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Randall M. Mathison
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Proceedings Papers

NASA HECC Geometry and Performance Review Part 3: A Numerical and Experimental Investigation of Tip Clearance Effects on the Vaneless Diffuser Configuration

Herbert M. Harrison, Tammy Nguyen-Huynh, Randall M. Mathison
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT35A001, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-121641
https://doi.org/10.1115/GT2024-121641
View Paper titled, NASA HECC Geometry and Performance Review Part 3: A Numerical and Experimental Investigation of Tip Clearance Effects on the Vaneless Diffuser Configuration
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Topics: Clearances (Engineering), Geometry, NASA, Performance evaluation, Vaneless diffusers
Proceedings Papers

Time-Accurate Evaluation of Film Cooling Jet Characteristics for Plenum and Crossflow Coolant Supplies

Spencer J. Sperling, Randall M. Mathison
Proc. ASME. GT2019, Volume 5B: Heat Transfer, V05BT19A022, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91765
https://doi.org/10.1115/GT2019-91765
View Paper titled, Time-Accurate Evaluation of Film Cooling Jet Characteristics for Plenum and Crossflow Coolant Supplies
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Topics: Coolants, Film cooling, Cooling, Turbulence, Momentum, Jets, Separation (Technology), Flat plates, Flow (Dynamics), Fluctuations (Physics)
Proceedings Papers

Comparison of 3D Unsteady Transient Conjugate Heat Transfer Analysis on a High Pressure Cooled Turbine Stage With Experimental Data

Jong-Shang Liu, Mark C. Morris, Malak F. Malak, Randall M. Mathison, Michael G. Dunn
Proc. ASME. GT2017, Volume 5A: Heat Transfer, V05AT10A006, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64596
https://doi.org/10.1115/GT2017-64596
View Paper titled, Comparison of 3D Unsteady Transient Conjugate Heat Transfer Analysis on a High Pressure Cooled Turbine Stage With Experimental Data
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Topics: Heat transfer, High pressure (Physics), Transients (Dynamics), Turbines, Flow (Dynamics), Cooling, Temperature, Airfoils, Computational fluid dynamics, Engines
Journal Articles

Unsteady Heat Transfer and Pressure Measurements on the Airfoils of a Rotating Transonic Turbine With Multiple Cooling Configurations

Jeremy B. Nickol, Randall M. Mathison, Michael G. Dunn, Jong S. Liu, Malak F. Malak
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2017, 139(9): 092601.
Paper No: GTP-16-1535
https://doi.org/10.1115/1.4036059
Published Online: April 11, 2017
View Article titled, Unsteady Heat Transfer and Pressure Measurements on the Airfoils of a Rotating Transonic Turbine With Multiple Cooling Configurations
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Topics: Airfoils, Blades, Cooling, Gages, Heat transfer, Pressure, Shapes, Turbines, Flow (Dynamics), Computational fluid dynamics
Proceedings Papers

Unsteady Heat Transfer and Pressure Measurements on the Airfoils of a Rotating Transonic Turbine With Multiple Cooling Configurations

Jeremy B. Nickol, Randall M. Mathison, Michael G. Dunn, Jong S. Liu, Malak F. Malak
Proc. ASME. GT2016, Volume 5A: Heat Transfer, V05AT13A027, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57768
https://doi.org/10.1115/GT2016-57768
View Paper titled, Unsteady Heat Transfer and Pressure Measurements on the Airfoils of a Rotating Transonic Turbine With Multiple Cooling Configurations
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Topics: Airfoils, Cooling, Heat transfer, Pressure measurement, Turbines, Blades, Gages, Heat flux, Film cooling, Flow (Dynamics)
Proceedings Papers

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

Jeremy B. Nickol, Randall M. Mathison, Michael G. Dunn, Jong S. Liu, Malak F. Malak
Proc. ASME. GT2016, Volume 5A: Heat Transfer, V05AT13A028, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57776
https://doi.org/10.1115/GT2016-57776
View Paper titled, An Investigation of Coolant Within Serpentine Passages of a High-Pressure Axial Gas Turbine Blade
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Topics: Blades, Coolants, Gas turbines, High pressure (Physics), Film cooling, Airfoils, Cooling, Pressure, Design, Flow (Dynamics)
Journal Articles

Time-Resolved Heat Transfer and Surface Pressure Measurements for a Fully Cooled Transonic Turbine Stage

Jeremy B. Nickol, Randall M. Mathison, Malak F. Malak, Rajiv Rana, Jong S. Liu
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. September 2015, 137(9): 091009.
Paper No: TURBO-14-1318
https://doi.org/10.1115/1.4029950
Published Online: September 1, 2015
View Article titled, Time-Resolved Heat Transfer and Surface Pressure Measurements for a Fully Cooled Transonic Turbine Stage
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Topics: Blades, Cooling, Flow (Dynamics), Heat flux, Heat transfer, Pressure, Suction, Turbines, Temperature, Gages
Journal Articles

