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Proceedings Papers

Intrinsic Thermoacoustic Feedback in Auto-Ignition Flames Stabilized in a Converging-Diverging Nozzle

Fernando Biagioli, Khawar J. Syed
Proc. ASME. GT2024, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A038, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128594
https://doi.org/10.1115/GT2024-128594
View Paper titled, Intrinsic Thermoacoustic Feedback in Auto-Ignition Flames Stabilized in a Converging-Diverging Nozzle
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Topics: Feedback, Flames, Ignition, Nozzles, Acoustics, Combustion, Ducts, Reflection, Waves, Dynamics (Mechanics)
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

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

Experimental Investigation of Mode-Frequency Scattering at Fan Stages

Maximilian Behn, Ulf Tapken
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT33A002, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101882
https://doi.org/10.1115/GT2023-101882
View Paper titled, Experimental Investigation of Mode-Frequency Scattering at Fan Stages
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Topics: Electromagnetic scattering, Noise (Sound), Radiation scattering, Scattering (Physics), Rotors, Aerodynamic noise, Loudspeakers, Machinery, Microphone arrays, Noise control
Proceedings Papers

Acoustic Optimization Approach for Annular Diffusers in Turbomachinery Applications Using Plane Wave Modelling

Felix Fischer, Jörg Seume
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT33A002, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80517
https://doi.org/10.1115/GT2022-80517
View Paper titled, Acoustic Optimization Approach for Annular Diffusers in Turbomachinery Applications Using Plane Wave Modelling
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Topics: Acoustics, Diffusers, Modeling, Optimization, Turbomachinery, Waves, Design, Reflection, Boundary-value problems, Computer simulation
Proceedings Papers

Impact of Aerodynamic Asymmetry on the Embedded Rotor Forcing and Mistuned Blade Response

Shreyas Hegde, Laith Zori, Rubens Campregher, Robert Kielb
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A004, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78101
https://doi.org/10.1115/GT2022-78101
View Paper titled, Impact of Aerodynamic Asymmetry on the Embedded Rotor Forcing and Mistuned Blade Response
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Topics: Blades, Compressors, Computational fluid dynamics, Rotors, Stators, Engineering simulation, Simulation, Waves, Disks, Reflection
Proceedings Papers

Aerodynamic Damping of Composite UHBR Fans Under the Consideration of Acoustic Intake Reflections

Jan Gößling, Joerg R. Seume, Jan Peter Flüh, Nicola Paletta, Torben Eggers, Jens Friedrichs, Nunzio Natale
Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT21A008, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81777
https://doi.org/10.1115/GT2022-81777
View Paper titled, Aerodynamic Damping of Composite UHBR Fans Under the Consideration of Acoustic Intake Reflections
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Topics: Acoustics, Composite materials, Damping, Fans, Reflection, Blades, Engines, Fibers, Rotors, Stiffness
Proceedings Papers

Computation of Intrinsic Instability and Sound Generation From Autoignition Fronts

Harish Subramanian Gopalakrishnan, Andrea Gruber, Jonas Moeck
Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A022, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82480
https://doi.org/10.1115/GT2022-82480
View Paper titled, Computation of Intrinsic Instability and Sound Generation From Autoignition Fronts
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Topics: Computation, Combustion chambers, Flames, Oscillations, Acoustics, Ignition, Combustion, Heat, Carbon, Emissions
Proceedings Papers

Experimental Investigation of Acoustic Characteristic on Orifice Shaped With Bias Flow

Melvin Ikwubuo, Jinkwan Song, Jong Guen Lee
Proc. ASME. GT2021, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A033, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60118
https://doi.org/10.1115/GT2021-60118
View Paper titled, Experimental Investigation of Acoustic Characteristic on Orifice Shaped With Bias Flow
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Topics: Acoustics, Combustion, Dynamics (Mechanics), Flow (Dynamics), Orifices, Combustion chambers, S-matrix theory, Waves, Aerodynamic noise, Boundary-value problems
Proceedings Papers

Prediction of the Acoustic Reflection in a Realistic Aeroengine Intake With Three Numerical Methods to Analyze Fan Flutter

Thomas Bontemps, Stéphane Aubert, Maxime de Pret
Proc. ASME. GT2020, Volume 2D: Turbomachinery, V02DT36A018, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15376
https://doi.org/10.1115/GT2020-15376
View Paper titled, Prediction of the Acoustic Reflection in a Realistic Aeroengine Intake With Three Numerical Methods to Analyze Fan Flutter
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Topics: Acoustics, Flutter (Aerodynamics), Numerical analysis, Reflection, Simulation, Computational fluid dynamics, Design, Errors, Risk, Stability
Proceedings Papers

On the Formulation of Nonreflecting Boundary Conditions for Turbomachinery Configurations: Part II — Application and Analysis

Nina Wolfrum, Patrick Bechlars, Maximilian Beck, Christian Frey, Daniel Schlüß
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A037, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15358
https://doi.org/10.1115/GT2020-15358
View Paper titled, On the Formulation of Nonreflecting Boundary Conditions for Turbomachinery Configurations: Part II — Application and Analysis
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Topics: Boundary-value problems, Turbomachinery, Flow (Dynamics), Waves, Algorithms, Computational fluid dynamics, Acoustics, Blades, Computation, Design
Proceedings Papers

Numerical Sensitivity Study on the Design of a Transonic Aeroelastic Compressor Rig

