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Proceedings Papers

Validation and Assessment of a Numerical Methodology for Turbulent Liquid Fuel Jets in High-Speed Crossflow

Malika Zghal, Xiaoxiao Sun, Pierre Gauthier, Vishal Sethi
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T03A019, June 13–17, 2022
Paper No: GT2022-83166
DOI: https://doi.org/10.1115/GT2022-83166
View Paper titled, Validation and Assessment of a Numerical Methodology for Turbulent Liquid Fuel Jets in High-Speed Crossflow
Click here to open pdf in another window PDF for Validation and Assessment of a Numerical Methodology for Turbulent Liquid Fuel Jets in High-Speed Crossflow
Topics: Computational fluid dynamics, Fuels, Gas turbines, Jets, Turbulence
Proceedings Papers

Thermoacoustic Behaviour of a Hydrogen Micromix Aviation Gas Turbine Combustor Under Typical Flight Conditions

David Abbot, Alessandro Giannotta, Xiaoxiao Sun, Pierre Gauthier, Vishal Sethi
Proc. ASME. GT2021, Volume 6: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels; Microturbines, Turbochargers, and Small Turbomachines, V006T03A013, June 7–11, 2021
Paper No: GT2021-59844
DOI: https://doi.org/10.1115/GT2021-59844
View Paper titled, Thermoacoustic Behaviour of a Hydrogen Micromix Aviation Gas Turbine Combustor Under Typical Flight Conditions
Click here to open pdf in another window PDF for Thermoacoustic Behaviour of a Hydrogen Micromix Aviation Gas Turbine Combustor Under Typical Flight Conditions
Topics: Aviation, Combustion, Combustion chambers, Flight, Gas turbines, Hydrogen
Journal Articles

Preliminary Design Framework for the Power Gearbox in a Contra-Rotating Open Rotor

Diana G. San Benito Pastor, Devaiah Nalianda, Vishal Sethi, Ron Midgley, Andrew Rolt, D. Alejandro Block Novelo
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2021, 143(4): 041022.
Paper No: GTP-20-1061
DOI: https://doi.org/10.1115/1.4049411
Published Online: March 10, 2021
View Article titled, Preliminary Design Framework for the Power Gearbox in a Contra-Rotating Open Rotor
Click here to open pdf in another window PDF for Preliminary Design Framework for the Power Gearbox in a Contra-Rotating Open Rotor
Topics: Design, Gears, Mechanical drives, Torque, Stress, Rotors, Propellers
Proceedings Papers

Numerical Studies of Novel Aero Engine Secondary Combustors for Low-NOx Emissions

Andrew Rolt, Victor Martínez Bueno, Mirko Romanelli, Xiaoxiao Sun, Pierre Gauthier, Vishal Sethi, Cesar Celis
Proc. ASME. GT2020, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A042, September 21–25, 2020
Paper No: GT2020-16081
DOI: https://doi.org/10.1115/GT2020-16081
View Paper titled, Numerical Studies of Novel Aero Engine Secondary Combustors for Low-NOx Emissions
Click here to open pdf in another window PDF for Numerical Studies of Novel Aero Engine Secondary Combustors for Low-NOx Emissions
Topics: Aircraft engines, Combustion chambers, Emissions, Nitrogen oxides
Proceedings Papers

NO x Emissions Predictions for a Hydrogen Micromix Combustion System

Giulia Babazzi, Pierre Q. Gauthier, Parash Agarwal, Jonathan McClure, Vishal Sethi
Proc. ASME. GT2019, Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T03A008, June 17–21, 2019
Paper No: GT2019-90532
DOI: https://doi.org/10.1115/GT2019-90532
View Paper titled, NO x Emissions Predictions for a Hydrogen Micromix Combustion System
Click here to open pdf in another window PDF for NO x Emissions Predictions for a Hydrogen Micromix Combustion System
Topics: Combustion systems, Emissions, Hydrogen, Nitrogen oxides, Chemistry, Combustion, Computational fluid dynamics, Turbulence, Design, Ejectors
Proceedings Papers

Comparison of Hydrogen Micromix Flame Transfer Functions Determined Using RANS and LES

