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Journal Articles

NUMERICAL ASSESSMENT OF AN AERODYNAMIC PROBE TO ENABLE SHORT FOCAL LENGTH LASER DIAGNOSTICS IN HIGH TEMPERATURE SUPERSONIC FLOWS BASED ON FLOW DISTURBANCE

Accepted Manuscript
Ignacio Lasala Aza, Aubrey McKelvy, James Braun, Guillermo Paniagua, Etienne Choquet, Thierry Andre, Francois Falempin
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach.
Paper No: TURBO-24-1297
https://doi.org/10.1115/1.4067379
Published Online: December 9, 2024
View Article titled, NUMERICAL ASSESSMENT OF AN AERODYNAMIC PROBE TO ENABLE SHORT FOCAL LENGTH LASER DIAGNOSTICS IN HIGH TEMPERATURE SUPERSONIC FLOWS BASED ON FLOW DISTURBANCE
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Topics: Flow (Dynamics), High temperature, Lasers, Probes, Supersonic flow, Turbochargers, Shapes, Computational fluid dynamics, Cooling, Shock (Mechanics)
Journal Articles

Effect of Ceramic Matrix Composites on the Thermal Efficiency of a Power Generation Turbine

Ashrit Tayade, Stephen Lynch
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2025, 147(5): 051011.
Paper No: TURBO-24-1137
https://doi.org/10.1115/1.4067026
Published Online: November 12, 2024
View Article titled, Effect of Ceramic Matrix Composites on the Thermal Efficiency of a Power Generation Turbine
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Topics: Ceramic matrix composites, Coolants, Cooling, Cycles, Temperature, Thermal efficiency, Turbines, Modeling, Compressors, Energy generation
Journal Articles

The Unsteady Shock-Boundary Layer Interaction in a Compressor Cascade - Part 2: High-Fidelity Simulation

Accepted Manuscript
Bjoern F. Klose, Christian Morsbach, Michael Bergmann, Edwin Joseph Munoz Lopez, Alexander Hergt, Edmund Kuegeler
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach.
Paper No: TURBO-24-1138
https://doi.org/10.1115/1.4067097
Published Online: November 7, 2024
View Article titled, The Unsteady Shock-Boundary Layer Interaction in a Compressor Cascade - Part 2: High-Fidelity Simulation
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Topics: Cascades (Fluid dynamics), Compressors, Design, Shock (Mechanics), Simulation, Turbochargers, Boundary layers, Computational fluid dynamics, Flow (Dynamics), Resolution (Optics)
Journal Articles

The Effect of Thermal Cycling on Deposition in an Impingement/Effusion Cooling Geometry

George J. Gogidze, Jeffrey P. Bons, Ryan Lundgreen
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2025, 147(4): 041008.
Paper No: TURBO-24-1214
https://doi.org/10.1115/1.4066812
Published Online: October 25, 2024
View Article titled, The Effect of Thermal Cycling on Deposition in an Impingement/Effusion Cooling Geometry
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Topics: Circuits, Cooling, Cycles, Dust, Flow (Dynamics), Coolants, Temperature, Pressure, Engines
Journal Articles

The Unsteady Shock-Boundary Layer Interaction in a Compressor Cascade – Part 3: Mechanisms of Shock Oscillation

Accepted Manuscript
Edwin Joseph Munoz Lopez, Alexander Hergt, Joachim Klinner, Bjoern F. Klose, Christian Willert, Volker Gümmer
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach.
Paper No: TURBO-24-1157
https://doi.org/10.1115/1.4066186
Published Online: August 7, 2024
View Article titled, The Unsteady Shock-Boundary Layer Interaction in a Compressor Cascade – Part 3: Mechanisms of Shock Oscillation
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Topics: Cascades (Fluid dynamics), Compressors, Oscillations, Shock (Mechanics), Turbochargers, Computational fluid dynamics, Pressure, Unsteady flow, Waves, Blades
Journal Articles

Nonlinear Flutter Analysis of Labyrinth Seals

Roque Corral, Michele Greco, Luis Matabuena
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2023, 145(7): 071007.
Paper No: TURBO-22-1326
https://doi.org/10.1115/1.4056701
Published Online: February 10, 2023
View Article titled, Nonlinear Flutter Analysis of Labyrinth Seals
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Topics: Cavities, Clearances (Engineering), Cycles, Flutter (Aerodynamics), Pressure, Stability, Vibration, Flow (Dynamics), Torsion
Journal Articles

