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Proceedings Papers

Numerical Investigation of the Effect of Flutter Instability of the Blade on the Unsteady Flow in a Modern Low-Pressure Turbine

Shine Win Naung, Mohammad Rahmati, Hamed Farokhi
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A022, September 21–25, 2020
Paper No: GT2020-15959
https://doi.org/10.1115/GT2020-15959
View Paper titled, Numerical Investigation of the Effect of Flutter Instability of the Blade on the Unsteady Flow in a Modern Low-Pressure Turbine
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Topics: Aeroelasticity, Blades, Computer simulation, Flutter (Aerodynamics), Pressure, Turbines, Unsteady flow
Proceedings Papers

Efficient Steady and Unsteady Flow Modeling for Arbitrarily Mis-Staggered Bladerow Under Influence of Inlet Distortion

Hien M. Phan, Li He
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A029, September 21–25, 2020
Paper No: GT2020-16204
https://doi.org/10.1115/GT2020-16204
View Paper titled, Efficient Steady and Unsteady Flow Modeling for Arbitrarily Mis-Staggered Bladerow Under Influence of Inlet Distortion
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Topics: Modeling, Unsteady flow, Blades, Engineering simulation, Flow (Dynamics), Simulation, Annulus, Computation, Fourier transforms, Inflow
Proceedings Papers

Aeroelastic Stability of Axial Compressor Blades Under Different Operating Conditions

Mingchang Fang, Yanrong Wang
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A008, September 21–25, 2020
Paper No: GT2020-14758
https://doi.org/10.1115/GT2020-14758
View Paper titled, Aeroelastic Stability of Axial Compressor Blades Under Different Operating Conditions
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Topics: Blades, Clearances (Engineering), Compressors, Flutter (Aerodynamics), Stability, Damping, Rotors, Turbomachinery
Proceedings Papers

Coupled Mode Flutter Analysis of Turbomachinery Blades Using an Adaptation of the P-K Method

Matthias Schuff, Virginie Anne Chenaux
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A001, September 21–25, 2020
Paper No: GT2020-14105
https://doi.org/10.1115/GT2020-14105
View Paper titled, Coupled Mode Flutter Analysis of Turbomachinery Blades Using an Adaptation of the P-K Method
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Topics: Blades, Flutter (Aerodynamics), Turbomachinery, Damping, Design, Eigenvalues, Engineering simulation, Excitation, Fluids, Mode shapes
Proceedings Papers

Influence of Pre-Swirl, Rotor Speed and Blade Count on Aeroelastic Coupling Mechanisms During Stall Inception of a Transonic Compressor

Daniel Franke, Maximilian Jüngst, Daniel Möller, Heinz-Peter Schiffer, Thomas Giersch
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A015, September 21–25, 2020
Paper No: GT2020-15255
https://doi.org/10.1115/GT2020-15255
View Paper titled, Influence of Pre-Swirl, Rotor Speed and Blade Count on Aeroelastic Coupling Mechanisms During Stall Inception of a Transonic Compressor
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Topics: Blades, Compressors, Rotors, Stall inception, Vibration, Waves, Aerodynamics, Computer simulation, Instrumentation, Stability
Proceedings Papers

Acoustic Resonance in an Axial Multistage Compressor Leading to Non-Synchronous Blade Vibration

Anne-Lise Fiquet, Agathe Vercoutter, Nicolas Buffaz, Stéphane Aubert, Christoph Brandstetter
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A023, September 21–25, 2020
Paper No: GT2020-16011
https://doi.org/10.1115/GT2020-16011
View Paper titled, Acoustic Resonance in an Axial Multistage Compressor Leading to Non-Synchronous Blade Vibration
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Topics: Acoustics, Blades, Compressors, Resonance, Vibration, Waves, Engineering simulation, Rotors, Simulation, Annulus
Proceedings Papers

Applicability of Harmonic Balance for the Determination of Blade Stability Within the Prescribed Motion Approach

