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Journal Articles

Control-Oriented Modeling of a Solid Oxide Fuel Cell Affected by Redox Cycling Using a Novel Deep Learning Approach

Mohamadali Tofigh, Masood Fakouri Hasanabadi, Daniel Smith, Ali Kharazmi, Amir Reza Hanifi, Charles R. Koch, Mahdi Shahbakhti
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. March 2025, 147(2): 021006.
Paper No: DS-24-1150
https://doi.org/10.1115/1.4066268
Published Online: September 10, 2024
View Article titled, Control-Oriented Modeling of a Solid Oxide Fuel Cell Affected by Redox Cycling Using a Novel Deep Learning Approach
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Topics: Modeling, Solid oxide fuel cells, Fuel cells, Cycles, Computation, Dynamics (Mechanics), Oxidation, Deep learning
Journal Articles

Best Architecture of an Artificial Neural Network to Model Prefilming Airblast Atomization: Not So Deep Learning

G. Chaussonnet, S. Gepperth, S. Holz, R. Koch, H.-J. Bauer
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2021, 143(7): 071006.
Paper No: GTP-20-1754
https://doi.org/10.1115/1.4049911
Published Online: March 29, 2021
View Article titled, Best Architecture of an Artificial Neural Network to Model Prefilming Airblast Atomization: Not So Deep Learning
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Topics: Artificial neural networks, Drops, Errors, Surface mount devices, Databases, Sprays, Shapes, Architecture, Deformation
Proceedings Papers

Finding the Best Architecture of an Artificial Neural Network to Model Prefilming Airblast Atomization: Not So Deep Learning

G. Chaussonnet, S. Gepperth, S. Holz, R. Koch, H.-J. Bauer
Proc. ASME. GT2020, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A055, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16172
https://doi.org/10.1115/GT2020-16172
View Paper titled, Finding the Best Architecture of an Artificial Neural Network to Model Prefilming Airblast Atomization: Not So Deep Learning
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Topics: Artificial neural networks, Architecture, Drops, Shapes, Testing, Computers, Databases, Deformation, Errors, Fittings
Proceedings Papers

Air-Assisted Atomization at Constant Mass and Momentum Flow Rate: Investigation of the Ambient Pressure Influence With the SPH Method

G. Chaussonnet, S. Joshi, S. Wachter, R. Koch, T. Jakobs, T. Kolb, H.-J. Bauer
Proc. ASME. GT2019, Volume 3: Coal, Biomass, Hydrogen, and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration; Organic Rankine Cycle Power Systems, V003T03A004, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90372
https://doi.org/10.1115/GT2019-90372
View Paper titled, Air-Assisted Atomization at Constant Mass and Momentum Flow Rate: Investigation of the Ambient Pressure Influence With the SPH Method
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Topics: Flow (Dynamics), Momentum, Pressure, Sprays, Cascades (Fluid dynamics), Chain, Drops, Fluids, Gas flow, Hydrodynamics
Journal Articles

Smoothed Particle Hydrodynamics Simulation of an Air-Assisted Atomizer Operating at High Pressure: Influence of Non-Newtonian Effects

G. Chaussonnet, R. Koch, H.-J. Bauer, A. Sänger, T. Jakobs, T. Kolb
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. June 2018, 140(6): 061301.
Paper No: FE-17-1483
https://doi.org/10.1115/1.4038753
Published Online: January 30, 2018
View Article titled, Smoothed Particle Hydrodynamics Simulation of an Air-Assisted Atomizer Operating at High Pressure: Influence of Non-Newtonian Effects
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Topics: Drops, Fluids, Hydrodynamics, Nozzles, Particulate matter, Pressure, Simulation, Sprays, Viscosity, High pressure (Physics)
Proceedings Papers

Time-Response of Recent Prefilming Airblast Atomization Models in an Oscillating Air Flow Field

G. Chaussonnet, A. Müller, S. Holz, R. Koch, H.-J. Bauer
Proc. ASME. GT2017, Volume 4A: Combustion, Fuels and Emissions, V04AT04A002, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63041
https://doi.org/10.1115/GT2017-63041
View Paper titled, Time-Response of Recent Prefilming Airblast Atomization Models in an Oscillating Air Flow Field
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Topics: Air flow, Surface mount devices, Calibration, Computational fluid dynamics, Flow (Dynamics), Low-pass filters, Dynamics (Mechanics), Phase shift, Robustness, Simulation
Proceedings Papers

SPH Simulation of an Air-Assisted Atomizer Operating at High Pressure: Influence of Non-Newtonian Effects

