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Proceedings Papers

A Low Mach Preconditioned Harmonic Balance Solver for Cavity Flutter Computations

Pierre Sivel, Christian Frey, Hans-Peter Kersken, Edmund Kügeler
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A012, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127337
https://doi.org/10.1115/GT2024-127337
View Paper titled, A Low Mach Preconditioned Harmonic Balance Solver for Cavity Flutter Computations
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Topics: Cavities, Computation, Flutter (Aerodynamics)
Proceedings Papers

The Influence of Mode Shape on Flutter Stability of a Scaled Composite UHBR Fan

Jan Goessling, Niklas Maroldt, Sina Stapelfeldt
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A009, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126529
https://doi.org/10.1115/GT2024-126529
View Paper titled, The Influence of Mode Shape on Flutter Stability of a Scaled Composite UHBR Fan
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Topics: Composite materials, Flutter (Aerodynamics), Mode shapes, Stability
Proceedings Papers

Experiments on Structurally Mistuned UHBR Open-Test-Case Fan ECL5/CATANA

Christoph Brandstetter, Alexandra P. Schneider, Anne-Lise Fiquet, Benoit Paoletti, Xavier Ottavy
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A020, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129163
https://doi.org/10.1115/GT2024-129163
View Paper titled, Experiments on Structurally Mistuned UHBR Open-Test-Case Fan ECL5/CATANA
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Topics: Acoustics, Aerodynamics, Architecture, Blades, Carbon composites, Clearances (Engineering), Compressors, Convection, Engines, Fans
Proceedings Papers

The Role of Operating Conditions on Flutter Instability of a Low-Pressure Turbine Rotor

Lorenzo Pinelli, Francesco Poli, Andrea Arnone, Antonio Giuseppe D’Ettole, Emanuele Rosso, Gianmaria Sartor, Vsevolod Kharyton
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A014, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127528
https://doi.org/10.1115/GT2024-127528
View Paper titled, The Role of Operating Conditions on Flutter Instability of a Low-Pressure Turbine Rotor
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Topics: Flutter (Aerodynamics), Pressure, Rotors, Turbines
Proceedings Papers

Flutter Parameter Study on a Complex Inlet Swirl Distortion Generator

Cole Hefner, Stephen Guillot, John Gillespie, Andrew Hayden, Todd Lowe, Alexandrina Untaroiu
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A004, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124102
https://doi.org/10.1115/GT2024-124102
View Paper titled, Flutter Parameter Study on a Complex Inlet Swirl Distortion Generator
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Topics: Computational fluid dynamics, Flutter (Aerodynamics), Generators, Flow (Dynamics), Separation (Technology), Chords (Trusses), Compressors, Corners (Structural elements), Deformation, Excitation
Proceedings Papers

Generic Framework for an Accurate, and Efficient Flutter Analysis

Laith Zori, Purvic Patel, Sunil Patil, Stephen Orlando, Rubens Campregher
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A015, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127818
https://doi.org/10.1115/GT2024-127818
View Paper titled, Generic Framework for an Accurate, and Efficient Flutter Analysis
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Topics: Flutter (Aerodynamics), Turbomachinery, Traveling waves, Blades, Compressors, Computational fluid dynamics, Damping, Design, Durability, Engines
Proceedings Papers

Conceptual Analysis on the Impact of Acoustic Liners in Fan Flutter

Javier González-Monge, José Miguel Pérez, Roque Corral, Fanzhou Zhao, Mehdi Vahdati
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A022, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129249
https://doi.org/10.1115/GT2024-129249
View Paper titled, Conceptual Analysis on the Impact of Acoustic Liners in Fan Flutter
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Topics: Acoustics, Flutter (Aerodynamics), Waves, Reflection, Axial flow, Blades, Ducts, Electromagnetic scattering, Radiation scattering, Scattering (Physics)
Proceedings Papers

