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Journal Articles

Flow-Independent Liquid Jet-in-Crossflow Injection Using Physical Obstructions

Charles R. Clark, Michael E. Tonarely, Anthony J. Morales, Jonathan Reyes, Kareem Ahmed

J. Energy Resour. Technol. October 2022, 144(10): 102106.

Paper No: JERT-21-2094

DOI: https://doi.org/10.1115/1.4053892

Published Online: March 18, 2022

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Topics: Flow (Dynamics), Trajectories (Physics), Combustion, Momentum

Journal Articles

Modal Analysis of Breakup Mechanisms for a Liquid Jet in Crossflow

Sheikh Salauddin, Wilmer Flores, Michelle Otero, Bernhard Stiehl, Kareem Ahmed

J. Energy Resour. Technol. March 2022, 144(3): 032103.

Paper No: JERT-21-1582

DOI: https://doi.org/10.1115/1.4052859

Published Online: December 14, 2021

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Topics: Flow (Dynamics), Fuels, Modal analysis, Momentum, Shear (Mechanics), Wavelength, Dynamics (Mechanics), Turbulence

Journal Articles

Carbon and Hydrocarbon Particle Seeding in Air-Breathing Rotating Detonation Engine

Robert F. Burke, Taha Rezzag, Kareem Ahmed

J. Eng. Gas Turbines Power. January 2022, 144(1): 011013.

Paper No: GTP-21-1382

DOI: https://doi.org/10.1115/1.4051987

Published Online: October 13, 2021

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Topics: Explosions, Particulate matter, Waves, Engines, Carbon

Proceedings Papers

A Kinematic Study of Individual Rotating Detonation Engine Waves Using K-means Algorithm

Taha Rezzag, Robert Burke, Kareem Ahmed

Proc. ASME. GT2021, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A019, June 7–11, 2021

Paper No: GT2021-58814

DOI: https://doi.org/10.1115/GT2021-58814

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Topics: Algorithms, Engines, Explosions, Kinematics, Waves

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

Paper No: GT2021-59421

DOI: https://doi.org/10.1115/GT2021-59421

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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)

Journal Articles

Carbon-Based Multi-Phase Rotating Detonation Engine

Ian Dunn, Wilmer Flores, Anthony Morales, Vidhan Malik, Kareem Ahmed

J. Energy Resour. Technol. April 2022, 144(4): 042101.

Paper No: JERT-21-1265

DOI: https://doi.org/10.1115/1.4051540

Published Online: July 1, 2021

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Topics: Carbon, Explosions, Waves, Coal, Engines

Journal Articles

Fuel Stratification Influence on NO x Emission in a Premixed Axial Reacting Jet-in-Crossflow at High Pressure

Bernhard Stiehl, Tommy Genova, Michelle Otero, Scott Martin, Kareem Ahmed

J. Energy Resour. Technol. December 2021, 143(12): 122303.

Paper No: JERT-20-2044

DOI: https://doi.org/10.1115/1.4050052

Published Online: March 4, 2021

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Topics: Combustion, Combustion chambers, Emissions, Flames, Fuels, Nitrogen oxides, Temperature, Methane, Computational fluid dynamics, Flow (Dynamics)

Journal Articles

The Effect of Pressure on NO x Entitlement and Reaction Timescales in a Premixed Axial Jet-In-Crossflow

Bernhard Stiehl, Michelle Otero, Tommy Genova, Scott Martin, Kareem Ahmed

J. Energy Resour. Technol. November 2021, 143(11): 112306.

Paper No: JERT-20-2043

DOI: https://doi.org/10.1115/1.4049609

Published Online: February 19, 2021

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Topics: Combustion, Combustion chambers, Computational fluid dynamics, Emissions, Flames, Nitrogen oxides, Pressure, Turbulence, High pressure (Physics), Temperature

Journal Articles

Partial Premixing Effects on the Reacting Jet of a High-Pressure Axially Staged Combustor

Tommy Genova, Michelle Otero, Jonathan Reyes, Scott Martin, Kareem Ahmed

J. Eng. Gas Turbines Power. March 2021, 143(3): 031006.

Paper No: GTP-20-1582

DOI: https://doi.org/10.1115/1.4049700

Published Online: February 8, 2021

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Topics: Combustion chambers, Flames, Flow (Dynamics), Fuels, High pressure (Physics), Emissions, Gas turbines, Jets, Chemiluminescence, Methane

