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Randall Mathison
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Journal Articles

Experimental Determination of Blade Tip Rub Forces in a Multiblade System

Robin Reifsnyder, Christopher Keener, Randall Mathison, Kiran D'Souza
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2023, 145(4): 041011.
Paper No: GTP-22-1402
DOI: https://doi.org/10.1115/1.4055884
Published Online: December 13, 2022
View Article titled, Experimental Determination of Blade Tip Rub Forces in a Multiblade System
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Topics: Blades, Stress
Proceedings Papers

Experimental Determination of Blade Tip Rub Forces in a Multi-Blade System

Robin Reifsnyder, Chris Keener, Randall Mathison, Kiran D’Souza
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT27A032, June 13–17, 2022
Paper No: GT2022-83344
DOI: https://doi.org/10.1115/GT2022-83344
View Paper titled, Experimental Determination of Blade Tip Rub Forces in a Multi-Blade System
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Topics: Blades, Stress, Frequency response, Gas turbines, Physics, Rotating blades, Shaft angle encoders, Turbomachinery
Proceedings Papers

Effect of Vane/Blade Interaction for a Cooled Turbine Blade — Part II: Unsteady Pressure and Heat Transfer Distributions

Spencer Sperling, Louis Christensen, Randall Mathison, Hakan Aksoy, Jong Liu, Jeremy Nickol
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A002, June 13–17, 2022
Paper No: GT2022-78272
DOI: https://doi.org/10.1115/GT2022-78272
View Paper titled, Effect of Vane/Blade Interaction for a Cooled Turbine Blade — Part II: Unsteady Pressure and Heat Transfer Distributions
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Topics: Blades, Heat transfer, Pressure, Turbine blades, Cooling, Suction, Film cooling, Flow (Dynamics), Fluctuations (Physics), Airfoils
Proceedings Papers

Effect of Vane/Blade Interaction for a Cooled Turbine Blade — Part I: Comparison of Experimental and Numerical Results

Spencer Sperling, Louis Christensen, Randall Mathison, Hakan Aksoy, Jong Liu, Jeremy Nickol
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A001, June 13–17, 2022
Paper No: GT2022-78271
DOI: https://doi.org/10.1115/GT2022-78271
View Paper titled, Effect of Vane/Blade Interaction for a Cooled Turbine Blade — Part I: Comparison of Experimental and Numerical Results
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Topics: Blades, Turbine blades, Engineering simulation, Simulation, Gas turbines, Heat transfer, Turbines, Airfoils, Flow (Dynamics), Pressure
Proceedings Papers

Comparison of Time-Accurate and Steady-State Predictions of Heat Transfer and Pressure for a Rotating Cooled Turbine

Spencer Sperling, Louis Christensen, Randall Mathison, Hakan Aksoy, Jong Liu, Jeremy Nickol
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A003, June 13–17, 2022
Paper No: GT2022-78273
DOI: https://doi.org/10.1115/GT2022-78273
View Paper titled, Comparison of Time-Accurate and Steady-State Predictions of Heat Transfer and Pressure for a Rotating Cooled Turbine
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Topics: Heat transfer, Pressure, Steady state, Turbines, Gas turbines, Simulation, Flow (Dynamics), Modeling, Approximation, Computational fluid dynamics
Proceedings Papers

Film Cooling Hole Shape Effects on Turbine Blade Heat Transfer – Part I: Computational Comparison to Experiment

Spencer Sperling, Louis Christensen, Randall Mathison, Hakan Aksoy, Jong Liu, Jeremy Nickol
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A002, June 13–17, 2022
Paper No: GT2022-78244
DOI: https://doi.org/10.1115/GT2022-78244
View Paper titled, Film Cooling Hole Shape Effects on Turbine Blade Heat Transfer – Part I: Computational Comparison to Experiment
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Topics: Film cooling, Heat transfer, Shapes, Turbine blades, Blades, Cooling, Pressure, Simulation, Turbines, Computation
Proceedings Papers

Film Cooling Hole Shape Effects on Turbine Blade Heat Transfer – Part II: Effects of Mass Flow Rate and Unsteadiness

Spencer Sperling, Louis Christensen, Randall Mathison, Hakan Aksoy, Jong Liu, Jeremy Nickol
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A003, June 13–17, 2022
Paper No: GT2022-78245
DOI: https://doi.org/10.1115/GT2022-78245
View Paper titled, Film Cooling Hole Shape Effects on Turbine Blade Heat Transfer – Part II: Effects of Mass Flow Rate and Unsteadiness
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Topics: Film cooling, Flow (Dynamics), Heat transfer, Shapes, Turbine blades, Cooling, Coolants, Pressure, Turbines, Blades
Proceedings Papers

