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Journal Articles

Options for Improving Performance of Additively Manufactured Nickel-Base Superalloys for Gas Turbine Applications

Alex Bridges, John Shingledecker, John Clark, David Crudden, Michael Kirka, Patxi Fernandex-Zelaia
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2024, 146(3): 031017.
Paper No: GTP-23-1419
https://doi.org/10.1115/1.4063631
Published Online: November 28, 2023
View Article titled, Options for Improving Performance of Additively Manufactured Nickel-Base Superalloys for Gas Turbine Applications
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Topics: Additive manufacturing, Creep, Gas turbines, Heat treating (Metalworking), Nickel, Rupture, Stress, Superalloys, Temperature, Testing
Journal Articles

Exploring Physics of Acoustic Flow Control Over Airfoils Toward Potential Application to High Work and Lift Turbines

Acar Celik, Abhijit Mitra, Tapish Agarwal, John Clark, Ian Jacobi, Beni Cukurel
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2024, 146(3): 031001.
Paper No: TURBO-23-1221
https://doi.org/10.1115/1.4063923
Published Online: November 16, 2023
View Article titled, Exploring Physics of Acoustic Flow Control Over Airfoils Toward Potential Application to High Work and Lift Turbines
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Topics: Acoustics, Excitation, Flow (Dynamics), Flow control, Separation (Technology), Airfoils, Vorticity
Proceedings Papers

Options for Improving Performance of Additively Manufactured Nickel-Base Superalloys for Gas Turbine Applications

Alex Bridges, John Shingledecker, John Clark, David Crudden, Michael Kirka, Patxi Fernandez-Zelaia
Proc. ASME. GT2023, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy, V008T17A012, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102648
https://doi.org/10.1115/GT2023-102648
View Paper titled, Options for Improving Performance of Additively Manufactured Nickel-Base Superalloys for Gas Turbine Applications
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Topics: Additive manufacturing, Cathode ray oscilloscopes, Electron beams, Gas turbines, Lasers, Nickel, Superalloys
Proceedings Papers

Exploring Physics of Acoustic Flow Control Over Airfoils Towards Potential Application to High Work and Lift Turbines

Acar Celik, Abhijit Mitra, Tapish Agarwal, John Clark, Ian Jacobi, Beni Cukurel
Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT36A021, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103462
https://doi.org/10.1115/GT2023-103462
View Paper titled, Exploring Physics of Acoustic Flow Control Over Airfoils Towards Potential Application to High Work and Lift Turbines
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Topics: Acoustics, Airfoils, Flow (Dynamics), Flow control, Flow separation, Physics, Turbines
Proceedings Papers

LES Modeling of High-Lift High-Work LPT Blades: Part II—Validation and Application

Jared Kerestes, Christopher Marks, John Clark, Mitch Wolff, Ron-Ho Ni, Nathan Fletcher
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A009, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101950
https://doi.org/10.1115/GT2023-101950
View Paper titled, LES Modeling of High-Lift High-Work LPT Blades: Part II—Validation and Application
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Topics: Blades, Modeling, Design, Computational fluid dynamics, Reynolds-averaged Navier–Stokes equations, Turbines, Separation (Technology), Bubbles, Cascades (Fluid dynamics), Engineering simulation
Journal Articles

LES MODELING OF HIGH-LIFT HIGH-WORK LPT BLADES: PART II—VALIDATION AND APPLICATION

Accepted Manuscript
Jared Kerestes, Christopher Marks, John Clark, J. Mitch Wolff, Ron-Ho (Bob) Ni, Nathan Fletcher
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach.
Paper No: TURBO-23-1159
https://doi.org/10.1115/1.4063509
Published Online: September 27, 2023
View Article titled, LES MODELING OF HIGH-LIFT HIGH-WORK LPT BLADES: PART II—VALIDATION AND APPLICATION
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Topics: Blades, Computational fluid dynamics, Design, Modeling, Turbochargers, Turbomachinery, Work (Physics), Reynolds-averaged Navier–Stokes equations, Turbines, Cascades (Fluid dynamics)
Journal Articles

Creep Analysis and Microstructural Evaluation of a Novel Additively Manufactured Nickel-Base Superalloy (ABD ® -900AM)

Alex Bridges, John Shingledecker, John Clark, David Crudden
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2023, 145(6): 061005.
Paper No: GTP-22-1421
https://doi.org/10.1115/1.4056097
Published Online: January 13, 2023
View Article titled, Creep Analysis and Microstructural Evaluation of a Novel Additively Manufactured Nickel-Base Superalloy (ABD ® -900AM)
Open the PDF for Creep Analysis and Microstructural Evaluation of a Novel Additively Manufactured Nickel-Base Superalloy (ABD ® -900AM) in another window
Topics: Creep, Rupture, Stress, Superalloys, Temperature, Nickel, Heat, Additive manufacturing
Proceedings Papers

Numerical Observations of a Stall Phenomenon in the NASA CC3 Compressor

Michael Ni, Gregorio Robles Vega, Ron Ho Ni, John Clark, Michael List
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A004, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78911
https://doi.org/10.1115/GT2022-78911
View Paper titled, Numerical Observations of a Stall Phenomenon in the NASA CC3 Compressor
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Topics: Compressors, NASA, Engineering simulation, Simulation, Flow (Dynamics), Annulus, Approximation, Design, Diffusers, Numerical analysis
Proceedings Papers

Creep Analysis and Microstructural Evaluation of a Novel Additively Manufactured Nickel-Base Superalloy (ABD®-900AM)