Journal Articles

Simulation of Premixed and Partially Premixed Jet-in-Crossflow Flames at High Pressure

Bernhard Stiehl, Michelle Otero, Tommy Genova, Tyler Worbington, Jonathan Reyes, Scott Martin, Carlos Velez, Kareem Ahmed

J. Eng. Gas Turbines Power. March 2021, 143(3): 031001.

Paper No: GTP-20-1591

DOI: https://doi.org/10.1115/1.4049703

Published Online: February 8, 2021

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Topics: Computational fluid dynamics, Flames, Ignition, High pressure (Physics), Temperature, Combustion chambers, Simulation, Oxygen, Fuels, Combustion

Proceedings Papers

Multiphase Rotating Detonation Engine

Ian Dunn, Kareem Ahmed

Proc. ASME. GT2020, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A055, September 21–25, 2020

Paper No: GT2020-15017

DOI: https://doi.org/10.1115/GT2020-15017

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Topics: Coal, Engines, Explosions

Proceedings Papers

Partial Premixing Effects on the Reacting Jet of a High Pressure Axially Staged Combustor

Tommy Genova, Jr., Michelle Otero, Jonathan Reyes, Kareem Ahmed, Scott Martin

Proc. ASME. GT2020, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A024, September 21–25, 2020

Paper No: GT2020-15760

DOI: https://doi.org/10.1115/GT2020-15760

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Topics: Combustion chambers, Emissions, High pressure (Physics), Flames, Fuels, Gas turbines, Methane, Chemiluminescence, Combustion, Ejectors

Proceedings Papers

Simulation of Premixed and Partially Premixed Jet-in-Crossflow Flames at High-Pressure

Bernhard Stiehl, Michelle Otero, Tommy Genova, Tyler Worbington, Jonathan Reyes, Kareem Ahmed, Scott Martin, Carlos Velez

Proc. ASME. GT2020, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A038, September 21–25, 2020

Paper No: GT2020-16061

DOI: https://doi.org/10.1115/GT2020-16061

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Topics: Combustion, Combustion chambers, Flames, Gas turbines, High pressure (Physics), Simulation

Proceedings Papers

Fluid Flow Characteristics of a Co-Flow Fluidic Slot Jet Thrust Augmentation Propulsion System

Brian Garrett, Kareem Ahmed

Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T03A034, July 13–15, 2020

Paper No: FEDSM2020-20006

DOI: https://doi.org/10.1115/FEDSM2020-20006

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Topics: Airfoils, Flow (Dynamics), Fluid dynamics, Jets, Propulsion systems, Thrust, Turbulence

Proceedings Papers

Combustion and Emission Characteristics of a Lean Axial-Stage Combustor

Bernhard Stiehl, Tyler Worbington, Alexander Miegel, Scott Martin, Carlos Velez, Kareem Ahmed

Proc. ASME. GT2019, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A044, June 17–21, 2019

Paper No: GT2019-91796

DOI: https://doi.org/10.1115/GT2019-91796

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Topics: Combustion, Combustion chambers, Emissions, Nitrogen oxides, Computational fluid dynamics, Flames, Flow (Dynamics), Pressure, Vortices, Chemical kinetics

Proceedings Papers

Adiabatic Film Cooling Effectiveness Measurement of High Performance Combustion Liner Slot Jets

Wilmer Flores, Andres Curbelo, Luisana Calderon, Jayanta S. Kapat, Kareem Ahmed

Proc. ASME. GT2019, Volume 5B: Heat Transfer, V05BT19A023, June 17–21, 2019

Paper No: GT2019-91783

DOI: https://doi.org/10.1115/GT2019-91783

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Topics: Combustion, Film cooling, Jets, Pressure, Absorption, Flow (Dynamics), Fracture (Materials), Fracture (Process), Geometry, Orifices

Proceedings Papers

First Demonstration of an Acousto-Optically Modulated Quantum Cascade Laser As a Broadband, Time-Resolved Combustion Diagnostic

Zachary E. Loparo, Kareem Ahmed, Subith S. Vasu, Andrey V. Muraviev, Pedro Figueiredo, Arkadiy Lyakh, Robert E. Peale

Proc. ASME. GT2018, Volume 4A: Combustion, Fuels, and Emissions, V04AT04A025, June 11–15, 2018