Jonathan McClure, David Abbott, Parash Agarwal, Xiaoxiao Sun, Giulia Babazzi, Vishal Sethi, Pierre Gauthier
Proc. ASME. GT2019, Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T03A009, June 17–21, 2019
Paper No: GT2019-90538
DOI: https://doi.org/10.1115/GT2019-90538
View Paper titled, Comparison of Hydrogen Micromix Flame Transfer Functions Determined Using RANS and LES
Click here to open pdf in another window PDF for Comparison of Hydrogen Micromix Flame Transfer Functions Determined Using RANS and LES
Topics: Flames, Hydrogen, Reynolds-averaged Navier–Stokes equations, Transfer functions, Combustion systems, Computational fluid dynamics, Combustion chambers, Acoustics, Design, Diffusion flames
Proceedings Papers

Technical and Economic Viability of an EIS 2050 Geared Open Rotor

Joshua Sebastiampillai, Andrew Rolt, Devaiah Nalianda, Francesco Mastropierro, Vishal Sethi
Proc. ASME. GT2019, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Honors and Awards, V001T01A004, June 17–21, 2019
Paper No: GT2019-90290
DOI: https://doi.org/10.1115/GT2019-90290
View Paper titled, Technical and Economic Viability of an EIS 2050 Geared Open Rotor
Click here to open pdf in another window PDF for Technical and Economic Viability of an EIS 2050 Geared Open Rotor
Topics: Electrochemical impedance spectroscopy, Rotors, Engines, Aircraft, Fuels, Emissions, Aviation, Carbon dioxide, Turbofans, Commercial air transport
Proceedings Papers

Injector Design Space Exploration for an Ultra-Low NO x Hydrogen Micromix Combustion System

Parash Agarwal, Xiaoxiao Sun, Pierre Q. Gauthier, Vishal Sethi
Proc. ASME. GT2019, Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T03A013, June 17–21, 2019
Paper No: GT2019-90833
DOI: https://doi.org/10.1115/GT2019-90833
View Paper titled, Injector Design Space Exploration for an Ultra-Low NO x Hydrogen Micromix Combustion System
Click here to open pdf in another window PDF for Injector Design Space Exploration for an Ultra-Low NO x Hydrogen Micromix Combustion System
Topics: Combustion systems, Design, Ejectors, Hydrogen, Nitrogen oxides, Modeling, Emissions, Carbon, Combustion, Commercial air transport
Proceedings Papers

Structural Analysis of Profiled Tubes for a Turbofan Engine Supercritical-CO 2 Bottoming Cycle Heat Exchanger

Jon Rengel, Florian Jacob, Andrew Rolt, Vishal Sethi
Proc. ASME. GT2018, Volume 5C: Heat Transfer, V05CT20A003, June 11–15, 2018
Paper No: GT2018-76208
DOI: https://doi.org/10.1115/GT2018-76208
View Paper titled, Structural Analysis of Profiled Tubes for a Turbofan Engine Supercritical-CO 2 Bottoming Cycle Heat Exchanger
Click here to open pdf in another window PDF for Structural Analysis of Profiled Tubes for a Turbofan Engine Supercritical-CO 2 Bottoming Cycle Heat Exchanger
Topics: Cycles, Engines, Heat exchangers, Structural analysis, Turbofans, Exhaust systems, Supercritical carbon dioxide, Chords (Trusses), Gases, Stress
Proceedings Papers

A Detailed Analytical Study of Hydrogen Reaction in a Novel Micromix Combustion System

Ramzi Ben Abdallah, Vishal Sethi, Pierre Q. Gauthier, Andrew Martin Rolt, David Abbott
Proc. ASME. GT2018, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A028, June 11–15, 2018
Paper No: GT2018-76586
DOI: https://doi.org/10.1115/GT2018-76586
View Paper titled, A Detailed Analytical Study of Hydrogen Reaction in a Novel Micromix Combustion System
Click here to open pdf in another window PDF for A Detailed Analytical Study of Hydrogen Reaction in a Novel Micromix Combustion System
Topics: Combustion systems, Hydrogen, Combustion, Fuels, Diffusion (Physics), Combustion chambers, Gas turbines, Modeling, Boundary-value problems, Chemistry
Journal Articles

Computational Fluid Dynamics Investigation of a Core-Mounted Target-Type Thrust Reverser—Part 2: Reverser Deployed Configuration

Tashfeen Mahmood, Anthony Jackson, Vishal Sethi, Bidur Khanal, Fakhre Ali
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2018, 140(9): 091205.
Paper No: GTP-17-1465
DOI: https://doi.org/10.1115/1.4038817
Published Online: July 9, 2018
View Article titled, Computational Fluid Dynamics Investigation of a Core-Mounted Target-Type Thrust Reverser—Part 2: Reverser Deployed Configuration
Click here to open pdf in another window PDF for Computational Fluid Dynamics Investigation of a Core-Mounted Target-Type Thrust Reverser—Part 2: Reverser Deployed Configuration
Topics: Computational fluid dynamics, Engines, Flow (Dynamics), Pressure, Thrust, Thrust reversers, Design
Journal Articles

