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Proceedings Papers

Adjoint Based Shape Optimization for Thermoacoustic Stability of Combustors Using Free Form Deformation

Ekrem Ekici, Matthew P. Juniper
Proc. ASME. GT2024, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A058, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125711
https://doi.org/10.1115/GT2024-125711
View Paper titled, Adjoint Based Shape Optimization for Thermoacoustic Stability of Combustors Using Free Form Deformation
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Topics: Combustion chambers, Deformation, Finite element methods, Shape optimization, Stability
Proceedings Papers

The Onset of Hydrodynamic Instability in Dual Orifice Atomizers

Hıdır Yankı Kılıçgedik
Proc. ASME. GT2024, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A055, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125255
https://doi.org/10.1115/GT2024-125255
View Paper titled, The Onset of Hydrodynamic Instability in Dual Orifice Atomizers
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Topics: Deformation, Ejectors, Flow (Dynamics), Flow instability, Hydrodynamic stability, Large eddy simulation, Mathematical analysis, Nozzles, Pressure, Reynolds-averaged Navier–Stokes equations
Proceedings Papers

Development of Large-Diameter Hybrid Film-Riding Seals for sCO 2 Turbines

Rahul A. Bidkar, Uttara Kumar, Deepak Trivedi, Xiaohua Zhang, Collin Rambacher, Aaron Rimpel, Thomas Kerr, Jeremy Johnson
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T14A004, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123289
https://doi.org/10.1115/GT2024-123289
View Paper titled, Development of Large-Diameter Hybrid Film-Riding Seals for sCO 2 Turbines
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Topics: Turbines, Temperature, Clearances (Engineering), Film thickness, Fluids, Carbon dioxide, Design, Rotors, Computational fluid dynamics, Deformation
Proceedings Papers

A Wide-Bandwidth and High-Resolution Identification Method for the Dynamic Characteristics of Annular Gas Seals Using Hilbert Transform

Tianhao Wang, Zhigang Li, Jun Li
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, V10AT22A012, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126191
https://doi.org/10.1115/GT2024-126191
View Paper titled, A Wide-Bandwidth and High-Resolution Identification Method for the Dynamic Characteristics of Annular Gas Seals Using Hilbert Transform
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Topics: Resolution (Optics), Time-frequency analysis, Whirls, Computational fluid dynamics, Rotors, Signals, Clearances (Engineering), Dampers, Deformation, Excitation
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

The Impact of Pad Elasticity on Frequency-Dependent Linear Dynamic Coefficients of Tilting-Pad Journal Bearings

Daniel Vetter, Philipp Zemella, Thomas Hagemann, Hubert Schwarze
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, V10AT22A013, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126246
https://doi.org/10.1115/GT2024-126246
View Paper titled, The Impact of Pad Elasticity on Frequency-Dependent Linear Dynamic Coefficients of Tilting-Pad Journal Bearings
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Topics: Elasticity, Journal bearings, Stiffness, Bearings, Boundary-value problems, Deformation, Film thickness, Finite element model, Hydrodynamics, Lubricants
Proceedings Papers

Effect of Tilt on Thermo-Hydrodynamic Model of a Thrust Air Foil Bearing

Talieh Pourashraf, Philip Bonello, Craig Lancaster
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, V10AT22A004, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123643
https://doi.org/10.1115/GT2024-123643
View Paper titled, Effect of Tilt on Thermo-Hydrodynamic Model of a Thrust Air Foil Bearing
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Topics: Foil bearings, Modeling, Thermohydrodynamics, Thrust, Thrust bearings, Bearings, Disks, Accounting, Deformation, Heat
Proceedings Papers

Thermal Performance Characterization of Dry Gas Seals in a sCO 2 Compressor

Rahul A. Bidkar, Uttara Kumar, Xiaohua Zhang, Nora Molino, Joshua Neveu, John Klaerner, Jeremy Johnson, J. Jeffrey Moore
Proc. ASME. GT2024, Volume 11: Supercritical CO2, V011T28A035, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128872
https://doi.org/10.1115/GT2024-128872
View Paper titled, Thermal Performance Characterization of Dry Gas Seals in a sCO 2 Compressor
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Topics: Compressors, Heat transfer, Performance characterization, Turbomachinery, Flow (Dynamics), Temperature, Cavities, Failure, Supercritical carbon dioxide, Accounting
Proceedings Papers

Rotor Design of Heavy-Duty Gas Turbines for Power Generation: A Comparative Analysis for Transition to Net Zero Emission Target

Diego Ugel, Sven Olmes, Claudio Cassinelli, Michael Goerzer, Sinisa Ivkovic, Torsten Winge, Luca Bordo
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT26A018, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128686
https://doi.org/10.1115/GT2024-128686
View Paper titled, Rotor Design of Heavy-Duty Gas Turbines for Power Generation: A Comparative Analysis for Transition to Net Zero Emission Target
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Topics: Clearances (Engineering), Deformation, Design, Emissions, Energy generation, Gas turbines, Rotors, Stress
Proceedings Papers

Multidisciplinary Design Optimization With Multiple Degrees of Freedom for an Axial Compressor Based on Data-Driven

Chuwei Luo, Jiang Chen, Yi Liu, Hang Xiang
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT34A031, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129265
https://doi.org/10.1115/GT2024-129265
View Paper titled, Multidisciplinary Design Optimization With Multiple Degrees of Freedom for an Axial Compressor Based on Data-Driven
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Topics: Compressors, Deformation, Degrees of freedom, Design, Evolutionary algorithms, Optimization
Proceedings Papers

Aerodynamic Design Optimization of Centrifugal Compressor Blade Using Parameterized Free-Form Deformation