A Fluid–Structure Interaction Tool Using a Van der Pol-Based Reduced-Order Model for Buffet and Nonsynchronous Vibrations

Richard Hollenbach, Robert Kielb, Kenneth Hall
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2023, 145(1): 011009.
Paper No: TURBO-22-1189
https://doi.org/10.1115/1.4055447
Published Online: October 7, 2022
View Article titled, A Fluid–Structure Interaction Tool Using a Van der Pol-Based Reduced-Order Model for Buffet and Nonsynchronous Vibrations
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Topics: Cycles, Cylinders, Fluid structure interaction, Fluids, Locks (Waterways), Oscillations, Phase shift, Simulation, Vibration, Turbomachinery
Journal Articles

Effective Clearance and Differential Gapping Impact on Seal Flutter Modeling and Validation

Roque Corral, Michele Greco, Almudena Vega
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2022, 144(7): 071010.
Paper No: TURBO-21-1238
https://doi.org/10.1115/1.4053290
Published Online: March 2, 2022
View Article titled, Effective Clearance and Differential Gapping Impact on Seal Flutter Modeling and Validation
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Topics: Cavities, Kinetic energy, Pressure, Stability, Clearances (Engineering), Simulation, Flutter (Aerodynamics), Flow (Dynamics), Discharge coefficient, Computational fluid dynamics
Journal Articles

Investigating Gas Turbine Internal Cooling Using Supercritical CO 2 at Higher Reynolds Numbers for Direct Fired Cycle Applications

Matthew Searle, Arnab Roy, James Black, Douglas Straub, Sridharan Ramesh
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2022, 144(1): 011007.
Paper No: TURBO-21-1148
https://doi.org/10.1115/1.4052138
Published Online: September 7, 2021
View Article titled, Investigating Gas Turbine Internal Cooling Using Supercritical CO 2 at Higher Reynolds Numbers for Direct Fired Cycle Applications
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Topics: Cooling, Flow (Dynamics), Friction, Gas turbines, Heat transfer, Reynolds number, Surface roughness, Computational fluid dynamics, Supercritical carbon dioxide, Uncertainty
Journal Articles

Quantitative Evaluation and Optimization of Feeding-Back Previous Cycles Information for Computational Fluid Dynamics Periodic Convergence

Jesus Contreras, Javier Crespo
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2021, 143(10): 101008.
Paper No: TURBO-20-1374
https://doi.org/10.1115/1.4050756
Published Online: May 17, 2021
View Article titled, Quantitative Evaluation and Optimization of Feeding-Back Previous Cycles Information for Computational Fluid Dynamics Periodic Convergence
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Topics: Boundary-value problems, Cycles, Optimization, Simulation, Computational fluid dynamics, Stators, Computation, Blades
Journal Articles

Pulsed Impingement Turbine Cooling and Its Effect on the Efficiency of Gas Turbines With Pressure Gain Combustion

Nicolai Neumann, Arne Berthold, Frank Haucke, Dieter Peitsch, Panagiotis Stathopoulos
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2021, 143(7): 071016.
Paper No: TURBO-20-1344
https://doi.org/10.1115/1.4050361
Published Online: April 26, 2021
View Article titled, Pulsed Impingement Turbine Cooling and Its Effect on the Efficiency of Gas Turbines With Pressure Gain Combustion
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Topics: Combustion, Cooling, Flow (Dynamics), Gas turbines, Impingement cooling, Pressure, Turbines, Cycles
Journal Articles

Higher Order Conceptual Model for Labyrinth Seal Flutter

Roque Corral, Michele Greco, Almudena Vega
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2021, 143(7): 071006.
Paper No: TURBO-20-1261
https://doi.org/10.1115/1.4050334
Published Online: April 9, 2021
View Article titled, Higher Order Conceptual Model for Labyrinth Seal Flutter
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Topics: Cavities, Computational fluid dynamics, Cycles, Flow (Dynamics), Flutter (Aerodynamics), Pressure, Stability, Torsion, Simulation, Vibration
Journal Articles

Flow Physics During Surge and Recovery of a Multi-Stage High-Speed Compressor

Fanzhou Zhao, John Dodds, Mehdi Vahdati
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2021, 143(6): 061008.
Paper No: TURBO-20-1241
https://doi.org/10.1115/1.4050240
Published Online: April 8, 2021
View Article titled, Flow Physics During Surge and Recovery of a Multi-Stage High-Speed Compressor
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Topics: Compressors, Flow (Dynamics), Surges, Inlet guide vanes, Pressure, Cycles
Journal Articles