Aeroelastic Influence of Blade-Shaft Coupling in a 1 1/2-Stage Axial Compressor

Niklas Maroldt, Joerg R. Seume
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A005, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124275
https://doi.org/10.1115/GT2024-124275
View Paper titled, Aeroelastic Influence of Blade-Shaft Coupling in a 1 1/2-Stage Axial Compressor
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Topics: Blades, Compressors, Structural dynamics, Damping, Vibration, Design, Frequency response, Simulation, Acoustics, Aerodynamics
Proceedings Papers

Validation of a Methodology to Assess the Flutter Limit Cycle Oscillation Amplitude of Low-Pressure Turbine Bladed-Disks - Part I: Mach Number Effects

Alvaro Escudero, Salvador Rodríguez-Blanco, Roque Corral
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A017, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129074
https://doi.org/10.1115/GT2024-129074
View Paper titled, Validation of a Methodology to Assess the Flutter Limit Cycle Oscillation Amplitude of Low-Pressure Turbine Bladed-Disks - Part I: Mach Number Effects
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Topics: Bladed disks, Flutter (Aerodynamics), Limit cycles, Mach number, Oscillations, Pressure, Turbines, Damping, Vibration, Blades
Proceedings Papers

Validation of a Methodology to Assess the Flutter Limit Cycle Oscillation Amplitude of Low-Pressure Turbine Bladed-Disks - Part II: Shaft Speed Effects

Alvaro Escudero, Salvador Rodríguez-Blanco, Roque Corral
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A018, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129134
https://doi.org/10.1115/GT2024-129134
View Paper titled, Validation of a Methodology to Assess the Flutter Limit Cycle Oscillation Amplitude of Low-Pressure Turbine Bladed-Disks - Part II: Shaft Speed Effects
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Topics: Bladed disks, Flutter (Aerodynamics), Limit cycles, Oscillations, Pressure, Turbines, Vibration, Dry friction, Friction, Aerodynamics
Proceedings Papers

Parametric Study on the Duct Intake Reflection Coefficients for Fan Flutter Analyses

Jose Miguel Perez, Roque Corral
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT21A019, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129159
https://doi.org/10.1115/GT2024-129159
View Paper titled, Parametric Study on the Duct Intake Reflection Coefficients for Fan Flutter Analyses
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Topics: Ducts, Flutter (Aerodynamics), Reflectance, Acoustics, Waves, Aircraft engines, Reflection, Mach number, Noise (Sound), Vibration
Proceedings Papers

Development of a Transonic Fan Research Facility Focused on Casing Treatments and Inlet Distortion Effects

Andrew C. Cusator, William J. Brown, Yuning Dai, Andrew M. Bedke, Nicole L. Key
Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A031, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126747
https://doi.org/10.1115/GT2024-126747
View Paper titled, Development of a Transonic Fan Research Facility Focused on Casing Treatments and Inlet Distortion Effects
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Topics: Aerospace industry, Blades, Computer simulation, Design, Engines, Excitation, Exhaust systems, Fans, Flow (Dynamics), Flowmeters
Proceedings Papers

On the Development of an Efficient Sliding Mesh Interface for the Harmonic Balance Method, Part II: Effects of Casing Treatments on the Aerodynamic Damping of a Compressor Blade

Maximilian Hartmann, Daniel Schlüß, Georg Geiser, Felix Schwarzenthal, Graham Ashcroft, Florian Herbst
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A033, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127237
https://doi.org/10.1115/GT2024-127237
View Paper titled, On the Development of an Efficient Sliding Mesh Interface for the Harmonic Balance Method, Part II: Effects of Casing Treatments on the Aerodynamic Damping of a Compressor Blade
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Topics: Blades, Compressors, Damping, Flutter (Aerodynamics)
Proceedings Papers

On the Development of an Efficient Sliding Mesh Interface for the Harmonic Balance Method, Part I: Implementation and Verification