G. Chaussonnet, R. Koch, H.-J. Bauer, A. Sänger, T. Jakobs, T. Kolb
Proc. ASME. GT2017, Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration Applications; Organic Rankine Cycle Power Systems, V003T03A001, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63033
https://doi.org/10.1115/GT2017-63033
View Paper titled, SPH Simulation of an Air-Assisted Atomizer Operating at High Pressure: Influence of Non-Newtonian Effects
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Topics: High pressure (Physics), Simulation, Viscosity, Accounting, Atmospheric pressure, Ceramic matrix composites, Drops, Dynamics (Mechanics), Fluids, Hydrodynamics
Journal Articles

Time-Response of Recent Prefilming Airblast Atomization Models in an Oscillating Air Flow Field

G. Chaussonnet, A. Müller, S. Holz, R. Koch, H.-J. Bauer
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2017, 139(12): 121501.
Paper No: GTP-17-1296
https://doi.org/10.1115/1.4037325
Published Online: August 16, 2017
View Article titled, Time-Response of Recent Prefilming Airblast Atomization Models in an Oscillating Air Flow Field
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Topics: Calibration, Flow (Dynamics), Sprays, Surface mount devices, Air flow, Drops, Steady state, Computational fluid dynamics, Phase shift
Journal Articles

Short Helical Combustor: Dynamic Flow Analysis in a Combustion System With Angular Air Supply

B. Ariatabar, R. Koch, H.-J. Bauer
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2017, 139(4): 041505.
Paper No: GTP-16-1344
https://doi.org/10.1115/1.4034688
Published Online: October 26, 2016
View Article titled, Short Helical Combustor: Dynamic Flow Analysis in a Combustion System With Angular Air Supply
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Topics: Combustion chambers, Flow (Dynamics), Angular momentum, Pressure
Proceedings Papers

Computation of Liquid Fuel Atomization and Mixing by Means of the SPH Method: Application to a Jet Engine Fuel Nozzle

T. Dauch, S. Braun, L. Wieth, G. Chaussonnet, M. Keller, R. Koch, H.-J. Bauer
Proc. ASME. GT2016, Volume 4A: Combustion, Fuels and Emissions, V04AT04A001, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56023
https://doi.org/10.1115/GT2016-56023
View Paper titled, Computation of Liquid Fuel Atomization and Mixing by Means of the SPH Method: Application to a Jet Engine Fuel Nozzle
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Topics: Computation, Fuels, Jet fuels, Nozzles, Sprays, Design, Computational fluid dynamics, Drops, Film flow, Flow (Dynamics)
Journal Articles

Short Helical Combustor: Concept Study of an Innovative Gas Turbine Combustor With Angular Air Supply

B. Ariatabar, R. Koch, H.-J. Bauer, D.-A. Negulescu
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2016, 138(3): 031503.
Paper No: GTP-15-1291
https://doi.org/10.1115/1.4031362
Published Online: September 22, 2015
View Article titled, Short Helical Combustor: Concept Study of an Innovative Gas Turbine Combustor With Angular Air Supply
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Topics: Combustion, Combustion chambers, Flames, Flow (Dynamics), Flow simulation
Proceedings Papers

Short Helical Combustor: Concept Study of an Innovative Gas Turbine Combustor

B. Ariatabar, R. Koch, H.-J. Bauer
Proc. ASME. GT2015, Volume 4A: Combustion, Fuels and Emissions, V04AT04A071, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42963
https://doi.org/10.1115/GT2015-42963
View Paper titled, Short Helical Combustor: Concept Study of an Innovative Gas Turbine Combustor
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Topics: Combustion chambers, Gas turbines, Design, Flames, Flow (Dynamics), Combustion, Cooling, Deflection, Fluid dynamics, Geometry
Proceedings Papers

Theoretical and Experimental Study of Hydrocyclone Performance and Equivalent Settling Area

Reza Sabbagh, Michael G. Lipsett, Charles R. Koch, David S. Nobes
Proc. ASME. IMECE2014, Volume 7: Fluids Engineering Systems and Technologies, V007T09A044, November 14–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2014-37482
https://doi.org/10.1115/IMECE2014-37482
View Paper titled, Theoretical and Experimental Study of Hydrocyclone Performance and Equivalent Settling Area
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Topics: Design, Experimental methods, Gravity (Force), Separation (Technology)
Proceedings Papers

