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Chol-Bum M. Kweon
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Journal Articles

A Method for Predicting the Aeroelastic Response of Radial Turbomachines

Accepted Manuscript
David Fellows, Vincent Iskandar, Daniel Bodony, Ryan C. McGowan, Sang-Guk Kang, Aaron J. Pope, Chol-Bum M. Kweon
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach.
Paper No: TURBO-22-1117
DOI: https://doi.org/10.1115/1.4057062
Published Online: March 8, 2023
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Topics: Computational fluid dynamics, Turbine blades, Turbochargers, Turbomachinery, Flutter (Aerodynamics), Blades, Fluids, Turbines, Aircraft, Combustion
Journal Articles

Transient Thermo-mechanical Stress Analysis of Hot Surface Probe Using Sequentially Coupled Cfd-fea Approach

Accepted Manuscript
Sang-Guk Kang, Je Ir Ryu, Austen Motily, Prapassorn Numkiatsakul, Tonghun Lee, Waltraud Kriven, Kenneth Kim, Chol-Bum M. Kweon
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power.
Paper No: GTP-22-1559
DOI: https://doi.org/10.1115/1.4056426
Published Online: December 7, 2022
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Topics: Finite element analysis, Probes, Stress analysis (Engineering), Thermomechanics, Transients (Dynamics), Boundary-value problems, Computer software, Durability, Engines, Stress
Proceedings Papers

Impact of Ignition Assistant on Combustion of Cetane 30 and 35 Jet-Fuel Blends in a Compression-Ignition Engine at Moderate Load and Speed

Niranjan Miganakallu, Jacob Stafford, Eri Amezcua, Kenneth S. Kim, Chol-Bum M. Kweon, David A. Rothamer
Proc. ASME. ICEF2022, ASME 2022 ICE Forward Conference, V001T03A011, October 16–19, 2022
Paper No: ICEF2022-90704
DOI: https://doi.org/10.1115/ICEF2022-90704
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Topics: Combustion, Diesel engines, Fuels, Ignition, Jet fuels, Luminescence, Stress
Proceedings Papers

Numerical Modeling and Analysis of Energy-Assisted Compression Ignition of Varying Cetane Number Jet Fuels for High-Altitude Operation

Harsh Darshan Sapra, Randy Hessel, Eri Amezcua, Jacob Stafford, Niranjan Miganakallu, David Rothamer, Kenneth Kim, Chol-Bum M. Kweon, Sage Kokjohn
Proc. ASME. ICEF2022, ASME 2022 ICE Forward Conference, V001T01A003, October 16–19, 2022
Paper No: ICEF2022-89329
DOI: https://doi.org/10.1115/ICEF2022-89329
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Topics: Chemistry, Compression, Computational fluid dynamics, Computer simulation, Engines, Ignition, Jet fuels, Turbulence
Proceedings Papers

Transient Thermo-Mechanical Stress Analysis of Hot Surface Probe Using Sequentially Coupled CFD-FEA Approach

Sang-Guk Kang, Je Ir Ryu, Austen H. Motily, Prapassorn Numkiatsakul, Tonghun Lee, Waltraud M. Kriven, Kenneth S. Kim, Chol-Bum M. Kweon
Proc. ASME. ICEF2021, ASME 2021 Internal Combustion Engine Division Fall Technical Conference, V001T06A008, October 13–15, 2021
Paper No: ICEF2021-67858
DOI: https://doi.org/10.1115/ICEF2021-67858
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Topics: Computational fluid dynamics, Finite element analysis, Ignition, Probes, Stress, Stress analysis (Engineering), Thermomechanics, Transients (Dynamics)
Proceedings Papers

Effect of Altitude on Turbomachinery Vibration in an Aircraft Compression-Ignition Engine

Ryan C. McGowan, David W. Fellows, Daniel J. Bodony, Jovany R. Mojica, James J. Pieri, Chol-Bum M. Kweon, Joseph A. Gibson, Rik D. Meininger, Marshall R. Musser
Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T20A022, September 21–25, 2020
Paper No: GT2020-15661
DOI: https://doi.org/10.1115/GT2020-15661
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Topics: Aircraft, Diesel engines, Flutter (Aerodynamics), Resonance, Turbochargers, Turbomachinery, Vibration
Proceedings Papers

Structural Dynamics and Aeroelasticity of Airborne Diesel Engine Turbochargers

Ryan C. McGowan, Muthuvel Murugan, Michael T. Szedlmayer, Kenneth S. Kim, Kurt M. Kruger, David J. Gondol, Chol-Bum M. Kweon, Peter J. Clerkin, Rik D. Meininger, Joseph A. Gibson, Christopher A. Lindsey, Bernard N. Acker, Marshall R. Musser
Proc. ASME. GT2019, Volume 8: Microturbines, Turbochargers, and Small Turbomachines; Steam Turbines, V008T26A024, June 17–21, 2019
Paper No: GT2019-91843
DOI: https://doi.org/10.1115/GT2019-91843
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Topics: Aeroelasticity, Diesel engines, Structural dynamics, Turbochargers, Blades, Diesel, Flow (Dynamics), Pressure, Resonance, Stress
Proceedings Papers

Fuel Effects on Nozzle Flow and Spray Using Fully Coupled Eulerian Simulations

Luis Bravo, Qingluan Xue, Sibendu Som, Christopher Powell, Chol-Bum M. Kweon
Proc. ASME. POWER2015, ASME 2015 Power Conference, V001T03A012, June 28–July 2, 2015
Paper No: POWER2015-49554
DOI: https://doi.org/10.1115/POWER2015-49554
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Topics: Engineering simulation, Flow (Dynamics), Fuels, Nozzles, Simulation, Sprays, Dynamics (Mechanics), Density, Turbulence, X-rays
Proceedings Papers

A Comparison of Shadowgraphy and X-Ray Computed Tomography in Liquid Spray Analysis

Zachary Lee, Daniel Eichner, Jonathan Tennis, Matthew Ryan, Tyler Sowell, Michael Benson, Bret Van Poppel, Thomas Nelson, Pablo Vasquez Guzman, Rebecca Fahrig, John Eaton, Matthew S. Kurman, Chol-Bum M. Kweon
Proc. ASME. IMECE2014, Volume 7: Fluids Engineering Systems and Technologies, V007T09A095, November 14–20, 2014
Paper No: IMECE2014-38770
DOI: https://doi.org/10.1115/IMECE2014-38770
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Topics: Computerized tomography, Sprays, Nozzles, Particulate matter, Combustion, X-ray absorption, Design, Emissions, Fuel efficiency, Fuels
Proceedings Papers

Homogeneous Charge Compression Ignition (HCCI) Engine Fueled With Natural Gas for Stationary Power Generation Applications

Chol-Bum M. Kweon, John M. Pratapas, David E. Foster
Proc. ASME. POWER2006, ASME 2006 Power Conference, 567-578, May 2–4, 2006
Paper No: POWER2006-88235
DOI: https://doi.org/10.1115/POWER2006-88235
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Topics: Energy generation, Engines, Homogeneous charge compression ignition engines, Natural gas, Combustion, Diesel, Pressure, Temperature, Cylinders, Methane