Wireless Telemetric Data Acquisition and Real-Time Control for a High Measurement-Density Internal Heat Transfer Experiment

Alexander J. Habib, Jeffery L. Barton, Randall M. Mathison, Michael G. Dunn
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. April 2015, 137(4): 041003.
Paper No: TURBO-14-1176
https://doi.org/10.1115/1.4028329
Published Online: October 28, 2014
View Article titled, Wireless Telemetric Data Acquisition and Real-Time Control for a High Measurement-Density Internal Heat Transfer Experiment
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Topics: Computer software, Control systems, Copper, Data acquisition, Density, Hardware, Heat transfer, Signals, Storage, Temperature
Proceedings Papers

Wireless Telemetric Data Acquisition and Real-Time Control for a High Measurement-Density Internal Heat Transfer Experiment

Alexander J. Habib, Jeffery L. Barton, Randall M. Mathison, Michael G. Dunn
Proc. ASME. GT2014, Volume 5A: Heat Transfer, V05AT12A036, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-26408
https://doi.org/10.1115/GT2014-26408
View Paper titled, Wireless Telemetric Data Acquisition and Real-Time Control for a High Measurement-Density Internal Heat Transfer Experiment
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Topics: Data acquisition, Density, Heat transfer, Real-time control, Signals, Control systems, Feedback, Temperature, Batteries, Construction
Proceedings Papers

Time-Resolved Heat Transfer and Surface Pressure Measurements for a Fully-Cooled Transonic Turbine Stage

Jeremy B. Nickol, Randall M. Mathison, Malak F. Malak, Rajiv Rana, Jong S. Liu
Proc. ASME. GT2014, Volume 5B: Heat Transfer, V05BT14A013, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-26407
https://doi.org/10.1115/GT2014-26407
View Paper titled, Time-Resolved Heat Transfer and Surface Pressure Measurements for a Fully-Cooled Transonic Turbine Stage
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Topics: Heat transfer, Pressure measurement, Turbines, Flow (Dynamics), Blades, Heat flux, Pressure, Cooling, Suction, Aerodynamics
Proceedings Papers

Heat-Flux Measurements for a Realistic Cooling Hole Pattern With Multiple Flow Conditions

Jeremy B. Nickol, Randall M. Mathison, Michael G. Dunn
Proc. ASME. GT2013, Volume 3B: Heat Transfer, V03BT13A036, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-94925
https://doi.org/10.1115/GT2013-94925
View Paper titled, Heat-Flux Measurements for a Realistic Cooling Hole Pattern With Multiple Flow Conditions
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Topics: Cooling, Flow (Dynamics), Heat flux, Gages, Heat transfer, Adiabatic cooling, Boundary-value problems, Design, Flat plates, High pressure (Physics)
Proceedings Papers

Heat Transfer for High Aspect Ratio Rectangular Channels in a Stationary Serpentine Passage With Turbulated and Smooth Surfaces

Matthew A. Smith, Randall M. Mathison, Michael G. Dunn
Proc. ASME. GT2013, Volume 3A: Heat Transfer, V03AT12A031, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-94924
https://doi.org/10.1115/GT2013-94924
View Paper titled, Heat Transfer for High Aspect Ratio Rectangular Channels in a Stationary Serpentine Passage With Turbulated and Smooth Surfaces
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Topics: Heat transfer, Reynolds number, Flow (Dynamics), Cooling, Engines
Journal Articles

Heat Transfer for High Aspect Ratio Rectangular Channels in a Stationary Serpentine Passage With Turbulated and Smooth Surfaces

Matthew A. Smith, Randall M. Mathison, Michael G. Dunn
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2014, 136(5): 051002.
Paper No: TURBO-13-1057
https://doi.org/10.1115/1.4025307
Published Online: September 27, 2013
View Article titled, Heat Transfer for High Aspect Ratio Rectangular Channels in a Stationary Serpentine Passage With Turbulated and Smooth Surfaces
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Topics: Flow (Dynamics), Heat transfer, Reynolds number, Temperature
Journal Articles

Heat-Flux Measurements for a Realistic Cooling Hole Pattern With Multiple Flow Conditions

Jeremy B. Nickol, Randall M. Mathison, Michael G. Dunn
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2014, 136(3): 031010.
Paper No: TURBO-13-1059
https://doi.org/10.1115/1.4024692
Published Online: September 26, 2013
View Article titled, Heat-Flux Measurements for a Realistic Cooling Hole Pattern With Multiple Flow Conditions
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Topics: Cooling, Flow (Dynamics), Heat flux, Temperature, Gages, Coolants, Flat plates, Pressure
Journal Articles

Comparison of Harmonic and Time Marching Unsteady Computational Fluid Dynamics Solutions With Measurements for a Single-Stage High-Pressure Turbine