Numerical Model of a Deep Surge Cycle in Low-Speed Centrifugal Compressor

Grzegorz Liśkiewicz, Michał Kulak, Krzysztof Sobczak, Matthew Stickland
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2020, 142(12): 121005.
Paper No: TURBO-20-1002
https://doi.org/10.1115/1.4048328
Published Online: November 9, 2020
View Article titled, Numerical Model of a Deep Surge Cycle in Low-Speed Centrifugal Compressor
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Topics: Cycles, Flow (Dynamics), Impellers, Pressure, Surges, Compressors, Diffusers, Simulation
Journal Articles

The Role of Turbomachinery Performance in the Optimization of Supercritical Carbon Dioxide Power Systems

Alessandro Romei, Paolo Gaetani, Andrea Giostri, Giacomo Persico
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2020, 142(7): 071001.
Paper No: TURBO-19-1283
https://doi.org/10.1115/1.4046182
Published Online: June 11, 2020
View Article titled, The Role of Turbomachinery Performance in the Optimization of Supercritical Carbon Dioxide Power Systems
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Topics: Compressors, Cycles, Pressure, Turbines, Turbomachinery, Design, Optimization, Power systems (Machinery), Flow (Dynamics)
Journal Articles

Influence of Excitation Frequency, Phase Shift, and Duty Cycle on Cooling Ratio in a Dynamically Forced Impingement Jet Array

Arne Berthold, Frank Haucke
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2020, 142(5): 051001.
Paper No: TURBO-20-1018
https://doi.org/10.1115/1.4046616
Published Online: March 30, 2020
View Article titled, Influence of Excitation Frequency, Phase Shift, and Duty Cycle on Cooling Ratio in a Dynamically Forced Impingement Jet Array
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Topics: Cooling, Cycles, Excitation, Nozzles, Phase shift, Reynolds number
Journal Articles

Tip-Shroud Labyrinth Seal Effect on the Flutter Stability of Turbine Rotor Blades

Roque Corral, Michele Greco, Almudena Vega
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2019, 141(10): 101006.
Paper No: TURBO-18-1336
https://doi.org/10.1115/1.4043962
Published Online: September 25, 2019
View Article titled, Tip-Shroud Labyrinth Seal Effect on the Flutter Stability of Turbine Rotor Blades
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Topics: Airfoils, Blades, Cavities, Damping, Flow (Dynamics), Flutter (Aerodynamics), Pressure, Rotors, Stability, Turbines
Journal Articles

Experimental Study of Periodic Free Stream Unsteadiness Effects on Discrete Hole Film Cooling in Two Geometries

Daniel D. Borup, Danyang Fan, Christopher J. Elkins, John K. Eaton
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. June 2019, 141(6): 061006.
Paper No: TURBO-18-1284
https://doi.org/10.1115/1.4041866
Published Online: January 21, 2019
View Article titled, Experimental Study of Periodic Free Stream Unsteadiness Effects on Discrete Hole Film Cooling in Two Geometries
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Topics: Coolants, Film cooling, Flow (Dynamics), Fluctuations (Physics), Cycles
Journal Articles

Conceptual Flutter Analysis of Labyrinth Seals Using Analytical Models—Part I: Theoretical Support

Roque Corral, Almudena Vega
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. December 2018, 140(12): 121006.
Paper No: TURBO-18-1165
https://doi.org/10.1115/1.4041373
Published Online: October 18, 2018
View Article titled, Conceptual Flutter Analysis of Labyrinth Seals Using Analytical Models—Part I: Theoretical Support
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Topics: Cavities, Cycles, Flow (Dynamics), Pressure, Stability, Vibration, Flutter (Aerodynamics), Acoustics, Fluids, Torsion
Journal Articles

Conceptual Flutter Analysis of Labyrinth Seals Using Analytical Models—Part II: Physical Interpretation

Almudena Vega, Roque Corral
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. December 2018, 140(12): 121007.
Paper No: TURBO-18-1171
https://doi.org/10.1115/1.4041377
Published Online: October 18, 2018
View Article titled, Conceptual Flutter Analysis of Labyrinth Seals Using Analytical Models—Part II: Physical Interpretation
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Topics: Cavities, Clearances (Engineering), Cycles, Flutter (Aerodynamics), Pressure, Stability, Torsion, Fluids, Oscillating frequencies, Damping