Georg Geiser, Felix Schwarzenthal, Graham Ashcroft, Maximilian Hartmann, Daniel Schlüß
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A021, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125015
https://doi.org/10.1115/GT2024-125015
View Paper titled, On the Development of an Efficient Sliding Mesh Interface for the Harmonic Balance Method, Part I: Implementation and Verification
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Topics: Algorithms, Ansätze (Mathematics), Blades, Cavities, Compressors, Design, Ducts, Entropy, Excitation, Flow (Dynamics)
Proceedings Papers

A New Non-Linear Time-Domain Flutter Analysis Approach for Distorted Flows

Roque Corral, Salvador Rodríguez-Blanco, Venkata Y. T. Chennuru, Mehdi Vahdati, Fanzhou Zhao
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A056, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129404
https://doi.org/10.1115/GT2024-129404
View Paper titled, A New Non-Linear Time-Domain Flutter Analysis Approach for Distorted Flows
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Topics: Flow (Dynamics), Flutter (Aerodynamics), Damping, Blades, Computational fluid dynamics, Computation, Computer simulation, Electromagnetic scattering, Manufacturing, Pressure
Proceedings Papers

Numerical Analysis of Oscillating Blade in Linear Cascade at Transonic Flow

Ragupathy S., Abhijit Kushari, M. C. Keerthi
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A027, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129233
https://doi.org/10.1115/GT2024-129233
View Paper titled, Numerical Analysis of Oscillating Blade in Linear Cascade at Transonic Flow
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Topics: Blades, Cascades (Fluid dynamics), Numerical analysis, Oscillations, Transonic flow, Shock (Mechanics), Fluctuations (Physics), Compressors, Flutter (Aerodynamics), Pressure
Proceedings Papers

Simulating Part-Span Snubber in Low Pressure Steam Turbine Rotor With Simplified Methods for Aerodynamic and Aeromechanical Assessment

Filippo Mariotti, Leonardo Lilli, Lorenzo Pinelli, Lorenzo Arcangeli, Nicola Maceli, Filippo Brazzini, Michele Marconcini, Andrea Arnone
Proc. ASME. GT2023, Volume 10: Steam Turbine, V010T20A018, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103510
https://doi.org/10.1115/GT2023-103510
View Paper titled, Simulating Part-Span Snubber in Low Pressure Steam Turbine Rotor With Simplified Methods for Aerodynamic and Aeromechanical Assessment
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Topics: Blades, Flutter (Aerodynamics), Pressure, Rotors, Steam turbines
Proceedings Papers

A Frequency-Time Partitioned Approach for Computing Fan Blade Flutter Induced Limit Cycle Oscillations With Nonlinear Friction on Contact Interfaces

Nicolas Ombret, Renaud Daon, Alain Dugeai, Fabrice Thouverez, Laurent Blanc
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT21A010, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102568
https://doi.org/10.1115/GT2023-102568
View Paper titled, A Frequency-Time Partitioned Approach for Computing Fan Blade Flutter Induced Limit Cycle Oscillations With Nonlinear Friction on Contact Interfaces
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Topics: Blades, Flutter (Aerodynamics), Friction, Limit cycles, Oscillations
Proceedings Papers

Experimental Validation of a Seal Flutter Model

Roque Corral, Michele Greco
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT21A011, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102600
https://doi.org/10.1115/GT2023-102600
View Paper titled, Experimental Validation of a Seal Flutter Model
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Topics: Flutter (Aerodynamics), Engineering simulation, Pressure, Simulation, Cavities, Centrifugal force, Clearances (Engineering), Computer simulation, Deformation, Flow (Dynamics)
Proceedings Papers

Mistuning Strategy on Long Blades to Mitigate Flutter

Lorenzo Pinelli, Andrea Arnone, Lorenzo Peruzzi, Claudio Bettini, Conrad Finzel, Rudolf Kellerer
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT21A012, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102933
https://doi.org/10.1115/GT2023-102933
View Paper titled, Mistuning Strategy on Long Blades to Mitigate Flutter
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Topics: Blades, Flutter (Aerodynamics), Design, Combined cycles, Computational fluid dynamics, Emissions, Energy generation, Flow (Dynamics), Fuel consumption, Machinery