Simeng Tian, Mauricio Gutierrez Salas
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A014, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14565
https://doi.org/10.1115/GT2020-14565
View Paper titled, Numerical Sensitivity Study on the Design of a Transonic Aeroelastic Compressor Rig
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Topics: Compressors, Design, Cascades (Fluid dynamics), Engineering simulation, Nozzles, Pressure, Simulation, Blades, Computation, Computational fluid dynamics
Proceedings Papers

Effects of S-Shaped Intake on Aeromechanical Characteristics of a Transonic Fan

Yun Zheng, Kang Xu, Hui Yang, Qingzhe Gao, Xiubo Jin
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A007, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14750
https://doi.org/10.1115/GT2020-14750
View Paper titled, Effects of S-Shaped Intake on Aeromechanical Characteristics of a Transonic Fan
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Topics: Acoustics, Aeroelasticity, Aircraft engines, Annulus, Blades, Boundary layers, Composite materials, Damping, Diffusers, Ducts
Proceedings Papers

Impact of Exit Duct Dynamic Response on Compressor Stability

Wenqiang Zhang, Mehdi Vahdati, Fanzhou Zhao
Proc. ASME. GT2019, Volume 2A: Turbomachinery, V02AT45A012, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90857
https://doi.org/10.1115/GT2019-90857
View Paper titled, Impact of Exit Duct Dynamic Response on Compressor Stability
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Topics: Compressors, Ducts, Dynamic response, Stability, Nozzles, Blades, Reflection, Transients (Dynamics), Waves, Acoustics
Proceedings Papers

Application of Quantitative Monochrome Calibrated Schlieren Technique in Highly-Loaded Turbine Cascade Test

Zhihong Zhou, Haotian Wang, Huoxing Liu
Proc. ASME. GT2019, Volume 2B: Turbomachinery, V02BT40A003, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90342
https://doi.org/10.1115/GT2019-90342
View Paper titled, Application of Quantitative Monochrome Calibrated Schlieren Technique in Highly-Loaded Turbine Cascade Test
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Topics: Cascades (Fluid dynamics), Schlieren methods, Turbines, Density, Image processing, Shock (Mechanics), Boundary-value problems, Shock waves, Aircraft engines, Computer software
Proceedings Papers

Thermoacoustic Spectrum of a Swirled Premixed Combustor With Partially Reflecting Boundaries

Kah Joon Yong, Max Meindl, Wolfgang Polifke, Camilo F. Silva
Proc. ASME. GT2019, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A043, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91784
https://doi.org/10.1115/GT2019-91784
View Paper titled, Thermoacoustic Spectrum of a Swirled Premixed Combustor With Partially Reflecting Boundaries
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Topics: Combustion chambers, Acoustics, Reflection, Stability, Boundary-value problems, Dynamics (Mechanics), Eigenvalues, Flames, Geometry, Navier-Stokes equations
Proceedings Papers

A New Type of Rotary Liquid Piston Pump for Multi-Phase CO 2 Compression

Azam Thatte
Proc. ASME. GT2018, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A022, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-77011
https://doi.org/10.1115/GT2018-77011
View Paper titled, A New Type of Rotary Liquid Piston Pump for Multi-Phase CO 2 Compression
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Topics: Carbon dioxide, Compression, Pistons, Pumps, Fluids, Rotors, Pressure, Supercritical carbon dioxide, Ducts, Flow (Dynamics)
Proceedings Papers

Effects of Downstream Vane Bowing and Asymmetry on Unsteadiness in a Transonic Turbine

John P. Clark, Richard J. Anthony, Michael K. Ooten, John M. Finnegan, P. Dean Johnson, Ron-Ho Ni
Proc. ASME. GT2018, Volume 2A: Turbomachinery, V02AT45A029, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76735
https://doi.org/10.1115/GT2018-76735
View Paper titled, Effects of Downstream Vane Bowing and Asymmetry on Unsteadiness in a Transonic Turbine
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Topics: Turbines, Blades, Design, Shock (Mechanics), Turbine blades, Airfoils, Annulus, Cycles, Engineering simulation, Gas turbines
Proceedings Papers

Influence of Rotor-Stator Interaction and Reflecting Boundary Conditions on Compressor Forced Response

Zhiping Mao, Shreyas Hegde, Tianyu Pan, Robert E. Kielb, Laith Zori, Rubens Campregher
Proc. ASME. GT2018, Volume 2A: Turbomachinery, V02AT45A004, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75232
https://doi.org/10.1115/GT2018-75232
View Paper titled, Influence of Rotor-Stator Interaction and Reflecting Boundary Conditions on Compressor Forced Response
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Topics: Boundary-value problems, Compressors, Rotors, Stators, Inlet guide vanes, Blades, Reflection, Simulation, Computation, Energy transformation
Proceedings Papers

Study of the Impact of Multi-Row Interaction on Flutter Analysis for a Representative LPT Geometry

Adrian Sotillo, Juan Manuel Gallardo
Proc. ASME. GT2018, Volume 7C: Structures and Dynamics, V07CT36A011, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75762
https://doi.org/10.1115/GT2018-75762
View Paper titled, Study of the Impact of Multi-Row Interaction on Flutter Analysis for a Representative LPT Geometry
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Topics: Flutter (Aerodynamics), Geometry, Blades, Acoustics, Spin (Aerodynamics), Spinning (Textile), Computation, Computational fluid dynamics, Damping, Engineering simulation