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Proceedings Papers

Scaling Heat Transfer and Pressure Losses of Novel Additively Manufactured Rib Designs

Thomas M. Corbett, Karen A. Thole
Proc. ASME. GT2024, Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind Energy, V013T13A010, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122792
https://doi.org/10.1115/GT2024-122792
View Paper titled, Scaling Heat Transfer and Pressure Losses of Novel Additively Manufactured Rib Designs
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Topics: Additive manufacturing, Heat transfer, Pressure, Surface roughness, Flow (Dynamics), Geometry, Pressure drop, Computerized tomography, Cooling, Design
Proceedings Papers

Temperature Measurement of Model Gas Turbine Combustor Using a Multi-Wavelength Pyrometry in Visible and Near Infrared Spectrum

Rifat Haidar, Jong Guen Lee
Proc. ASME. GT2023, Volume 7A: Heat Transfer — Combustors; Film Cooling, V07AT11A009, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104083
https://doi.org/10.1115/GT2023-104083
View Paper titled, Temperature Measurement of Model Gas Turbine Combustor Using a Multi-Wavelength Pyrometry in Visible and Near Infrared Spectrum
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Topics: Combustion chambers, Gas turbines, Infrared spectra, Temperature measurement, Wall temperature, Wavelength
Proceedings Papers

Numerical Study of Radiative Heat Transfer Through Next-Gen Thermal Barrier Coating Topcoats

Jaasim Mulla, Radhakanta Satpathy, Fiyanshu Kaka
Proc. ASME. GT2023, Volume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V07BT13A012, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102756
https://doi.org/10.1115/GT2023-102756
View Paper titled, Numerical Study of Radiative Heat Transfer Through Next-Gen Thermal Barrier Coating Topcoats
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Topics: Heat transfer, Radiation (Physics), Radiative heat transfer, Thermal barrier coatings, Turbines, Temperature, Heat, Reflectance, Alloys, Aviation
Proceedings Papers

Analytical Prediction of Acoustic Resonance in Labyrinth Seals

Janek Mahlstedt, Felix Fischer, Lars Wein, Joerg R. Seume
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT33A013, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103709
https://doi.org/10.1115/GT2023-103709
View Paper titled, Analytical Prediction of Acoustic Resonance in Labyrinth Seals
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Topics: Acoustics, Cavities, Resonance, Turbomachinery, Turbulence, Excitation, Modeling, Reynolds-averaged Navier–Stokes equations, Simulation, Standing waves
Proceedings Papers

The Pore Size Dependence of the Radiative Scattering Coefficient in Yttria-Stabilized Zirconia Films

Yao Wang, Pei-feng Hsu, Mary Helen McCay
Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T02A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80853
https://doi.org/10.1115/GT2022-80853
View Paper titled, The Pore Size Dependence of the Radiative Scattering Coefficient in Yttria-Stabilized Zirconia Films
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Topics: Scattering (Physics), Thermal barrier coatings, Absorption, Ceramics, Plasma spraying, Porosity, Spraying (Coating processes), Temperature, Algorithms, Aluminum
Proceedings Papers

Flame Response of a Lean Premixed Swirl Flame to High Frequency Azimuthal Forcing

Tobias O. Mangold, Alessandro Orchini, Christian Oliver Paschereit, Jonas P. Moeck, Myles D. Bohon
Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A057, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-84211
https://doi.org/10.1115/GT2022-84211
View Paper titled, Flame Response of a Lean Premixed Swirl Flame to High Frequency Azimuthal Forcing
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Topics: Flames, Acoustics, Excitation, Wavelength, Chemiluminescence, Combustion chambers, Longitudinal waves, Turbulence, Waves
Proceedings Papers

The Effect of Circumferential Lengthscale on Hot Gas Ingestion

Michael G. Dawson, John J. Otter, Nicholas R. Atkins
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT14A018, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83345
https://doi.org/10.1115/GT2022-83345
View Paper titled, The Effect of Circumferential Lengthscale on Hot Gas Ingestion
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Topics: Annulus, Blades, Boundary-value problems, Cavities, Computer simulation, Engineering simulation, Numerical analysis, Pressure, Reynolds-averaged Navier–Stokes equations, Rotors
Proceedings Papers

