf in another window PDF for Reconstructing Compressor Nonuniform Circumferential Flow Field From Spatially Undersampled Data—Part 2: Practical Application for Experiments
Topics: Approximation, Compressors, Diffusers, Flow (Dynamics), Pressure, Wavelets, Stators
Journal Articles

A New Approach to Modeling Slip and Work Input for Centrifugal Compressors

Herbert M. Harrison, Nicole L. Key
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2021, 143(2): 021013.
Paper No: GTP-20-1715
DOI: https://doi.org/10.1115/1.4049412
Published Online: January 18, 2021
View Article titled, A New Approach to Modeling Slip and Work Input for Centrifugal Compressors
Click here to open pdf in another window PDF for A New Approach to Modeling Slip and Work Input for Centrifugal Compressors
Topics: Compressors, Design, Flow (Dynamics), Impellers, Modeling, Errors, Mach number, Machinery, Temperature
Proceedings Papers

Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data: Part 1 — Methodology and Sensitivity Analysis

Fangyuan Lou, Nicole L. Key
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A033, September 21–25, 2020
Paper No: GT2020-14867
DOI: https://doi.org/10.1115/GT2020-14867
View Paper titled, Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data: Part 1 — Methodology and Sensitivity Analysis
Click here to open pdf in another window PDF for Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data: Part 1 — Methodology and Sensitivity Analysis
Topics: Approximation, Compressors, Flow (Dynamics), Particle swarm optimization, Sensitivity analysis, Wavelets
Proceedings Papers

Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data: Part 2 — Practical Application for Experiments

Fangyuan Lou, Douglas R. Matthews, Nicholas J. Kormanik, III, Nicole L. Key
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A052, September 21–25, 2020
Paper No: GT2020-15465
DOI: https://doi.org/10.1115/GT2020-15465
View Paper titled, Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data: Part 2 — Practical Application for Experiments
Click here to open pdf in another window PDF for Reconstructing Compressor Non-Uniform Circumferential Flow Field From Spatially Undersampled Data: Part 2 — Practical Application for Experiments
Topics: Approximation, Compressors, Flow (Dynamics), Wavelets
Proceedings Papers

Nonlinear Response and Stability of an Experimental Overhung Compressor Mounted With a Squeeze Film Damper

William J. Gooding, Matthew A. Meier, Edgar J. Gunter, Nicole L. Key
Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT29A016, September 21–25, 2020
Paper No: GT2020-15212
DOI: https://doi.org/10.1115/GT2020-15212
View Paper titled, Nonlinear Response and Stability of an Experimental Overhung Compressor Mounted With a Squeeze Film Damper
Click here to open pdf in another window PDF for Nonlinear Response and Stability of an Experimental Overhung Compressor Mounted With a Squeeze Film Damper
Topics: Compressors, Dampers, Stability
Proceedings Papers

Compressor Stall Warning Using Nonlinear Feature Extraction Algorithms

Fangyuan Lou, Nicole L. Key
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A006, September 21–25, 2020
Paper No: GT2020-14247
DOI: https://doi.org/10.1115/GT2020-14247
View Paper titled, Compressor Stall Warning Using Nonlinear Feature Extraction Algorithms
Click here to open pdf in another window PDF for Compressor Stall Warning Using Nonlinear Feature Extraction Algorithms
Topics: Algorithms, Compressors, Entropy, Feature extraction, Surges
Proceedings Papers

A New Approach to Modeling Slip and Work Input for Centrifugal Compressors

Herbert M. Harrison, Nicole L. Key
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A003, September 21–25, 2020
Paper No: GT2020-14135
DOI: https://doi.org/10.1115/GT2020-14135
View Paper titled, A New Approach to Modeling Slip and Work Input for Centrifugal Compressors
Click here to open pdf in another window PDF for A New Approach to Modeling Slip and Work Input for Centrifugal Compressors
Topics: Compressor impellers, Compressors, Design, Modeling, Impellers, Errors, Flow (Dynamics), Geometry