Virginie Anne Chenaux, Matthias Schuff, David Quero
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A002, September 21–25, 2020
Paper No: GT2020-14132
https://doi.org/10.1115/GT2020-14132
View Paper titled, Applicability of Harmonic Balance for the Determination of Blade Stability Within the Prescribed Motion Approach
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Topics: Blades, Stability, Computational fluid dynamics, Engineering simulation, Oscillations, Simulation, Compressors, Damping, Design, Harmonic motion
Proceedings Papers

Numerical and Experimental Research of the Highly Loaded Compressor 1 st Stage: Part 1 — Aerodynamics

Iaroslav Druzhinin, Victor Mileshin, Alexander Petrovichev, Alexander Stepanov
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A016, September 21–25, 2020
Paper No: GT2020-15333
https://doi.org/10.1115/GT2020-15333
View Paper titled, Numerical and Experimental Research of the Highly Loaded Compressor 1 st Stage: Part 1 — Aerodynamics
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Topics: Aerodynamics, Compressors, High pressure (Physics)
Proceedings Papers

Aerodynamic Investigation of a Composite Low-Speed Fan for UHBR Application

Martin Rodrigues, Laurent Soulat, Benoit Paoletti, Xavier Ottavy, Christoph Brandstetter
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A009, September 21–25, 2020
Paper No: GT2020-14915
https://doi.org/10.1115/GT2020-14915
View Paper titled, Aerodynamic Investigation of a Composite Low-Speed Fan for UHBR Application
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Topics: Composite materials, Fans, Stability, Vibration, Blades, Compressors, Design, Engineering simulation, Flow (Dynamics), Flutter (Aerodynamics)
Proceedings Papers

Influence of Inlet Distortions on the Forced Vibration of a High Pressure Compressor Rig

Falco Franz, Arnold Kühhorn, Thomas Giersch, Felix Figaschewsky, Sven Schrape
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A030, September 21–25, 2020
Paper No: GT2020-16221
https://doi.org/10.1115/GT2020-16221
View Paper titled, Influence of Inlet Distortions on the Forced Vibration of a High Pressure Compressor Rig
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Topics: Compressors, High pressure (Physics), Vibration, Engines, Blades, Damping, Excitation, Resonance, Rotors
Proceedings Papers

Design Space Exploration of Turbine Blade Shroud Interlock for Flutter Stability

Olatz Larrieta, Roberto Alonso, Óscar Pérez Escobar, Ibrahim Eryilmaz, Vassilios Pachidis
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A024, September 21–25, 2020
Paper No: GT2020-16040
https://doi.org/10.1115/GT2020-16040
View Paper titled, Design Space Exploration of Turbine Blade Shroud Interlock for Flutter Stability
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Topics: Blades, Design, Flutter (Aerodynamics), Stability, Turbine blades
Proceedings Papers

Higher-Order Conceptual Model for Labyrinth Seal Flutter

Roque Corral, Michele Greco, Almudena Vega
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A003, September 21–25, 2020
Paper No: GT2020-14387
https://doi.org/10.1115/GT2020-14387
View Paper titled, Higher-Order Conceptual Model for Labyrinth Seal Flutter
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Topics: Flutter (Aerodynamics), Cavities, Flow (Dynamics), High pressure (Physics), Cycles, Design, Engineering simulation, Simulation, Stability, Torsion
Proceedings Papers

Numerical Investigation of the Effect of Operating Point on the Aerodynamic Excitation in a Radial Turbine Stage

Nikola Kovachev, Damian M. Vogt
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A025, September 21–25, 2020
Paper No: GT2020-16045
https://doi.org/10.1115/GT2020-16045
View Paper titled, Numerical Investigation of the Effect of Operating Point on the Aerodynamic Excitation in a Radial Turbine Stage
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Topics: Excitation, Turbines, Computational fluid dynamics, Mode shapes, Pressure, Blades, Engineering simulation, Interpolation, Modeling, Rotors
Proceedings Papers

A New Harmonic Balance Approach Using Multidimensional Time

Laura Junge, Christian Frey, Graham Ashcroft, Edmund Kügeler
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A031, September 21–25, 2020
Paper No: GT2020-16224
https://doi.org/10.1115/GT2020-16224
View Paper titled, A New Harmonic Balance Approach Using Multidimensional Time
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Topics: Aeroelasticity, Blades, Computer simulation, Engineering simulation, Errors, Excitation, Flow (Dynamics), Flutter (Aerodynamics), Fourier transforms, Inflow
Proceedings Papers