Amplitude and Wavelength Effects for Wavy Channels

Thomas M. Corbett, Karen A. Thole, Sudhakar Bollapragada
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT15A002, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78356
https://doi.org/10.1115/GT2022-78356
View Paper titled, Amplitude and Wavelength Effects for Wavy Channels
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Topics: Wavelength, Additive manufacturing, Computational fluid dynamics, Cooling, Design, Computerized tomography, Durability, Engineering simulation, Flow (Dynamics), Friction
Proceedings Papers

Improvement of the Primary Atomization Model for Jet Into Subsonic Crossflow

Hongyu Ju, Jianqin Suo, Yue Li, Longxi Zheng
Proc. ASME. GT2022, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A043, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81654
https://doi.org/10.1115/GT2022-81654
View Paper titled, Improvement of the Primary Atomization Model for Jet Into Subsonic Crossflow
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Topics: Jets, Mach number, Modeling, Momentum, Trajectories (Physics), Wavelength, Waves
Proceedings Papers

Performance Evaluation of Leading Edge Tubercles Applied to the Blades in a 2-D Compressor Cascade

Satpreet S. Sidhu, Asad Asghar, William D. E. Allan
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A017, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58798
https://doi.org/10.1115/GT2021-58798
View Paper titled, Performance Evaluation of Leading Edge Tubercles Applied to the Blades in a 2-D Compressor Cascade
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Topics: Blades, Cascades (Fluid dynamics), Compressors, Performance evaluation, Flow visualization, Geometry, Mach number, Pressure, Aircraft engines, Design
Proceedings Papers

Convection in Scaled Turbine Internal Cooling Passages With Additive Manufacturing Roughness

Gabriel J. Stafford, Stephen T. McClain, David R. Hanson, Robert F. Kunz, Karen A. Thole
Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT15A018, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59684
https://doi.org/10.1115/GT2021-59684
View Paper titled, Convection in Scaled Turbine Internal Cooling Passages With Additive Manufacturing Roughness
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Topics: Additive manufacturing, Convection, Cooling, Surface roughness, Turbines, Aluminum, Friction, Compressibility, Computer numerical control machine tools, Drag (Fluid dynamics)
Proceedings Papers

Localized Breakup Instabilities for a Liquid Jet in Crossflow

Sheikh Salauddin, Wilmer Flores, Michelle Otero, Kareem Ahmed
Proc. ASME. GT2021, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A004, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59421
https://doi.org/10.1115/GT2021-59421
View Paper titled, Localized Breakup Instabilities for a Liquid Jet in Crossflow
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Topics: Aviation, Flow (Dynamics), Fuels, Hydrodynamic stability, Momentum, Nonlinear dynamical systems, Principal component analysis, Rayleigh-Taylor instability, Resolution (Optics), Shear (Mechanics)
Proceedings Papers

Effects of Surface Waviness on Fan Blade Boundary Layer Transition and Profile Loss — Part I: Methodology and Computational Results

Jinwook Lee, Zoltán S. Spakovszky, Edward M. Greitzer, Mark Drela, Jérôme Talbotec
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A010, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58676
https://doi.org/10.1115/GT2021-58676
View Paper titled, Effects of Surface Waviness on Fan Blade Boundary Layer Transition and Profile Loss — Part I: Methodology and Computational Results
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Topics: Blades, Boundary layers, Wavelength, Acoustics, Composite materials, Computation, Energy transformation, Flow (Dynamics), Noise (Sound), Surface waves (Fluid)
Proceedings Papers

Effects of Surface Waviness on Fan Blade Boundary Layer Transition and Profile Loss — Part II: Experimental Assessments and Applications