Educational Effectiveness of Brayton Cycle Compare and Solve Interactive Gas Turbine Simulator

Louis Christensen, Randall Mathison
Proc. ASME. GT2021, Volume 4: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage; Education; Electric Power, V004T08A004, June 7–11, 2021
Paper No: GT2021-59622
DOI: https://doi.org/10.1115/GT2021-59622
View Paper titled, Educational Effectiveness of Brayton Cycle Compare and Solve Interactive Gas Turbine Simulator
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Topics: Brayton cycle, Gas turbines, Students, Homework, Cycles, Engines, Aerospace engineering, Design, Energy generation, Engineering teachers
Proceedings Papers

Coupling of Mainstream Velocity Fluctuations With Plenum Fed Film Cooling Jets

Spencer Sperling, Louis Christensen, Richard Celestina, Randall Mathison, Hakan Aksoy, Jong Liu, Jeremy Nickol
Proc. ASME. GT2021, Volume 5A: Heat Transfer — Combustors; Film Cooling, V05AT12A024, June 7–11, 2021
Paper No: GT2021-59825
DOI: https://doi.org/10.1115/GT2021-59825
View Paper titled, Coupling of Mainstream Velocity Fluctuations With Plenum Fed Film Cooling Jets
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Topics: Film cooling, Fluctuations (Physics), Jets, Simulation, Reynolds-averaged Navier–Stokes equations, Design, Modeling, Resonance, Turbulence, Acoustics
Proceedings Papers

Investigating Heat Transfer in a Straight Cooling Passage Using Transient Infrared Temperature Data and URANS Conjugate Heat Transfer Analysis

Louis Christensen, Richard Celestina, Spencer Sperling, Randall Mathison, Hakan Aksoy, Jong Liu, Jeremy Nickol
Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT15A023, June 7–11, 2021
Paper No: GT2021-60381
DOI: https://doi.org/10.1115/GT2021-60381
View Paper titled, Investigating Heat Transfer in a Straight Cooling Passage Using Transient Infrared Temperature Data and URANS Conjugate Heat Transfer Analysis
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Topics: Cooling, Heat transfer, Temperature, Transients (Dynamics), Heat conduction, Turbulence, Computer simulation, Errors, Convection, Engineering simulation
Journal Articles

Infrared Temperature Measurements of the Blade Tip for a Turbine Operating at Corrected Engine Conditions

Louis Christensen, Richard Celestina, Spencer Sperling, Randall Mathison, Hakan Aksoy, Jong Liu
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2021, 143(10): 101005.
Paper No: TURBO-20-1383
DOI: https://doi.org/10.1115/1.4050675
Published Online: May 17, 2021
View Article titled, Infrared Temperature Measurements of the Blade Tip for a Turbine Operating at Corrected Engine Conditions
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Topics: Blades, Cooling, Temperature, Flow (Dynamics), Turbines
Proceedings Papers

Development of New Single and High-Density Heat-Flux Gauges for Unsteady Heat Transfer Measurements for a Rotating Transonic Turbine

Richard Celestina, Spencer Sperling, Louis Christensen, Randall Mathison, Hakan Aksoy, Jong Liu
Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT13A008, September 21–25, 2020
Paper No: GT2020-14527
DOI: https://doi.org/10.1115/GT2020-14527
View Paper titled, Development of New Single and High-Density Heat-Flux Gauges for Unsteady Heat Transfer Measurements for a Rotating Transonic Turbine
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Topics: Density, Gages, Heat flux, Heat transfer, Turbines, Airfoils, Cooling, Flow (Dynamics), High pressure (Physics), Pressure
Proceedings Papers

Infrared Temperature Measurements of the Blade Tip for a Turbine Operating at Corrected Engine Conditions

Louis Christensen, Richard Celestina, Spencer Sperling, Randall Mathison, Hakan Aksoy, Jong Liu
Proc. ASME. GT2020, Volume 7C: Heat Transfer, V07CT13A009, September 21–25, 2020
Paper No: GT2020-14528
DOI: https://doi.org/10.1115/GT2020-14528
View Paper titled, Infrared Temperature Measurements of the Blade Tip for a Turbine Operating at Corrected Engine Conditions
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Topics: Blades, Engines, Temperature measurement, Turbines, Flow (Dynamics), Cooling, Temperature, Airfoils, Design, Filters
Proceedings Papers