Computational Fluid Dynamics Investigation of a Core-Mounted Target-Type Thrust Reverser—Part 1: Reverser Stowed Configuration

Tashfeen Mahmood, Anthony Jackson, Vishal Sethi, Bidur Khanal, Fakhre Ali
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2018, 140(9): 091204.
Paper No: GTP-17-1464
DOI: https://doi.org/10.1115/1.4038816
Published Online: June 15, 2018
View Article titled, Computational Fluid Dynamics Investigation of a Core-Mounted Target-Type Thrust Reverser—Part 1: Reverser Stowed Configuration
Click here to open pdf in another window PDF for Computational Fluid Dynamics Investigation of a Core-Mounted Target-Type Thrust Reverser—Part 1: Reverser Stowed Configuration
Topics: Computational fluid dynamics, Engines, Flow (Dynamics), Thrust, Thrust reversers
Proceedings Papers

Preliminary CFD Study on the Effect of Fuel Injector Coking on Fuel Spray Characteristics

Parash Agarwal, Vishal Sethi, Pierre Q. Gauthier, Xiaoxiao Sun, Yize Liu
Proc. ASME. GTINDIA2017, Volume 1: Compressors, Fans and Pumps; Turbines; Heat Transfer; Combustion, Fuels and Emissions, V001T04A015, December 7–8, 2017
Paper No: GTINDIA2017-4838
DOI: https://doi.org/10.1115/GTINDIA2017-4838
View Paper titled, Preliminary CFD Study on the Effect of Fuel Injector Coking on Fuel Spray Characteristics
Click here to open pdf in another window PDF for Preliminary CFD Study on the Effect of Fuel Injector Coking on Fuel Spray Characteristics
Topics: Computational fluid dynamics, Fuel injectors, Fuels, Sprays, Ejectors, Coke, Combustion systems, Nozzles, Combustion, Computer simulation
Proceedings Papers

Preliminary Design and Performance of Counter Rotating Turbines for Open Rotors: Part I — 1-D Methodology

Pablo Bellocq, Inaki Garmendia, Jordane Legrand, Vishal Sethi
Proc. ASME. GT2016, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A037, June 13–17, 2016
Paper No: GT2016-57918
DOI: https://doi.org/10.1115/GT2016-57918
View Paper titled, Preliminary Design and Performance of Counter Rotating Turbines for Open Rotors: Part I — 1-D Methodology
Click here to open pdf in another window PDF for Preliminary Design and Performance of Counter Rotating Turbines for Open Rotors: Part I — 1-D Methodology
Topics: Design, Rotors, Turbines, Engines, Fuel consumption, Aircraft, Blades, Design methodology, Flow (Dynamics), Geometry
Proceedings Papers

Preliminary Design and Performance of Counter Rotating Turbines for Open Rotors: Part II — 0-D Methodology and Case Study for a 160 PAX Aircraft

Pablo Bellocq, Inaki Garmendia, Jordane Legrand, Vishal Sethi
Proc. ASME. GT2016, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A038, June 13–17, 2016
Paper No: GT2016-57921
DOI: https://doi.org/10.1115/GT2016-57921
View Paper titled, Preliminary Design and Performance of Counter Rotating Turbines for Open Rotors: Part II — 0-D Methodology and Case Study for a 160 PAX Aircraft
Click here to open pdf in another window PDF for Preliminary Design and Performance of Counter Rotating Turbines for Open Rotors: Part II — 0-D Methodology and Case Study for a 160 PAX Aircraft
Topics: Aircraft, Design, Rotors, Turbines, Engines, Propellers, Design methodology, Noise (Sound), Weight (Mass), Carbon reinforced plastics
Proceedings Papers

Ultra Low Emission Technology Innovations for Mid-Century Aircraft Turbine Engines

Tomas Grönstedt, Carlos Xisto, Vishal Sethi, Andrew Rolt, Nicolás García Rosa, Arne Seitz, Kyros Yakinthos, Stefan Donnerhack, Paul Newton, Nicolas Tantot, Oliver Schmitz, Anders Lundbladh
Proc. ASME. GT2016, Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T06A001, June 13–17, 2016
Paper No: GT2016-56123
DOI: https://doi.org/10.1115/GT2016-56123
View Paper titled, Ultra Low Emission Technology Innovations for Mid-Century Aircraft Turbine Engines
Click here to open pdf in another window PDF for Ultra Low Emission Technology Innovations for Mid-Century Aircraft Turbine Engines
Topics: Aircraft, Emissions, Gas turbines, Engines, Fuel efficiency, Pressure, Architecture, Combustion, High temperature materials, Optimization
Journal Articles