Aeromechanical Characterization of a Last Stage Steam Blade at Low Load Operation: Part 2 — Computational Modelling and Comparison

Lorenzo Pinelli, Federico Vanti, Lorenzo Peruzzi, Andrea Arnone, Andrea Bessone, Claudio Bettini, Roberto Guida, Michela Marré Brunenghi, Vaclav Slama
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A017, September 21–25, 2020
Paper No: GT2020-15409
https://doi.org/10.1115/GT2020-15409
View Paper titled, Aeromechanical Characterization of a Last Stage Steam Blade at Low Load Operation: Part 2 — Computational Modelling and Comparison
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Topics: Blades, Modeling, Steam, Stress, Damping, Computational fluid dynamics, Flutter (Aerodynamics), Pressure, Steam turbines, Simulation
Proceedings Papers

Micro-, Macromechanical and Aeroelastic Investigation of Glass-Fiber Based, Lightweight Turbomachinery Components

Senad Iseni, Mahesh Ramaswamy Guru Prasad, Alexander Hartmaier, Klaudiusz Holeczek, Niels Modeler, Francesca di Mare
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A010, September 21–25, 2020
Paper No: GT2020-14951
https://doi.org/10.1115/GT2020-14951
View Paper titled, Micro-, Macromechanical and Aeroelastic Investigation of Glass-Fiber Based, Lightweight Turbomachinery Components
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Topics: Glass fibers, Turbomachinery, Composite materials, Anisotropy, Constitutive equations, Damping, Design, Elasticity, Engines, Polymers
Proceedings Papers

Aerodynamic Damping Analysis for Radial Turbine Featuring a Multi-Channel Casing Design

Ahmed Farid Hassan, Tobias Müller, Markus Schatz, Damian M. Vogt
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A004, September 21–25, 2020
Paper No: GT2020-14410
https://doi.org/10.1115/GT2020-14410
View Paper titled, Aerodynamic Damping Analysis for Radial Turbine Featuring a Multi-Channel Casing Design
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Topics: Damping, Design, Turbines, Flow (Dynamics), Rotors, Computer simulation, Excitation, Fluids, Modeling, Open channels (Hydraulics)
Proceedings Papers

Locked-In Phenomenon Between Tip Clearance Flow Instabilities and Enforced Blade Motion in Axial Transonic Compressor Rotors

Le Han, Dasheng Wei, Yanrong Wang, Xiaobo Zhang, Mingchang Fang
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A026, September 21–25, 2020
Paper No: GT2020-16050
https://doi.org/10.1115/GT2020-16050
View Paper titled, Locked-In Phenomenon Between Tip Clearance Flow Instabilities and Enforced Blade Motion in Axial Transonic Compressor Rotors
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Topics: Blades, Clearances (Engineering), Compressors, Flow instability, Rotors
Proceedings Papers

Analysis of Friction-Saturated Flutter Vibrations With a Fully-Coupled Frequency Domain Method

Christian Berthold, Johann Gross, Christian Frey, Malte Krack
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A032, September 21–25, 2020
Paper No: GT2020-16253
https://doi.org/10.1115/GT2020-16253
View Paper titled, Analysis of Friction-Saturated Flutter Vibrations With a Fully-Coupled Frequency Domain Method
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Topics: Flutter (Aerodynamics), Friction, Vibration, Oscillations, Damping, Limit cycles, Aerodynamics, Algorithms, Boundary-value problems, Deflection
Proceedings Papers

Mistuning Effects on the Nonlinear Friction Saturation of Flutter Vibration Amplitude

Carlos Martel, Salvador Rodríguez
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A018, September 21–25, 2020
Paper No: GT2020-15442
https://doi.org/10.1115/GT2020-15442
View Paper titled, Mistuning Effects on the Nonlinear Friction Saturation of Flutter Vibration Amplitude
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Topics: Flutter (Aerodynamics), Friction, Vibration, Blades, Disks, Springs, Engineering simulation, Rotors, Simulation, Traveling waves