Heat Transfer and Pressure Measurements for the Forward Purge Cavity, Inner Endwall, and Rotor Platform of a Cooled Transonic Turbine Stage

Jeremy Nickol, Matthew Tomko, Randall Mathison, Jong S. Liu, Mark Morris, Malak F. Malak
Proc. ASME. GT2018, Volume 5B: Heat Transfer, V05BT15A033, June 11–15, 2018
Paper No: GT2018-76978
DOI: https://doi.org/10.1115/GT2018-76978
View Paper titled, Heat Transfer and Pressure Measurements for the Forward Purge Cavity, Inner Endwall, and Rotor Platform of a Cooled Transonic Turbine Stage
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Topics: Cavities, Heat transfer, Pressure measurement, Rotors, Turbines, Flow (Dynamics), Cooling, Blades, Airfoils, Circuits
Journal Articles

An Investigation of Coolant Within Serpentine Passages of a High-Pressure Axial Gas Turbine Blade

Jeremy Nickol, Randall Mathison, Michael Dunn, Jong Liu, Malak Malak
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. September 2017, 139(9): 091006.
Paper No: TURBO-17-1016
DOI: https://doi.org/10.1115/1.4036109
Published Online: April 11, 2017
View Article titled, An Investigation of Coolant Within Serpentine Passages of a High-Pressure Axial Gas Turbine Blade
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Topics: Blades, Computational fluid dynamics, Coolants, Cooling, Flow (Dynamics), Pressure, Gas turbines, Airfoils, Film cooling, High pressure (Physics)
Proceedings Papers

History of Short-Duration Measurement Programs Related to Gas Turbine Heat Transfer, Aerodynamics, and Aeroperformance at Calspan and OSU

Michael Dunn, Randall Mathison
Proc. ASME. GT2013, Volume 3C: Heat Transfer, V03CT14A013, June 3–7, 2013
Paper No: GT2013-94926
DOI: https://doi.org/10.1115/GT2013-94926
View Paper titled, History of Short-Duration Measurement Programs Related to Gas Turbine Heat Transfer, Aerodynamics, and Aeroperformance at Calspan and OSU
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Topics: Aerodynamics, Gas turbines, Heat transfer, Turbines, Flow (Dynamics), Blades, Cooling, Aviation, Heat flux, Pressure
Journal Articles

History of Short-Duration Measurement Programs Related to Gas Turbine Heat Transfer, Aerodynamics, and Aeroperformance at Calspan and The Ohio State University

Michael Dunn, Randall Mathison
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. April 2014, 136(4): 041004.
Paper No: TURBO-13-1058
DOI: https://doi.org/10.1115/1.4024898
Published Online: September 26, 2013
View Article titled, History of Short-Duration Measurement Programs Related to Gas Turbine Heat Transfer, Aerodynamics, and Aeroperformance at Calspan and The Ohio State University
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Topics: Blades, Pressure, Turbines, Cooling, Flow (Dynamics), Heat flux, Heat transfer
Journal Articles

Aeroperformance Measurements for a Fully Cooled High-Pressure Turbine Stage

Charles Haldeman, Michael Dunn, Randall Mathison, William Troha, Timothy Vander Hoek, Ardeshir Riahi
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. March 2014, 136(3): 031001.
Paper No: TURBO-12-1131
DOI: https://doi.org/10.1115/1.4024777
Published Online: September 26, 2013
View Article titled, Aeroperformance Measurements for a Fully Cooled High-Pressure Turbine Stage
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Topics: Blades, Cooling, Flow (Dynamics), Pressure, Temperature, Turbines, Design, High pressure (Physics), Coolants, Damage
Proceedings Papers

Aeroperformance Measurements for a Fully Cooled High-Pressure Turbine Stage

Charles Haldeman, Michael Dunn, Randall Mathison, William Troha, Timothy Vander Hoek, Ardeshir Riahi
Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 765-776, June 11–15, 2012
Paper No: GT2012-69941
DOI: https://doi.org/10.1115/GT2012-69941
View Paper titled, Aeroperformance Measurements for a Fully Cooled High-Pressure Turbine Stage
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Topics: High pressure (Physics), Turbines, Temperature, Cooling, Blades, Pressure, Clearances (Engineering), Coolants, Engines, Flow (Dynamics)