Multidisciplinary Assessment of the Control of the Propellers of a Pusher Geared Open Rotor—Part I: Zero-Dimensional Performance Model for Counter-Rotating Propellers

Pablo Bellocq, Inaki Garmendia, Vishal Sethi, Alexis Patin, Stefano Capodanno, Fernando Rodriguez Lucas
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2016, 138(7): 072602.
Paper No: GTP-14-1596
DOI: https://doi.org/10.1115/1.4032008
Published Online: January 12, 2016
View Article titled, Multidisciplinary Assessment of the Control of the Propellers of a Pusher Geared Open Rotor—Part I: Zero-Dimensional Performance Model for Counter-Rotating Propellers
Click here to open pdf in another window PDF for Multidisciplinary Assessment of the Control of the Propellers of a Pusher Geared Open Rotor—Part I: Zero-Dimensional Performance Model for Counter-Rotating Propellers
Topics: Carbon reinforced plastics, Propellers
Journal Articles

Multidisciplinary Assessment of the Control of the Propellers of a Pusher Geared Open Rotor—Part II: Impact on Fuel Consumption, Engine Weight, Certification Noise, and NO x Emissions

Pablo Bellocq, Inaki Garmendia, Vishal Sethi, Alexis Patin, Stefano Capodanno, Fernando Rodriguez Lucas
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2016, 138(7): 072603.
Paper No: GTP-14-1597
DOI: https://doi.org/10.1115/1.4032009
Published Online: January 12, 2016
View Article titled, Multidisciplinary Assessment of the Control of the Propellers of a Pusher Geared Open Rotor—Part II: Impact on Fuel Consumption, Engine Weight, Certification Noise, and NO x Emissions
Click here to open pdf in another window PDF for Multidisciplinary Assessment of the Control of the Propellers of a Pusher Geared Open Rotor—Part II: Impact on Fuel Consumption, Engine Weight, Certification Noise, and NO x Emissions
Topics: Carbon reinforced plastics, Emissions, Engines, Noise (Sound), Propellers, Weight (Mass), Design, Aircraft, Nitrogen oxides
Proceedings Papers

Preliminary Design Assessments of Pusher Geared Counter-Rotating Open Rotors: Part I — Low Pressure System Design Choices, Engine Preliminary Design Philosophy and Modelling Methodology

Pablo Bellocq, Iñaki Garmendia, Vishal Sethi
Proc. ASME. GT2015, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A031, June 15–19, 2015
Paper No: GT2015-43812
DOI: https://doi.org/10.1115/GT2015-43812
View Paper titled, Preliminary Design Assessments of Pusher Geared Counter-Rotating Open Rotors: Part I — Low Pressure System Design Choices, Engine Preliminary Design Philosophy and Modelling Methodology
Click here to open pdf in another window PDF for Preliminary Design Assessments of Pusher Geared Counter-Rotating Open Rotors: Part I — Low Pressure System Design Choices, Engine Preliminary Design Philosophy and Modelling Methodology
Topics: Design, Engines, Modeling, Pressure, Rotors, Emissions, Aircraft, Noise (Sound), Simulation, Fuels
Proceedings Papers

Preliminary Design Assessments of Pusher Geared Counter-Rotating Open Rotors: Part II — Impact of Low Pressure System Design on Mission Fuel Burn, Certification Noise and Emissions

Pablo Bellocq, Inaki Garmendia, Vishal Sethi
Proc. ASME. GT2015, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A032, June 15–19, 2015
Paper No: GT2015-43816
DOI: https://doi.org/10.1115/GT2015-43816
View Paper titled, Preliminary Design Assessments of Pusher Geared Counter-Rotating Open Rotors: Part II — Impact of Low Pressure System Design on Mission Fuel Burn, Certification Noise and Emissions
Click here to open pdf in another window PDF for Preliminary Design Assessments of Pusher Geared Counter-Rotating Open Rotors: Part II — Impact of Low Pressure System Design on Mission Fuel Burn, Certification Noise and Emissions
Topics: Design, Emissions, Fuels, Noise (Sound), Pressure, Rotors, Propellers, Aircraft, Carbon reinforced plastics, Engines