Paper No: GT2018-75424

DOI: https://doi.org/10.1115/GT2018-75424

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Topics: Cascades (Fluid dynamics), Combustion, Lasers, Temperature, Absorption spectroscopy, Emissions, Engineering simulation, Fourier transform infrared spectroscopy, Gas turbines, Heating

Journal Articles

Shock Tube Demonstration of Acousto-Optically Modulated Quantum Cascade Laser as a Broadband, Time-Resolved Combustion Diagnostic

Zachary E. Loparo, Andrey V. Muraviev, Pedro Figueiredo, Arkadiy Lyakh, Robert E. Peale, Kareem Ahmed, Subith S. Vasu

J. Energy Resour. Technol. November 2018, 140(11): 112202.

Paper No: JERT-18-1330

DOI: https://doi.org/10.1115/1.4040381

Published Online: June 12, 2018

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Topics: Absorption, Cascades (Fluid dynamics), Combustion, Lasers, Shock tubes, Temperature, Shock (Mechanics), Pressure, Spectra (Spectroscopy), Emissions

Proceedings Papers

Simultaneous Spectral Imaging of C2/CH at Low-to-High Pressure Combustion

Jonathan Reyes, Kareem Ahmed

Proc. ASME. GT2017, Volume 4A: Combustion, Fuels and Emissions, V04AT04A047, June 26–30, 2017

Paper No: GT2017-63722

DOI: https://doi.org/10.1115/GT2017-63722

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Topics: Combustion, Imaging, Pressure, Combustion chambers, Flames, Fuels, Design, Indexing (Machining), Diffusion flames, Ejectors

Proceedings Papers

Optimization of Supercritical CO 2 Brayton Cycle for Simple Cycle Gas Turbines Exhaust Heat Recovery Using Genetic Algorithm

Akshay Khadse, Lauren Blanchette, Jayanta Kapat, Subith Vasu, Kareem Ahmed

Proc. ASME. GT2017, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A013, June 26–30, 2017

Paper No: GT2017-63696

DOI: https://doi.org/10.1115/GT2017-63696

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Topics: Brayton cycle, Cycles, Exhaust systems, Gas turbines, Genetic algorithms, Heat recovery, Optimization, Supercritical carbon dioxide, Temperature, Flow (Dynamics)

Journal citation

NARROW

Flow-Independent Liquid Jet-in-Crossflow Injection Using Physical Obstructions

Modal Analysis of Breakup Mechanisms for a Liquid Jet in Crossflow

Carbon and Hydrocarbon Particle Seeding in Air-Breathing Rotating Detonation Engine

A Kinematic Study of Individual Rotating Detonation Engine Waves Using K-means Algorithm

Localized Breakup Instabilities for a Liquid Jet in Crossflow

Carbon-Based Multi-Phase Rotating Detonation Engine

Fuel Stratification Influence on NO x Emission in a Premixed Axial Reacting Jet-in-Crossflow at High Pressure

The Effect of Pressure on NO x Entitlement and Reaction Timescales in a Premixed Axial Jet-In-Crossflow

Partial Premixing Effects on the Reacting Jet of a High-Pressure Axially Staged Combustor

Simulation of Premixed and Partially Premixed Jet-in-Crossflow Flames at High Pressure

Multiphase Rotating Detonation Engine

Partial Premixing Effects on the Reacting Jet of a High Pressure Axially Staged Combustor

Simulation of Premixed and Partially Premixed Jet-in-Crossflow Flames at High-Pressure

Fluid Flow Characteristics of a Co-Flow Fluidic Slot Jet Thrust Augmentation Propulsion System

Combustion and Emission Characteristics of a Lean Axial-Stage Combustor

Adiabatic Film Cooling Effectiveness Measurement of High Performance Combustion Liner Slot Jets

First Demonstration of an Acousto-Optically Modulated Quantum Cascade Laser As a Broadband, Time-Resolved Combustion Diagnostic

Shock Tube Demonstration of Acousto-Optically Modulated Quantum Cascade Laser as a Broadband, Time-Resolved Combustion Diagnostic

Simultaneous Spectral Imaging of C2/CH at Low-to-High Pressure Combustion

Optimization of Supercritical CO 2 Brayton Cycle for Simple Cycle Gas Turbines Exhaust Heat Recovery Using Genetic Algorithm

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