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Journal Articles

Using Machine Learning for Loss Prediction in a Hybrid Meanline Modeling Method to Deliver Improved Radial Turbine Performance Prediction

Pangbo Ren, Charles Stuart, Stephen Spence, Ryosuke Inomata, Takayuki Kobayashi, Isao Morita
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2023, 145(7): 071013.
Paper No: TURBO-22-1300
DOI: https://doi.org/10.1115/1.4056777
Published Online: February 10, 2023
View Article titled, Using Machine Learning for Loss Prediction in a Hybrid Meanline Modeling Method to Deliver Improved Radial Turbine Performance Prediction
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Topics: Computational fluid dynamics, Flow (Dynamics), Geometry, Machine learning, Modeling, Rotors, Turbines, Nozzles, Turbochargers, Artificial neural networks
Journal Articles

On the Effect of Side Clearance in the Vaned Diffuser of a Centrifugal Compressor

Lee Gibson, Stephen Spence, Charles Stuart, Andre Starke, Sung In Kim
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2023, 145(7): 071006.
Paper No: TURBO-22-1334
DOI: https://doi.org/10.1115/1.4056714
Published Online: February 10, 2023
View Article titled, On the Effect of Side Clearance in the Vaned Diffuser of a Centrifugal Compressor
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Topics: Clearances (Engineering), Compressors, Computational fluid dynamics, Diffusers, Flow (Dynamics), Geometry, Pressure, Surges, Stability
Journal Articles

Collaborative Robust Design Optimization of Blade Geometry and Manufacturing Tolerance for a Transonic Centrifugal Impeller

Yiming Liu, Yaping Ju, Ruihong Qin, Wei Jiang, Stephen Spence, Chuhua Zhang
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2023, 145(7): 071001.
Paper No: TURBO-22-1123
DOI: https://doi.org/10.1115/1.4056680
Published Online: February 9, 2023
View Article titled, Collaborative Robust Design Optimization of Blade Geometry and Manufacturing Tolerance for a Transonic Centrifugal Impeller
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Topics: Blades, Design, Errors, Geometry, Impellers, Manufacturing, Optimization, Uncertainty quantification, Flow (Dynamics), Computational fluid dynamics
Journal Articles

Investigation of a Novel Turbine Housing to Produce a Nonuniform Spanwise Flow Field at the Inlet to a Mixed Flow Turbine and Provide Variable Geometry Capabilities

Richard Morrison, Stephen Spence, Charles Stuart, Sung In Kim, Andre Starke, Thomas Leonard
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. June 2023, 145(6): 061013.
Paper No: TURBO-22-1033
DOI: https://doi.org/10.1115/1.4056388
Published Online: January 30, 2023
View Article titled, Investigation of a Novel Turbine Housing to Produce a Nonuniform Spanwise Flow Field at the Inlet to a Mixed Flow Turbine and Provide Variable Geometry Capabilities
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Topics: Design, Flow (Dynamics), Rotors, Turbines, Geometry
Journal Articles

Aeromechanical Optimization of Scalloping in Mixed Flow Turbines

Matthew Elliott, Stephen Spence, Martin Seiler, Marco Geron
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051013.
Paper No: TURBO-22-1034
DOI: https://doi.org/10.1115/1.4056087
Published Online: December 6, 2022
View Article titled, Aeromechanical Optimization of Scalloping in Mixed Flow Turbines
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Topics: Blades, Design, Flow (Dynamics), Optimization, Rotors, Turbines, Vortices, Computational fluid dynamics, Cavities, Stress
Proceedings Papers

Investigation of the Map Width Improvement in a Radially Reduced Diffuser Design Concept for a Centrifugal Compressor

Laura McLaughlin, Stephen Spence, Daniel Rusch, Charles Stuart, Marco Geron, Kwok Kai So, Magnus Fischer
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A002, June 13–17, 2022
Paper No: GT2022-78684
DOI: https://doi.org/10.1115/GT2022-78684
View Paper titled, Investigation of the Map Width Improvement in a Radially Reduced Diffuser Design Concept for a Centrifugal Compressor
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Topics: Compressors, Computational fluid dynamics, Design, Diffusers
Proceedings Papers

Using Machine Learning for Loss Prediction in a Hybrid Meanline Modeling Method to Deliver Improved Radial Turbine Performance Prediction

