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Journal Articles

Optimization of An HPT Blade and Sector-Based Annular Rig Design for Supercritical Co2 Power Cycle Representative Testing

Accepted Manuscript
Logan Tuite, James Braun, Guillermo Paniagua
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-23-1463
https://doi.org/10.1115/1.4063956
Published Online: November 2, 2023
View Article titled, Optimization of An HPT Blade and Sector-Based Annular Rig Design for Supercritical Co2 Power Cycle Representative Testing
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Topics: Blades, Design, Optimization, Supercritical carbon dioxide, Testing, Thermodynamic power cycles, Cycles, Heat, Reynolds number, Shapes
Journal Articles

Quantitative Definition of Spray Edge with Extinction Diagnostics and Evaluation of Attenuation Coefficient for Liquid Jets in Supersonic Crossflow

Accepted Manuscript
Aubrey McKelvy, James Braun, Guillermo Paniagua, Thierry Andre, Etienne Choquet, Francois Falempin
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-23-1458
https://doi.org/10.1115/1.4063887
Published Online: October 27, 2023
View Article titled, Quantitative Definition of Spray Edge with Extinction Diagnostics and Evaluation of Attenuation Coefficient for Liquid Jets in Supersonic Crossflow
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Topics: Jets, Sprays, Ejectors, Electromagnetic scattering, Ethanol, Imaging, Lasers, Lenses (Optics), Magnification, Momentum
Proceedings Papers

Optimization of an HPT Blade and Sector-Based Annular Rig Design for Supercritical CO2 Power Cycle Representative Testing

Logan Tuite, James Braun, Guillermo Paniagua
Proc. ASME. GT2023, Volume 12: Supercritical CO2, V012T28A007, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101722
https://doi.org/10.1115/GT2023-101722
View Paper titled, Optimization of an HPT Blade and Sector-Based Annular Rig Design for Supercritical CO2 Power Cycle Representative Testing
Open the PDF for Optimization of an HPT Blade and Sector-Based Annular Rig Design for Supercritical CO2 Power Cycle Representative Testing in another window
Topics: Blades, Design, High pressure (Physics), Optimization, Supercritical carbon dioxide, Testing, Thermodynamic power cycles, Turbines
Proceedings Papers

Quantitative Definition of Spray Edge With Extinction Diagnostics and Evaluation of Attenuation Coefficient for Liquid Jets in Supersonic Crossflow

Aubrey J. McKelvy, James Braun, Guillermo Paniagua, Thierry Andre, Etienne Choquet, Francois Falempin
Proc. ASME. GT2023, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A019, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102536
https://doi.org/10.1115/GT2023-102536
View Paper titled, Quantitative Definition of Spray Edge With Extinction Diagnostics and Evaluation of Attenuation Coefficient for Liquid Jets in Supersonic Crossflow
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Topics: Electromagnetic scattering, Jets, Sprays
Journal Articles

Development of a Lifetime Pressure Sensitive Paint Procedure for High-Pressure Vane Testing

Papa Aye N. Aye-Addo, Guillermo Paniagua, David G. Cuadrado, Lakshya Bhatnagar, Antonio Castillo Sauca, James Braun, Mateo Gomez, Terrence Meyer, Matthew Bloxham
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2022, 144(5): 051005.
Paper No: TURBO-21-1156
https://doi.org/10.1115/1.4052739
Published Online: January 13, 2022
View Article titled, Development of a Lifetime Pressure Sensitive Paint Procedure for High-Pressure Vane Testing
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Topics: Pressure, Lasers, Paints, Calibration
Proceedings Papers

Development of a Lifetime Pressure Sensitive Paint Procedure for High-Pressure Vane Testing

Papa Aye N. Aye-Addo, Guillermo Paniagua, David G. Cuadrado, Lakshya Bhatnagar, Antonio Castillo Sauca, James Braun, Mateo Gomez-Gomez, Terrence Meyer, Matthew Bloxham
Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T05A014, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59886
https://doi.org/10.1115/GT2021-59886
View Paper titled, Development of a Lifetime Pressure Sensitive Paint Procedure for High-Pressure Vane Testing
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Topics: High pressure (Physics), Paints, Pressure, Testing, Lasers, Turbines, Calibration, Flow (Dynamics), Uncertainty, Wind
Proceedings Papers

Aero-Thermal Characterization of Accelerating and Diffusing Passages Downstream of Rotating Detonation Combustors

James Braun, Guillermo Paniagua, Donald Ferguson
Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T06A005, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59111
https://doi.org/10.1115/GT2021-59111
View Paper titled, Aero-Thermal Characterization of Accelerating and Diffusing Passages Downstream of Rotating Detonation Combustors
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Topics: Combustion chambers, Engines, Explosions
Journal Articles

Aerothermal Optimization of Bladeless Turbines

James Braun, Guillermo Paniagua, Francois Falempin
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2021, 143(3): 031023.
Paper No: GTP-20-1497
https://doi.org/10.1115/1.4049355
Published Online: March 1, 2021
View Article titled, Aerothermal Optimization of Bladeless Turbines
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Topics: Flow (Dynamics), Heat flux, Optimization, Pressure, Skin friction (Fluid dynamics), Turbines, Geometry, Design
Proceedings Papers