Dongqiang Xu, Jianyang Yu, Jinsong Shen, Ning Li, Yanping Song, Xinlong Yang
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT35A013, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125778
https://doi.org/10.1115/GT2024-125778
View Paper titled, Aerodynamic Design Optimization of Centrifugal Compressor Blade Using Parameterized Free-Form Deformation
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Topics: Blades, Compressors, Convolutional neural networks, Deformation, Design, Optimization
Proceedings Papers

Multidisciplinary Analysis of the Impact of Blade Geometric Deviations on Compressor Performance Based on Fluid-Solid Grid Coordinated Deformation

Zhaoxu Tong, Huiying Zhang, Yan Zhou, Rong Xie, Shengli Xu
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT34A009, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122558
https://doi.org/10.1115/GT2024-122558
View Paper titled, Multidisciplinary Analysis of the Impact of Blade Geometric Deviations on Compressor Performance Based on Fluid-Solid Grid Coordinated Deformation
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Topics: Artificial neural networks, Blades, Compressors, Deformation, Errors, Fluids, Machining
Proceedings Papers

Reduced-Order Model of Aero-Thermal-Mechanical Interactions in Ultra High-Speed Micro Gas Turbines

Aniwat Tiralap, Choon S. Tan
Proc. ASME. GT2023, Volume 9: Microturbines, Turbochargers, and Small Turbomachines; Oil and Gas Applications, V009T18A005, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101838
https://doi.org/10.1115/GT2023-101838
View Paper titled, Reduced-Order Model of Aero-Thermal-Mechanical Interactions in Ultra High-Speed Micro Gas Turbines
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Topics: Micro gas turbines, Engines, Bearings, Clearances (Engineering), Thermal expansion, Cooling, Design, Flow (Dynamics), Computation, Deformation
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

Efficient Pressure Mapping for the Calculation of the Dynamic Force on Reduced Order Models of Bladed Disks

Abdelhakim Bouras, Luigi Carassale
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT21A006, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101958
https://doi.org/10.1115/GT2023-101958
View Paper titled, Efficient Pressure Mapping for the Calculation of the Dynamic Force on Reduced Order Models of Bladed Disks
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Topics: Bladed disks, Finite element analysis, Fluid structure interaction, Pressure, Blades, Computational fluid dynamics, Fluids, Stress, Boundary-value problems, Deformation
Proceedings Papers

Numerical Analysis of High Frequency Transverse Instabilities in a Can-Type Combustor

Sandeep Jella, Marc Füri, Vasilis Katsapis
Proc. ASME. GT2023, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A036, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103298
https://doi.org/10.1115/GT2023-103298
View Paper titled, Numerical Analysis of High Frequency Transverse Instabilities in a Can-Type Combustor
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Topics: Combustion chambers, Numerical analysis, Dynamics (Mechanics), Flames, Modeling, Shear (Mechanics), Spin (Aerodynamics), Spinning (Textile), Combustion, Curve fitting
Proceedings Papers

Progress on the Complete and Low-NOx Combustion of Eco-Fuels Using a Thermo-Acoustically-Driven, Hydrogen-Powered Pilot Stage

Nina Paulitsch, Fabrice Giuliani, Andrea Hofer, Johannes Hofer, Lukas Andracher
Proc. ASME. GT2023, Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels, V002T03A018, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102987
https://doi.org/10.1115/GT2023-102987
View Paper titled, Progress on the Complete and Low-NOx Combustion of Eco-Fuels Using a Thermo-Acoustically-Driven, Hydrogen-Powered Pilot Stage
Open the PDF for Progress on the Complete and Low-NOx Combustion of Eco-Fuels Using a Thermo-Acoustically-Driven, Hydrogen-Powered Pilot Stage in another window
Topics: Acoustics, Combustion, Fuels, Hydrogen, Nitrogen oxides, Flames, Emissions, Carbon, Deformation, Density
Proceedings Papers

Non-Linear Numerical Simulation of Pre-Loaded Turbine Blades With Frictional Shroud Contact Under Dynamic Conditions

Hugo de Filippis, Fabrice Thouverez, Laurent Blanc, Patrick Girard, Fabrice Chevillot
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT27A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-79918
https://doi.org/10.1115/GT2022-79918
View Paper titled, Non-Linear Numerical Simulation of Pre-Loaded Turbine Blades With Frictional Shroud Contact Under Dynamic Conditions
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Topics: Blades, Computer simulation, Friction, Turbine blades, Manufacturing, Torsion, Turbines, Geometry, Pressure, Computer software
Proceedings Papers

New Concept for Design in Turbomachinery Applications using Full RANS Gradient Methodology

Armando Del Rio, Ernesto Casartelli, Benno Fleischli, Luca Mangani
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A046, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-84035
https://doi.org/10.1115/GT2022-84035
View Paper titled, New Concept for Design in Turbomachinery Applications using Full RANS Gradient Methodology
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Topics: Design, Reynolds-averaged Navier–Stokes equations, Turbomachinery, Diffusers, Turbulence, Flow (Dynamics), Compressors, Computational fluid dynamics, Deformation, Impellers
Proceedings Papers

Prediction of Thermoacoustic Instability and Fluid-Structure Interactions for Gas Turbine Combustor

Yu Xia, Patrick Sharkey, Ishan Verma, Alok Khaware, Davor Cokljat
Proc. ASME. GT2022, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78296
https://doi.org/10.1115/GT2022-78296
View Paper titled, Prediction of Thermoacoustic Instability and Fluid-Structure Interactions for Gas Turbine Combustor
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Topics: Combustion chambers, Fluid structure interaction, Gas turbines, Flow (Dynamics), Oscillations, Deformation, Turbulence, Combustion, Computational fluid dynamics, Design