Pangbo Ren, Charles Stuart, Stephen Spence, Ryosuke Inomata, Takayuki Kobayashi, Isao Morita
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A004, June 13–17, 2022
Paper No: GT2022-80186
DOI: https://doi.org/10.1115/GT2022-80186
View Paper titled, Using Machine Learning for Loss Prediction in a Hybrid Meanline Modeling Method to Deliver Improved Radial Turbine Performance Prediction
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Topics: Machine learning, Modeling, Turbines, Turbochargers
Proceedings Papers

On the Effect of Side Clearance in the Vaned Diffuser of a Centrifugal Compressor

Lee Gibson, Stephen Spence, Charles Stuart, Andre Starke, Sung In Kim
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A011, June 13–17, 2022
Paper No: GT2022-82423
DOI: https://doi.org/10.1115/GT2022-82423
View Paper titled, On the Effect of Side Clearance in the Vaned Diffuser of a Centrifugal Compressor
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Topics: Clearances (Engineering), Compressors, Diffusers
Journal Articles

Performance Improvement of a Mixed Flow Turbine Using 3D Blading

Matthew Elliott, Stephen Spence, Martin Seiler, Marco Geron
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2022, 144(10): 101004.
Paper No: TURBO-20-1400
DOI: https://doi.org/10.1115/1.4053855
Published Online: April 19, 2022
View Article titled, Performance Improvement of a Mixed Flow Turbine Using 3D Blading
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Topics: Blades, Design, Flow (Dynamics), Optimization, Turbines, Pressure, Entropy, Computational fluid dynamics
Proceedings Papers

Aeromechanical Optimization of Scalloping in Mixed Flow Turbines

Matthew Elliott, Stephen Spence, Martin Seiler, Marco Geron
Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT37A004, June 7–11, 2021
Paper No: GT2021-58901
DOI: https://doi.org/10.1115/GT2021-58901
View Paper titled, Aeromechanical Optimization of Scalloping in Mixed Flow Turbines
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Topics: Flow (Dynamics), Optimization, Turbines, Design, Inertia (Mechanics), Engines, Stress, Rotors, Transients (Dynamics), Turbochargers
Proceedings Papers

Investigation of a Novel Turbine Housing to Produce a Non-Uniform Spanwise Flow Field at the Inlet to a Mixed Flow Turbine and Provide Variable Geometry Capabilities

Richard Morrison, Charles Stuart, Sung In Kim, Stephen Spence, Andre Starke, Thomas Leonard
Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT37A007, June 7–11, 2021
Paper No: GT2021-59382
DOI: https://doi.org/10.1115/GT2021-59382
View Paper titled, Investigation of a Novel Turbine Housing to Produce a Non-Uniform Spanwise Flow Field at the Inlet to a Mixed Flow Turbine and Provide Variable Geometry Capabilities
Open the PDF for Investigation of a Novel Turbine Housing to Produce a Non-Uniform Spanwise Flow Field at the Inlet to a Mixed Flow Turbine and Provide Variable Geometry Capabilities in another window
Topics: Flow (Dynamics), Geometry, Turbines, Design, Engines, Flow separation, Rotors, Transients (Dynamics), Turbochargers, Automotive engines
Journal Articles

Metamodel-Driven Data Mining Model to Support Three-Dimensional Design of Centrifugal Compressor Stage

Ruihong Qin, Yaping Ju, Stephen Spence, Chuhua Zhang
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. December 2021, 143(12): 121013.
Paper No: TURBO-21-1002
DOI: https://doi.org/10.1115/1.4051713
Published Online: July 27, 2021
View Article titled, Metamodel-Driven Data Mining Model to Support Three-Dimensional Design of Centrifugal Compressor Stage
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Topics: Compressors, Data mining, Design, Geometry, Metamodeling, Impellers, Pressure, Flow (Dynamics), Computational fluid dynamics
Journal Articles

Effect of Boundary Layer Suction on the Corner Separation in a Highly Loaded Axial Compressor Cascade

Tian Liang, Bo Liu, Stephen Spence
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. June 2021, 143(6): 061002.
Paper No: TURBO-20-1251
DOI: https://doi.org/10.1115/1.4050148
Published Online: April 7, 2021
View Article titled, Effect of Boundary Layer Suction on the Corner Separation in a Highly Loaded Axial Compressor Cascade
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Topics: Cascades (Fluid dynamics), Corners (Structural elements), Separation (Technology), Suction, Blades, Boundary layers, Compressors, Flow (Dynamics), Pressure
Proceedings Papers