Aero-Thermal Optimization of Bladeless Turbines

James Braun, Guillermo Paniagua, Francois Falempin
Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T06A024, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15551
https://doi.org/10.1115/GT2020-15551
View Paper titled, Aero-Thermal Optimization of Bladeless Turbines
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Topics: Optimization, Turbines, Pressure, Geometry, Heat, Heat flux, Turbulence, Blades, Flux (Metallurgy), Mesh generation
Journal Articles

Design and Experimental Assessment of Bladeless Turbines for Axial Inlet Supersonic Flows

James Braun, Guillermo Paniagua, Francois Falempin, Bruno Le Naour
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2020, 142(4): 041024.
Paper No: GTP-19-1583
https://doi.org/10.1115/1.4045359
Published Online: February 14, 2020
View Article titled, Design and Experimental Assessment of Bladeless Turbines for Axial Inlet Supersonic Flows
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Topics: Pressure, Turbines, Flow (Dynamics), Design, Torque
Journal Articles

Design, Optimization, and Analysis of Supersonic Radial Turbines

Lukas Benjamin Inhestern, James Braun, Guillermo Paniagua, José Ramón Serrano Cruz
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2020, 142(3): 031023.
Paper No: GTP-19-1453
https://doi.org/10.1115/1.4044972
Published Online: February 10, 2020
View Article titled, Design, Optimization, and Analysis of Supersonic Radial Turbines
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Topics: Blades, Design, Flow (Dynamics), Geometry, Inflow, Optimization, Pressure, Turbines, Mach number, Shock (Mechanics)
Proceedings Papers

Design, Optimization and Analysis of Supersonic Radial Turbines

Lukas Benjamin Inhestern, James Braun, Guillermo Paniagua, José Ramón Serrano Cruz
Proc. ASME. GT2019, Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T06A026, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91756
https://doi.org/10.1115/GT2019-91756
View Paper titled, Design, Optimization and Analysis of Supersonic Radial Turbines
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Topics: Design, Optimization, Turbines, Flow (Dynamics), Geometry, Reynolds-averaged Navier–Stokes equations, Simulation, Airfoils, Architecture, Blades
Proceedings Papers

Unsteady Heat Transfer Assessment of Supersonic Turbines Downstream of a Rotating Detonation Combustor

Zhe Liu, Lukas Benjamin Inhestern, James Braun, Guillermo Paniagua
Proc. ASME. GT2019, Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T06A019, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91460
https://doi.org/10.1115/GT2019-91460
View Paper titled, Unsteady Heat Transfer Assessment of Supersonic Turbines Downstream of a Rotating Detonation Combustor
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Topics: Combustion chambers, Explosions, Heat transfer, Turbines, Convection, Engineering simulation, Fluctuations (Physics), Heat flux, Simulation, Boundary-value problems
Proceedings Papers

Design and Experimental Assessment of Bladeless Turbines for Axial Inlet Supersonic Flows

James Braun, Guillermo Paniagua, Francois Falempin, Bruno Le Naour
Proc. ASME. GT2019, Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T06A008, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91047
https://doi.org/10.1115/GT2019-91047
View Paper titled, Design and Experimental Assessment of Bladeless Turbines for Axial Inlet Supersonic Flows
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Topics: Design, Supersonic flow, Turbines, Flow (Dynamics), Engineering simulation, Experimental characterization, Inflow, Maintenance, Matlab, Reynolds-averaged Navier–Stokes equations
Journal Articles

Aerothermal Optimization of Fully Cooled Turbine Blade Tips

Valeria Andreoli, James Braun, Guillermo Paniagua, Cis De Maesschalck, Matthew Bloxham, William Cummings, Lawrence Langford
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. June 2019, 141(6): 061007.
Paper No: TURBO-18-1299
https://doi.org/10.1115/1.4041961
Published Online: January 21, 2019
View Article titled, Aerothermal Optimization of Fully Cooled Turbine Blade Tips
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Topics: Blades, Flow (Dynamics), Geometry, Heat flux, Optimization, Pressure, Rotors, Turbines, Cooling, Coolants
Proceedings Papers

Characterization of a Supersonic Turbine Downstream of a Rotating Detonation Combustor

Zhe Liu, James Braun, Guillermo Paniagua
Proc. ASME. GT2018, Volume 3: Coal, Biomass, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T06A021, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76798
https://doi.org/10.1115/GT2018-76798
View Paper titled, Characterization of a Supersonic Turbine Downstream of a Rotating Detonation Combustor
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Topics: Combustion chambers, Explosions, Turbines, Pressure, Flow (Dynamics), Fluctuations (Physics), Nozzles, Simulation, Shock (Mechanics), Stators
Proceedings Papers

Development of High Frequency Virtual Thermocouples

James Braun, Shengqi Lu, Guillermo Paniagua
Proc. ASME. GT2017, Volume 6: Ceramics; Controls, Diagnostics and Instrumentation; Education; Manufacturing Materials and Metallurgy, V006T05A026, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64669
https://doi.org/10.1115/GT2017-64669
View Paper titled, Development of High Frequency Virtual Thermocouples
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Topics: Thermocouples, Wire, Junctions, Frequency response, Probes, Temperature, Transients (Dynamics), Diluents, Engineering simulation, Flow (Dynamics)