Brian R. Green, Randall M. Mathison, Michael G. Dunn
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. January 2014, 136(1): 011005.
Paper No: TURBO-12-1075
https://doi.org/10.1115/1.4024775
Published Online: September 20, 2013
View Article titled, Comparison of Harmonic and Time Marching Unsteady Computational Fluid Dynamics Solutions With Measurements for a Single-Stage High-Pressure Turbine
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Topics: Blades, High pressure (Physics), Pressure, Turbines, Rotors, Flow (Dynamics), Computational fluid dynamics
Journal Articles

Time-Averaged and Time-Accurate Aerodynamic Effects of Forward Rotor Cavity Purge Flow for a High-Pressure Turbine—Part I: Analytical and Experimental Comparisons

Brian R. Green, Randall M. Mathison, Michael G. Dunn
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. January 2014, 136(1): 011004.
Paper No: TURBO-12-1074
https://doi.org/10.1115/1.4024774
Published Online: September 20, 2013
View Article titled, Time-Averaged and Time-Accurate Aerodynamic Effects of Forward Rotor Cavity Purge Flow for a High-Pressure Turbine—Part I: Analytical and Experimental Comparisons
Open the PDF for Time-Averaged and Time-Accurate Aerodynamic Effects of Forward Rotor Cavity Purge Flow for a High-Pressure Turbine—Part I: Analytical and Experimental Comparisons in another window
Topics: Blades, Cavities, Flow (Dynamics), High pressure (Physics), Pressure, Rotors, Temperature, Turbines, Computational fluid dynamics
Journal Articles

Time-Averaged and Time-Accurate Aerodynamic Effects of Rotor Purge Flow for a Modern, One and One-Half Stage High-Pressure Turbine—Part II: Analytical Flow Field Analysis

Brian R. Green, Randall M. Mathison, Michael G. Dunn
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. January 2014, 136(1): 011009.
Paper No: TURBO-12-1130
https://doi.org/10.1115/1.4024776
Published Online: September 20, 2013
View Article titled, Time-Averaged and Time-Accurate Aerodynamic Effects of Rotor Purge Flow for a Modern, One and One-Half Stage High-Pressure Turbine—Part II: Analytical Flow Field Analysis
Open the PDF for Time-Averaged and Time-Accurate Aerodynamic Effects of Rotor Purge Flow for a Modern, One and One-Half Stage High-Pressure Turbine—Part II: Analytical Flow Field Analysis in another window
Topics: Cavities, Flow (Dynamics), High pressure (Physics), Pressure, Rotors, Blades
Proceedings Papers

Comparison of Harmonic and Time-Marching Unsteady CFD Solutions With Measurements for a Single Stage High-Pressure Turbine

Brian R. Green, Randall M. Mathison, Michael G. Dunn
Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 721-735, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69934
https://doi.org/10.1115/GT2012-69934
View Paper titled, Comparison of Harmonic and Time-Marching Unsteady CFD Solutions With Measurements for a Single Stage High-Pressure Turbine
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Topics: Computational fluid dynamics, High pressure (Physics), Turbines, Flow (Dynamics), Blades, Design, Pressure, Rotating blades, Simulation, Aerodynamics
Proceedings Papers

Time-Averaged and Time-Accurate Aerodynamic Effects of Forward Rotor Cavity Purge Flow for a High-Pressure Turbine: Part I—Analytical and Experimental Comparisons

Brian R. Green, Randall M. Mathison, Michael G. Dunn
Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 737-750, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69937
https://doi.org/10.1115/GT2012-69937
View Paper titled, Time-Averaged and Time-Accurate Aerodynamic Effects of Forward Rotor Cavity Purge Flow for a High-Pressure Turbine: Part I—Analytical and Experimental Comparisons
Open the PDF for Time-Averaged and Time-Accurate Aerodynamic Effects of Forward Rotor Cavity Purge Flow for a High-Pressure Turbine: Part I—Analytical and Experimental Comparisons in another window
Topics: Cavities, Flow (Dynamics), High pressure (Physics), Rotors, Turbine components, Turbines, Design, Blades, Disks, Hardware
Proceedings Papers

Time-Averaged and Time-Accurate Aerodynamic Effects of Rotor Purge Flow for a Modern, One and One-Half Stage High-Pressure Turbine: Part II—Analytical Flow Field Analysis

Brian R. Green, Randall M. Mathison, Michael G. Dunn
Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 751-764, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69939
https://doi.org/10.1115/GT2012-69939
View Paper titled, Time-Averaged and Time-Accurate Aerodynamic Effects of Rotor Purge Flow for a Modern, One and One-Half Stage High-Pressure Turbine: Part II—Analytical Flow Field Analysis
Open the PDF for Time-Averaged and Time-Accurate Aerodynamic Effects of Rotor Purge Flow for a Modern, One and One-Half Stage High-Pressure Turbine: Part II—Analytical Flow Field Analysis in another window
Topics: Flow (Dynamics), High pressure (Physics), Rotors, Turbine components, Cavities, Turbines, Pressure, Blades, Design, Computational fluid dynamics