Jinwook Lee, Vaishnavi Ramaswamy, Zoltán S. Spakovszky, Edward M. Greitzer, Mark Drela, Jérôme Talbotec
Proc. ASME. GT2021, Volume 2A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V02AT31A011, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58678
https://doi.org/10.1115/GT2021-58678
View Paper titled, Effects of Surface Waviness on Fan Blade Boundary Layer Transition and Profile Loss — Part II: Experimental Assessments and Applications
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Topics: Blades, Boundary layers, Wavelength, Surface waves (Fluid), Aircraft, Composite materials, Delays, Resonance, Reynolds number, Thermography
Proceedings Papers

Experimental Drag and Mixing From Lobed Nozzles Under High Swirl Conditions From a Ducted Fan

Maverick Zawislak, Michael Birk
Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T01A026, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15211
https://doi.org/10.1115/GT2020-15211
View Paper titled, Experimental Drag and Mixing From Lobed Nozzles Under High Swirl Conditions From a Ducted Fan
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Topics: Drag (Fluid dynamics), Nozzles, Vorticity, Thrust, Flow (Dynamics), Vortices, Computational fluid dynamics, Design methodology, Cooling, Design
Proceedings Papers

Impact of Soot Radiative Properties, Pressure and Soot Volume Fraction on Radiative Heat Transfer in Turbulent Sooty Flames

Kevin Torres Monclard, Olivier Gicquel, Ronan Vicquelin
Proc. ASME. GT2020, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A017, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15559
https://doi.org/10.1115/GT2020-15559
View Paper titled, Impact of Soot Radiative Properties, Pressure and Soot Volume Fraction on Radiative Heat Transfer in Turbulent Sooty Flames
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Topics: Flames, Pressure, Radiative heat transfer, Soot, Turbulence, Electromagnetic scattering, Particulate matter, Radiation scattering, Scattering (Physics), Emissions
Proceedings Papers

Dynamic Mode Decomposition Analysis of Separated Boundary Layers Under Variable Reynolds Number and Free-Stream Turbulence

M. Dellacasagrande, J. Verdoya, D. Barsi, D. Lengani, D. Simoni
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A038, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16322
https://doi.org/10.1115/GT2020-16322
View Paper titled, Dynamic Mode Decomposition Analysis of Separated Boundary Layers Under Variable Reynolds Number and Free-Stream Turbulence
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Topics: Boundary layers, Reynolds number, Turbulence, Wavelength, Fluctuations (Physics), Shear (Mechanics), Vortices, Accounting, Control systems, Density
Proceedings Papers

Shape Optimization of Thermoacoustic Systems Using a 2D Adjoint Helmholtz Solver

Stefano Falco, Matthew P. Juniper
Proc. ASME. GT2020, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A051, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14971
https://doi.org/10.1115/GT2020-14971
View Paper titled, Shape Optimization of Thermoacoustic Systems Using a 2D Adjoint Helmholtz Solver
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Topics: Shape optimization, Combustion chambers, Geometry, Turbulence, Wavelength, Acoustics, Design, Finite element analysis, Flames, Shapes
Proceedings Papers

Modeling Thermally Grown Oxides in Thermal Barrier Coatings Using Koch Fractal

Peter Warren, Sandip Haldar, Seetha Raghavan, Ranajay Ghosh
Proc. ASME. GT2019, Volume 6: Ceramics; Controls, Diagnostics, and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T24A019, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91722
https://doi.org/10.1115/GT2019-91722
View Paper titled, Modeling Thermally Grown Oxides in Thermal Barrier Coatings Using Koch Fractal
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Topics: Fractals, Modeling, Thermal barrier coatings, Stress, Cracking (Materials), Creep, Delamination, Failure, Fracture (Process), Geometry
Proceedings Papers

Improvement of Steam Turbine Blade Foil With Biomimetic Design and its Influence on Aerodynamic Performance

Fan Wu, Danmei Xie, Jing Zhang, Hengliang Zhang, Chun Wang
Proc. ASME. GT2019, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T29A022, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91128
https://doi.org/10.1115/GT2019-91128
View Paper titled, Improvement of Steam Turbine Blade Foil With Biomimetic Design and its Influence on Aerodynamic Performance
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Topics: Biomimetics, Blades, Design, Steam turbines, Flow (Dynamics), Bionics, Shapes, Torque, Vortices, Stress