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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

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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

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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

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

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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

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Topics: Aircraft engines, Combustion chambers, Emissions, Nitrogen oxides

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

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Topics: Combustion systems, Design, Ejectors, Hydrogen, Nitrogen oxides, Modeling, Emissions, Carbon, Combustion, Commercial air transport

Proceedings Papers

NO x Emissions Predictions for a Hydrogen Micromix Combustion System

Giulia Babazzi, Pierre Q. Gauthier, Parash Agarwal, Jonathan McClure, Vishal Sethi

Paper No: GT2019-90532

DOI: https://doi.org/10.1115/GT2019-90532

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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

Paper No: GT2019-90538

DOI: https://doi.org/10.1115/GT2019-90538

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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

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Topics: Electrochemical impedance spectroscopy, Rotors, Engines, Aircraft, Fuels, Emissions, Aviation, Carbon dioxide, Turbofans, 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

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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

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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

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

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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

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

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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

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Topics: Computational fluid dynamics, Fuel injectors, Fuels, Sprays, Ejectors, Coke, Combustion systems, Nozzles, Combustion, Computer simulation

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

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Topics: Aircraft, Emissions, Gas turbines, Engines, Fuel efficiency, Pressure, Architecture, Combustion, High temperature materials, Optimization

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

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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

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Topics: Aircraft, Design, Rotors, Turbines, Engines, Propellers, Design methodology, Noise (Sound), Weight (Mass), Carbon reinforced plastics

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

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

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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

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

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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

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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

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Topics: Design, Emissions, Fuels, Noise (Sound), Pressure, Rotors, Propellers, Aircraft, Carbon reinforced plastics, Engines

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Journal citation

NARROW

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

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

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

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

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

NO x Emissions Predictions for a Hydrogen Micromix Combustion System

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

Technical and Economic Viability of an EIS 2050 Geared Open Rotor

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

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

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

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

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

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

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

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

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

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

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

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

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