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Journal Articles

NON-LINEAR FLUTTER ANALYSIS OF LABYRINTH SEALS

Roque Corral, Michele Greco, Luis Matabuena

J. Turbomach.

Paper No: TURBO-22-1326

DOI: https://doi.org/10.1115/1.4056701

Published Online: January 18, 2023

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Topics: Flutter (Aerodynamics), Seals, Turbochargers, Vibration, Stability, Cavities, Clearances (Engineering), Cycles, High pressure (Physics), Leakage flows

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

J. Turbomach. January 2023, 145(1): 011009.

Paper No: TURBO-22-1189

DOI: https://doi.org/10.1115/1.4055447

Published Online: October 7, 2022

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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

J. Turbomach. July 2022, 144(7): 071010.

Paper No: TURBO-21-1238

DOI: https://doi.org/10.1115/1.4053290

Published Online: March 2, 2022

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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

J. Turbomach. January 2022, 144(1): 011007.

Paper No: TURBO-21-1148

DOI: https://doi.org/10.1115/1.4052138

Published Online: September 7, 2021

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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

J. Turbomach. October 2021, 143(10): 101008.

Paper No: TURBO-20-1374

DOI: https://doi.org/10.1115/1.4050756

Published Online: May 17, 2021

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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

J. Turbomach. July 2021, 143(7): 071016.

Paper No: TURBO-20-1344

DOI: https://doi.org/10.1115/1.4050361

Published Online: April 26, 2021

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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

J. Turbomach. July 2021, 143(7): 071006.

Paper No: TURBO-20-1261

DOI: https://doi.org/10.1115/1.4050334

Published Online: April 9, 2021

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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

J. Turbomach. June 2021, 143(6): 061008.

Paper No: TURBO-20-1241

DOI: https://doi.org/10.1115/1.4050240

Published Online: April 8, 2021

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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

J. Turbomach. December 2020, 142(12): 121005.

Paper No: TURBO-20-1002

DOI: https://doi.org/10.1115/1.4048328

Published Online: November 9, 2020

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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

J. Turbomach. July 2020, 142(7): 071001.

Paper No: TURBO-19-1283

DOI: https://doi.org/10.1115/1.4046182

Published Online: June 11, 2020

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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

J. Turbomach. May 2020, 142(5): 051001.

Paper No: TURBO-20-1018

DOI: https://doi.org/10.1115/1.4046616

Published Online: March 30, 2020

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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

J. Turbomach. October 2019, 141(10): 101006.

Paper No: TURBO-18-1336

DOI: https://doi.org/10.1115/1.4043962

Published Online: September 25, 2019

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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

J. Turbomach. June 2019, 141(6): 061006.

Paper No: TURBO-18-1284

DOI: https://doi.org/10.1115/1.4041866

Published Online: January 21, 2019

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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

J. Turbomach. December 2018, 140(12): 121006.

Paper No: TURBO-18-1165

DOI: https://doi.org/10.1115/1.4041373

Published Online: October 18, 2018

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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

J. Turbomach. December 2018, 140(12): 121007.

Paper No: TURBO-18-1171

DOI: https://doi.org/10.1115/1.4041377

Published Online: October 18, 2018

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Topics: Cavities, Clearances (Engineering), Cycles, Flutter (Aerodynamics), Pressure, Stability, Torsion, Fluids, Oscillating frequencies, Damping

Journal Articles

Fast Conjugate Heat Transfer Simulation of Long Transient Flexible Operations Using Adaptive Time Stepping

R. Maffulli, L. He, P. Stein, G. Marinescu

J. Turbomach. September 2018, 140(9): 091005.

Paper No: TURBO-18-1151

DOI: https://doi.org/10.1115/1.4040997

Published Online: August 28, 2018

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Topics: Annulus, Errors, Flow (Dynamics), Fluids, Heat transfer, Modeling, Natural convection, Simulation, Temperature, Transients (Dynamics)

Journal Articles

Quantification of the Influence of Unsteady Aerodynamic Loading on the Damping Characteristics of Airfoils Oscillating at Low-Reduced Frequency—Part I: Theoretical Support

Roque Corral, Almudena Vega

J. Turbomach. March 2017, 139(3): 031009.

Paper No: TURBO-16-1135

DOI: https://doi.org/10.1115/1.4034976

Published Online: December 1, 2016

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Topics: Airfoils, Flow (Dynamics), Boundary-value problems, Cycles, Torsion

Journal Articles

Quantification of the Influence of Unsteady Aerodynamic Loading on the Damping Characteristics of Airfoils Oscillating at Low Reduced Frequency—Part II: Numerical Verification

Almudena Vega, Roque Corral

J. Turbomach. March 2017, 139(3): 031010.

Paper No: TURBO-16-1136

DOI: https://doi.org/10.1115/1.4034978

Published Online: December 1, 2016

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Topics: Airfoils, Cycles, Damping, Design, Mode shapes, Mach number, Pressure, Flutter (Aerodynamics)

Journal Articles

Simulation of Deep Surge in a Turbocharger Compression System

Rick Dehner, Ahmet Selamet, Philip Keller, Michael Becker

J. Turbomach. November 2016, 138(11): 111002.

Paper No: TURBO-16-1014

DOI: https://doi.org/10.1115/1.4033260

Published Online: May 10, 2016

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Topics: Compression, Compressors, Flow (Dynamics), Surges, Pressure, Cycles, Simulation

Journal Articles

Impact of Compressor Surge on Performance and Emissions of a Marine Diesel Engine

Nikolaos-Alexandros Vrettakos

J. Turbomach. October 2016, 138(10): 101004.

Paper No: TURBO-15-1230

DOI: https://doi.org/10.1115/1.4033186

Published Online: April 26, 2016

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Topics: Compressors, Engines, Pressure, Surges, Diesel engines, Cycles, Turbochargers

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Journal citation

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Manuscript

NON-LINEAR FLUTTER ANALYSIS OF LABYRINTH SEALS

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

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

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

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

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

Higher Order Conceptual Model for Labyrinth Seal Flutter

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

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

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

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

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

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

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

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

Fast Conjugate Heat Transfer Simulation of Long Transient Flexible Operations Using Adaptive Time Stepping

Quantification of the Influence of Unsteady Aerodynamic Loading on the Damping Characteristics of Airfoils Oscillating at Low-Reduced Frequency—Part I: Theoretical Support

Quantification of the Influence of Unsteady Aerodynamic Loading on the Damping Characteristics of Airfoils Oscillating at Low Reduced Frequency—Part II: Numerical Verification

Simulation of Deep Surge in a Turbocharger Compression System

Impact of Compressor Surge on Performance and Emissions of a Marine Diesel Engine

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