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Journal Articles

ROBUST DESIGN OF HERRINGBONE GROOVED JOURNAL BEARINGS USING MULTI-OBJECTIVE OPTIMIZATION WITH ARTIFICIAL NEURAL NETWORKS

Accepted Manuscript
Soheyl Massoudi, Jurg Schiffmann
Journal: Journal of Turbomachinery
Article Type: Research Papers
Publisher: ASME
J. Turbomach.
Paper No: TURBO-23-1158
https://doi.org/10.1115/1.4063392
Published Online: September 11, 2023
View Article titled, ROBUST DESIGN OF HERRINGBONE GROOVED JOURNAL BEARINGS USING MULTI-OBJECTIVE OPTIMIZATION WITH ARTIFICIAL NEURAL NETWORKS
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Topics: Artificial neural networks, Design, Journal bearings, Pareto optimization, Turbochargers, Bearings, Rotors, Geometry, Manufacturing, Compressors
Journal Articles

Effects of Ribbed Surfaces on Profile Losses of Low-Pressure Turbine Blades

M. Dellacasagrande, D. Lengani, D. Simoni, M. Ubaldi, F. Bertini
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2023, 145(10): 101009.
Paper No: TURBO-22-1292
https://doi.org/10.1115/1.4063049
Published Online: August 16, 2023
View Article titled, Effects of Ribbed Surfaces on Profile Losses of Low-Pressure Turbine Blades
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Topics: Blades, Boundary layers, Cascades (Fluid dynamics), Flat plates, Geometry, Pressure, Reynolds number, Suction, Turbines, Turbulence
Journal Articles

Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor-Turbine Interface Geometry—Part I: Describing the Flow

Kedar P. Nawathe, Aaditya R. Nath, Yong W. Kim, Terrence W. Simon
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2023, 145(10): 101005.
Paper No: TURBO-22-1251
https://doi.org/10.1115/1.4056439
Published Online: August 2, 2023
View Article titled, Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor-Turbine Interface Geometry—Part I: Describing the Flow
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Topics: Combustion chambers, Coolants, Cooling, Flow (Dynamics), Turbines, Vortices, Vorticity, Engines, Geometry
Journal Articles

Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor–Turbine Interface Geometry Part II: Describing the Coolant Coverage

Kedar P. Nawathe, Aaditya R. Nath, Yong W. Kim, Terrence W. Simon
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2023, 145(10): 101006.
Paper No: TURBO-22-1252
https://doi.org/10.1115/1.4062802
Published Online: August 2, 2023
View Article titled, Turbine Vane Passage Cooling Experiments With a Close-Coupled Combustor–Turbine Interface Geometry Part II: Describing the Coolant Coverage
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Topics: Combustion chambers, Coolants, Cooling, Flow (Dynamics), Geometry, Phantom cooling, Pressure, Suction, Turbines, Vortices
Journal Articles

Turbine Endwall Contouring Through Advanced Optimization Techniques

M. Burigana, T. Verstraete, S. Lavagnoli
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. August 2023, 145(8): 081011.
Paper No: TURBO-22-1259
https://doi.org/10.1115/1.4062211
Published Online: April 12, 2023
View Article titled, Turbine Endwall Contouring Through Advanced Optimization Techniques
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Topics: Blades, B-splines, Design, Flow (Dynamics), Geometry, Optimization, Parametrization, Rotors, Turbines, High pressure (Physics)
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
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
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
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
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

Impact of Trailing Edge Overhang Length on the Loss Characteristics of Fully Cooled Transonic Nozzle Guide Vanes

Daniel Burdett, Thomas Povey
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051012.
Paper No: TURBO-21-1060
https://doi.org/10.1115/1.4056056
Published Online: December 6, 2022
View Article titled, Impact of Trailing Edge Overhang Length on the Loss Characteristics of Fully Cooled Transonic Nozzle Guide Vanes
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Topics: Boundary layers, Computational fluid dynamics, Flow (Dynamics), Geometry, Pressure, Vortex shedding, Wakes, Coolants, Design, Nozzle guide vanes
Journal Articles

New Concept for Design in Turbomachinery Applications Using Full RANS Gradient Methodology

Armando Del Rio, Ernesto Casartelli, Benno Fleischli, Luca Mangani
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. April 2023, 145(4): 041009.
Paper No: TURBO-22-1256
https://doi.org/10.1115/1.4055869
Published Online: November 7, 2022
View Article titled, New Concept for Design in Turbomachinery Applications Using Full RANS Gradient Methodology
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Topics: Compressors, Computational fluid dynamics, Deformation, Design, Diffusers, Flow (Dynamics), Geometry, Machinery, Optimization, Pressure
Journal Articles

Metamodel-Interpreted Data Mining for Stability and Efficiency Enhancement of Multistage Axial-Flow Compressors

Xiawen Zhang, Yaping Ju, Zhen Li, Feng Liu, Chuhua Zhang
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. April 2023, 145(4): 041001.
Paper No: TURBO-22-1056
https://doi.org/10.1115/1.4055766
Published Online: November 3, 2022
View Article titled, Metamodel-Interpreted Data Mining for Stability and Efficiency Enhancement of Multistage Axial-Flow Compressors
Open the PDF for Metamodel-Interpreted Data Mining for Stability and Efficiency Enhancement of Multistage Axial-Flow Compressors in another window
Topics: Axial flow, Blades, Compressors, Data mining, Design, Stability, Stators, Computational fluid dynamics, Geometry
Journal Articles