Alex Bridges, John Shingledecker, John Clark, David Crudden
Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T17A015, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82512
https://doi.org/10.1115/GT2022-82512
View Paper titled, Creep Analysis and Microstructural Evaluation of a Novel Additively Manufactured Nickel-Base Superalloy (ABD®-900AM)
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Topics: Additive manufacturing, Creep, Gas turbines, Nickel, Superalloys
Proceedings Papers

High Fidelity Simulation of Fluid-Structure Interaction in a 1½ Stage Axial Turbine

Joshua Zorn, Roger Davis, John Clark
Proc. ASME. GT2019, Volume 7A: Structures and Dynamics, V07AT30A004, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90972
https://doi.org/10.1115/GT2019-90972
View Paper titled, High Fidelity Simulation of Fluid-Structure Interaction in a 1½ Stage Axial Turbine
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Topics: Fluid structure interaction, Simulation, Turbines, Airfoils, Displacement, Turbomachinery, Aeroelasticity, Cylinders, Fluid dynamics, Momentum
Journal Articles

Surrogate Modeling of Manufacturing Variation Effects on Unsteady Interactions in a Transonic Turbine

Jeffrey M. Brown, Joseph Beck, Alexander Kaszynski, John Clark
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2019, 141(3): 032506.
Paper No: GTP-18-1537
https://doi.org/10.1115/1.4041314
Published Online: October 11, 2018
View Article titled, Surrogate Modeling of Manufacturing Variation Effects on Unsteady Interactions in a Transonic Turbine
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Topics: Airfoils, Geometry, Modeling, Pressure, Turbines, Manufacturing, Blades, Design
Proceedings Papers

Surrogate Modeling of Manufacturing Variation Effects on Unsteady Interactions in a Transonic Turbine

Jeffrey M. Brown, Joseph Beck, Alexander Kaszynski, John Clark
Proc. ASME. GT2018, Volume 7A: Structures and Dynamics, V07AT32A010, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76609
https://doi.org/10.1115/GT2018-76609
View Paper titled, Surrogate Modeling of Manufacturing Variation Effects on Unsteady Interactions in a Transonic Turbine
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Topics: Manufacturing, Modeling, Turbines, Computational fluid dynamics, Blades, Airfoils, Geometry, Algorithms, Design, Flow (Dynamics)
Proceedings Papers

Aerodynamic Damping Predictions for Oscillating Airfoils in Cascades Using Moving Meshes

Ron Ho Ni, William Humber, Michael Ni, Vincent R. Capece, Michael Ooten, John Clark
Proc. ASME. GT2016, Volume 7B: Structures and Dynamics, V07BT34A012, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57017
https://doi.org/10.1115/GT2016-57017
View Paper titled, Aerodynamic Damping Predictions for Oscillating Airfoils in Cascades Using Moving Meshes
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Topics: Airfoils, Damping, Flow (Dynamics), Cascades (Fluid dynamics), Modeling, Numerical analysis, Pressure, Shock waves, Suction, Turbomachinery
Proceedings Papers

Comparison of Conjugate Heat Transfer Analysis of Flat Plate Film Cooling Arrays Against Experimental Data

William Humber, Ron-Ho Ni, Jamie Johnson, John Clark, Paul King
Proc. ASME. GT2015, Volume 5A: Heat Transfer, V05AT10A006, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42398
https://doi.org/10.1115/GT2015-42398
View Paper titled, Comparison of Conjugate Heat Transfer Analysis of Flat Plate Film Cooling Arrays Against Experimental Data
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Topics: Film cooling, Flat plates, Heat transfer, Cooling, Engineering simulation, Geometry, Simulation, Flow (Dynamics), Fluids, Plates (structures)
Proceedings Papers

An Integrated Product Team Approach to the Development of a Complex Rotor System

Ryan Rollon, Guy Gualtieri, Manny Garcia, Adam Dowd, P. Dean Johnson, John Finnegan, Mike Kobelak, Rich Anthony, John Clark
Proc. ASME. GT2013, Volume 7A: Structures and Dynamics, V07AT29A001, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-94073
https://doi.org/10.1115/GT2013-94073
View Paper titled, An Integrated Product Team Approach to the Development of a Complex Rotor System
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Topics: Rotors, Teams, Rotordynamics, Design, Manufacturing, Turbines, Accelerometers, Air Force, Finite element analysis, Particle spin
Proceedings Papers

Design and Analysis of a Car-Truck Stand

John Clark, Raghu Echempati
Proc. ASME. IMECE2011, Volume 3: Design and Manufacturing, 113-119, November 11–17, 2011
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2011-63902
https://doi.org/10.1115/IMECE2011-63902
View Paper titled, Design and Analysis of a Car-Truck Stand
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Topics: Design, Trucks, Computer-aided engineering, Finite element analysis, Steel, Taguchi methods, Computers, Experimental design, Freight cars, Geometry
Proceedings Papers

Lime Usage Reduction at the Delaware Valley Resource Recovery Facility

Stewart Nicholson, John Clark
Proc. ASME. NAWTEC12, 12th Annual North American Waste-to-Energy Conference, 205-207, May 17–19, 2004
Publisher: American Society of Mechanical Engineers
Paper No: NAWTEC12-2225
https://doi.org/10.1115/NAWTEC12-2225
View Paper titled, Lime Usage Reduction at the Delaware Valley Resource Recovery Facility
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Topics: Emissions, Flue gases, Resource recovery, Waste-to-energy plants