Dynamics of Thin Liquid Bilayers Subjected to an External Electric Field

Hadi Nazaripoor, Charles R. Koch, Subir Bhattacharjee
Proc. ASME. IMECE2014, Volume 7: Fluids Engineering Systems and Technologies, V007T09A062, November 14–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2014-37302
https://doi.org/10.1115/IMECE2014-37302
View Paper titled, Dynamics of Thin Liquid Bilayers Subjected to an External Electric Field
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Topics: Dynamics (Mechanics), Electric fields, Dimensions, Electrical properties, Electrostatic interactions, Pattern formation, Spatiotemporal phenomena, Surface tension, Thin films, Van der Waals forces
Proceedings Papers

In-Situ Soot Measurements in an Operating Engine Gas Turbine Combustor

R. Koch, S. Wittig, H.-J. Feld, H.-J. Mohr
Proc. ASME. GT1991, Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V003T06A016, June 3–6, 1991
Publisher: American Society of Mechanical Engineers
Paper No: 91-GT-177
https://doi.org/10.1115/91-GT-177
View Paper titled, In-Situ Soot Measurements in an Operating Engine Gas Turbine Combustor
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Topics: Combustion chambers, Engines, Gas turbines, Soot, Particulate matter, Density, Turbines, Absorption, Electromagnetic scattering, Flames
Proceedings Papers

Spectral and Timeresolved Radiation Measurements in a Model Gas Turbine Combustor

R. Koch, W. Krebs, R. Jeckel, B. Ganz, S. Wittig
Proc. ASME. GT1994, Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V003T06A032, June 13–16, 1994
Publisher: American Society of Mechanical Engineers
Paper No: 94-GT-403
https://doi.org/10.1115/94-GT-403
View Paper titled, Spectral and Timeresolved Radiation Measurements in a Model Gas Turbine Combustor
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Topics: Combustion chambers, Gas turbines, Radiation (Physics), Turbulence, Computational fluid dynamics, Flow (Dynamics), Diffusion flames, Radiative heat transfer
Journal Articles

Particle Motion in a Macroscale, Multiwavelength Acoustic Field

Alireza Setayeshgar, Michael G. Lipsett, Charles R. Koch, David S. Nobes
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2015, 137(1): 011302.
Paper No: FE-14-1010
https://doi.org/10.1115/1.4027777
Published Online: September 10, 2014
View Article titled, Particle Motion in a Macroscale, Multiwavelength Acoustic Field
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Topics: Acoustics, Particulate matter
Proceedings Papers

Evaluation of Advanced Two-Phase Flow and Combustion Models for Predicting Low Emission Combustors

G. Klose, R. Schmehl, R. Meier, G. Meier, R. Koch, S. Wittig, M. Hettel, W. Leuckel, N. Zarzalis
Proc. ASME. GT2000, Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V002T02A051, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0133
https://doi.org/10.1115/2000-GT-0133
View Paper titled, Evaluation of Advanced Two-Phase Flow and Combustion Models for Predicting Low Emission Combustors
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Topics: Combustion, Combustion chambers, Emissions, Two-phase flow, Aircraft engines, Computational methods, Computer simulation, Eddies (Fluid dynamics), Energy dissipation, Flow (Dynamics)
Proceedings Papers

Experimental Investigations of the Temporal Air-Fuel Mixing Fluctuations and Cold Flow Instabilities of a Premixing Gas Turbine Burner

K.-U. Schildmacher, R. Koch, S. Wittig, W. Krebs, S. Hoffmann
Proc. ASME. GT2000, Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V002T02A005, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0084
https://doi.org/10.1115/2000-GT-0084
View Paper titled, Experimental Investigations of the Temporal Air-Fuel Mixing Fluctuations and Cold Flow Instabilities of a Premixing Gas Turbine Burner
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Topics: Flow instability, Fluctuations (Physics), Fuels, Gas turbines, Combustion, Nitrogen oxides, Atmospheric pressure, Combustion chambers, Emissions, Flames
Proceedings Papers

Flashback in Lean Prevaporized Premixed Combustion: Non-Swirling Turbulent Pipe Flow Study

Olaf Schäfer, R. Koch, S. Wittig
Proc. ASME. GT2001, Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V002T02A020, June 4–7, 2001
Publisher: American Society of Mechanical Engineers
Paper No: 2001-GT-0053
https://doi.org/10.1115/2001-GT-0053
View Paper titled, Flashback in Lean Prevaporized Premixed Combustion: Non-Swirling Turbulent Pipe Flow Study
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Topics: Combustion, Pipe flow, Swirling flow, Turbulence, Flames, Atmospheric pressure, Boundary layers, Ducts, Fluids, Quenching (Metalworking)