Unsteady Gas Dynamics of Radial Turbine Volutes Under Pressure Pulsations

Bijie Yang, Yingxian Xue, Ricardo Martinez-Botas, Mingyang Yang
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. March 2023, 145(3): 031013.
Paper No: TURBO-22-1223
https://doi.org/10.1115/1.4055644
Published Online: October 20, 2022
View Article titled, Unsteady Gas Dynamics of Radial Turbine Volutes Under Pressure Pulsations
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Topics: Computational fluid dynamics, Flow (Dynamics), Pressure, Rotors, Turbines, Geometry
Journal Articles

Uncertainty Quantification on the Cooling Performance of a Transonic Turbine Vane With Upstream Endwall Misalignment

Mingyang Hao, Bo Bai, Yuanyuan Li, Zhigang Li, Jun Li
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. December 2022, 144(12): 121004.
Paper No: TURBO-22-1124
https://doi.org/10.1115/1.4055269
Published Online: September 15, 2022
View Article titled, Uncertainty Quantification on the Cooling Performance of a Transonic Turbine Vane With Upstream Endwall Misalignment
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Topics: Coolants, Cooling, Film cooling, Flow (Dynamics), Phantom cooling, Pressure, Uncertainty quantification, Geometry, Design, Uncertainty
Journal Articles

An Iterative Neural Operator to Predict the Thermo-Fluid Information in Internal Cooling Channels

Li Yang, Qi Wang, Yu Rao
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. December 2022, 144(12): 121005.
Paper No: TURBO-22-1128
https://doi.org/10.1115/1.4055335
Published Online: September 15, 2022
View Article titled, An Iterative Neural Operator to Predict the Thermo-Fluid Information in Internal Cooling Channels
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Topics: Artificial neural networks, Cooling, Errors, Heat flux, Heat transfer, Partial differential equations, Physics, Pressure, Temperature, Thermofluids
Journal Articles

Fan Stability With Leading Edge Damage: Blind Prediction and Validation

E. J. Gunn, T. Brandvik, M. J. Wilson, R. Maxwell
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. September 2022, 144(9): 091015.
Paper No: TURBO-22-1072
https://doi.org/10.1115/1.4054970
Published Online: August 1, 2022
View Article titled, Fan Stability With Leading Edge Damage: Blind Prediction and Validation
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Topics: Blades, Computational fluid dynamics, Damage, Flow (Dynamics), Pressure, Rotors, Simulation, Stability, Stall inception, Separation (Technology)
Journal Articles

Investigating the Influence of Mainstream Turbulence and Large Vortices on Gas Turbine Trenched Film Cooling Flows Using Planar Temperature-Velocity Imaging

Michael Straußwald, Tobias Sander, Christopher Abram, Michael Pfitzner
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2022, 144(10): 101013.
Paper No: TURBO-21-1260
https://doi.org/10.1115/1.4054215
Published Online: July 4, 2022
View Article titled, Investigating the Influence of Mainstream Turbulence and Large Vortices on Gas Turbine Trenched Film Cooling Flows Using Planar Temperature-Velocity Imaging
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Topics: Cooling, Film cooling, Flow (Dynamics), Temperature, Turbulence, Momentum, Geometry, Vortices
Journal Articles

Numerical Calibration and Investigation of the Influence of Reynolds Number on Measurements With Five-Hole Probes in Compressible Flows

Christian Schäffer, Konstantin Speck, Volker Gümmer
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. September 2022, 144(9): 091010.
Paper No: TURBO-21-1169
https://doi.org/10.1115/1.4053835
Published Online: March 4, 2022
View Article titled, Numerical Calibration and Investigation of the Influence of Reynolds Number on Measurements With Five-Hole Probes in Compressible Flows
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Topics: Calibration, Pressure, Probes, Reynolds number, Yaw, Errors, Geometry
Journal Articles

Reduced-Order Models for Effusion Modeling in Gas Turbine Combustors

Simone Paccati, Lorenzo Mazzei, Antonio Andreini, Bruno Facchini
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. August 2022, 144(8): 081013.
Paper No: TURBO-21-1210
https://doi.org/10.1115/1.4053837
Published Online: March 4, 2022
View Article titled, Reduced-Order Models for Effusion Modeling in Gas Turbine Combustors
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Topics: Combustion chambers, Computational fluid dynamics, Coolants, Flow (Dynamics), Modeling, Reynolds-averaged Navier–Stokes equations, Simulation, Turbulence, Experimental design, Gas turbines
Journal Articles

A Comprehensive Analytical Shock Loss Model for Axial Compressor Cascades

Milan Banjac, Teodora Savanovic, Djordje Petkovic, Milan V. Petrovic
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. September 2022, 144(9): 091003.
Paper No: TURBO-22-1012
https://doi.org/10.1115/1.4053852
Published Online: March 4, 2022
View Article titled, A Comprehensive Analytical Shock Loss Model for Axial Compressor Cascades
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Topics: Flow (Dynamics), Geometry, Mach number, Pressure, Shock (Mechanics), Blades, Cascades (Fluid dynamics), Airfoils, Compressors