Performance Improvement of a Mixed Flow Turbine Using 3D Blading

Matthew Elliott, Stephen Spence, Martin Seiler, Marco Geron
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A030, September 21–25, 2020
Paper No: GT2020-16272
DOI: https://doi.org/10.1115/GT2020-16272
View Paper titled, Performance Improvement of a Mixed Flow Turbine Using 3D Blading
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Topics: Flow (Dynamics), Turbines, Blades, Design, Optimization, Shapes, Wheels, Geometry, Stress, Diffusers
Proceedings Papers

An Investigation Into the Effect of Clearance Aspect Ratio on the Performance of a Variable Geometry Vaned Diffuser for Automotive Turbocharger Application

Lee Gibson, Stephen Spence, Sung In Kim, Charles Stuart, Martin Schwitzke, Andre Starke, Dietmar Filsinger
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A019, September 21–25, 2020
Paper No: GT2020-14905
DOI: https://doi.org/10.1115/GT2020-14905
View Paper titled, An Investigation Into the Effect of Clearance Aspect Ratio on the Performance of a Variable Geometry Vaned Diffuser for Automotive Turbocharger Application
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Topics: Clearances (Engineering), Diffusers, Geometry, Turbochargers, Compressors, Flow (Dynamics), Design, Engines, Engineering simulation, Impellers
Proceedings Papers

Impact of Realistic Manufacturing Uncertainties on the Aerodynamic Performance of a Transonic Centrifugal Impeller

Yiming Liu, Ruihong Qin, Yaping Ju, Stephen Spence, Chuhua Zhang
Proc. ASME. GT2020, Volume 2D: Turbomachinery, V02DT38A012, September 21–25, 2020
Paper No: GT2020-14784
DOI: https://doi.org/10.1115/GT2020-14784
View Paper titled, Impact of Realistic Manufacturing Uncertainties on the Aerodynamic Performance of a Transonic Centrifugal Impeller
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Topics: Flow (Dynamics), Impellers, Manufacturing, Uncertainty, Uncertainty quantification
Proceedings Papers

Effect of Boundary Layer Suction on the Corner Separation in a Highly Loaded Axial Compressor Cascade

Tian Liang, Bo Liu, Stephen Spence
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A022, September 21–25, 2020
Paper No: GT2020-14566
DOI: https://doi.org/10.1115/GT2020-14566
View Paper titled, Effect of Boundary Layer Suction on the Corner Separation in a Highly Loaded Axial Compressor Cascade
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Topics: Boundary layers, Cascades (Fluid dynamics), Compressors, Corners (Structural elements), Separation (Technology), Suction
Journal Articles

Evaluating the Use of Leaned Stator Vanes to Produce a Non-Uniform Flow Distribution Across the Inlet Span of a Mixed Flow Turbine Rotor

Richard Morrison, Stephen Spence, Sung In Kim, Thomas Leonard, Andre Starke
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. December 2020, 142(12): 121001.
Paper No: TURBO-20-1088
DOI: https://doi.org/10.1115/1.4047811
Published Online: October 19, 2020
View Article titled, Evaluating the Use of Leaned Stator Vanes to Produce a Non-Uniform Flow Distribution Across the Inlet Span of a Mixed Flow Turbine Rotor
Open the PDF for Evaluating the Use of Leaned Stator Vanes to Produce a Non-Uniform Flow Distribution Across the Inlet Span of a Mixed Flow Turbine Rotor in another window
Topics: Design, Flow (Dynamics), Rotors, Stators, Turbines, Blades, Computational fluid dynamics
Journal Articles

High Dimensional Matching Optimization of Impeller–Vaned Diffuser Interaction for a Centrifugal Compressor Stage

Ruihong Qin, Yaping Ju, Lee Galloway, Stephen Spence, Chuhua Zhang
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. December 2020, 142(12): 121004.
Paper No: TURBO-19-1213
DOI: https://doi.org/10.1115/1.4047898
Published Online: October 19, 2020
View Article titled, High Dimensional Matching Optimization of Impeller–Vaned Diffuser Interaction for a Centrifugal Compressor Stage
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Topics: Design, Diffusers, Impellers, Optimization, Flow (Dynamics), Compressors
Journal Articles

Design and Performance Analysis of Mixed Flow Turbine Rotors With Extended Blade Chord

Thomas Leonard, Stephen Spence, Dietmar Filsinger, Andre Starke
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. December 2020, 142(12): 121003.
Paper No: TURBO-20-1089
DOI: https://doi.org/10.1115/1.4047894
Published Online: October 19, 2020
View Article titled, Design and Performance Analysis of Mixed Flow Turbine Rotors With Extended Blade Chord
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Topics: Blades, Chords (Trusses), Design, Flow (Dynamics), Rotors, Turbines