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Journal Articles

Loss Analysis in Radial Inflow Turbines for Supercritical CO 2 Mixtures

Omar Aqel, Martin White, Abdulnaser Sayma
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2024, 146(5): 051003.
Paper No: TURBO-23-1236
https://doi.org/10.1115/1.4064193
Published Online: January 16, 2024
View Article titled, Loss Analysis in Radial Inflow Turbines for Supercritical CO 2 Mixtures
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Topics: Carbon dioxide, Design, Fluids, Turbines, Pressure, Inflow, Clearances (Engineering)
Journal Articles

Impact of the Purge Flow Density Ratio on the Rim Sealing Effectiveness in Hot Gas Ingestion Measurements

L. Orsini, A. Picchi, B. Facchini, A. Bonini, L. Innocenti
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. February 2024, 146(2): 021002.
Paper No: TURBO-23-1188
https://doi.org/10.1115/1.4063755
Published Online: October 31, 2023
View Article titled, Impact of the Purge Flow Density Ratio on the Rim Sealing Effectiveness in Hot Gas Ingestion Measurements
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Topics: Carbon dioxide, Cavities, Density, Flow (Dynamics), Pressure, Rotors, Sealing (Process), Stators, Disks, Annulus
Journal Articles

Scaling Overall Effectiveness in Low-Temperature Experiments

Carol E. Bryant, James L. Rutledge
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2023, 145(12): 121004.
Paper No: TURBO-23-1146
https://doi.org/10.1115/1.4063412
Published Online: October 19, 2023
View Article titled, Scaling Overall Effectiveness in Low-Temperature Experiments
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Topics: Carbon dioxide, Coolants, Engines, Temperature, Low temperature, Film cooling, Cooling, Fluids
Journal Articles

Scaling Flat Plate Overall Effectiveness Measurements

Luke J. McNamara, Jacob P. Fischer, Marta E. Kernan, James L. Rutledge
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2023, 145(3): 031003.
Paper No: TURBO-22-1212
https://doi.org/10.1115/1.4055614
Published Online: October 17, 2022
View Article titled, Scaling Flat Plate Overall Effectiveness Measurements
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Topics: Coolants, Flat plates, Gases, Thermal conductivity, Cooling, Temperature, Carbon dioxide, Reynolds number, Engines, Specific heat
Journal Articles

The Effects of Specific Heat and Viscosity on Film Cooling Behavior

Connor J. Wiese, James L. Rutledge
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2021, 143(4): 041008.
Paper No: TURBO-20-1221
https://doi.org/10.1115/1.4049785
Published Online: March 24, 2021
View Article titled, The Effects of Specific Heat and Viscosity on Film Cooling Behavior
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Topics: Carbon dioxide, Coolants, Film cooling, Nitrogen, Viscosity, Cooling
Journal Articles

Analysis of the Heat Transfer Within Combustor Liners Using a Combined Monte Carlo and Two-Flux Method

Andressa L. Johnson, Xinyu Zhao
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2021, 143(3): 031006.
Paper No: TURBO-20-1238
https://doi.org/10.1115/1.4049913
Published Online: March 1, 2021
View Article titled, Analysis of the Heat Transfer Within Combustor Liners Using a Combined Monte Carlo and Two-Flux Method
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Topics: Combustion chambers, Flames, Heat transfer, Radiation (Physics), Temperature, Thermal barrier coatings, Metals, Carbon dioxide, Gas turbines
Journal Articles

Scaling Flat-Plate, Low-Temperature Adiabatic Effectiveness Results Using the Advective Capacity Ratio

Jacob P. Fischer, Luke J. McNamara, James L. Rutledge, Marc D. Polanka
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2020, 142(8): 081010.
Paper No: TURBO-19-1124
https://doi.org/10.1115/1.4046544
Published Online: July 29, 2020
View Article titled, Scaling Flat-Plate, Low-Temperature Adiabatic Effectiveness Results Using the Advective Capacity Ratio
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Topics: Coolants, Density, Flat plates, Flow (Dynamics), Gases, Low temperature, Turbulence, Momentum, Specific heat, Film cooling
Journal Articles

Evaluating the Effect of Vane Trailing Edge Flow on Turbine Rim Sealing

Iván Monge-Concepción, Reid A. Berdanier, Michael D. Barringer, Karen A. Thole, Christopher Robak
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2020, 142(8): 081001.
Paper No: TURBO-20-1023
https://doi.org/10.1115/1.4047611
Published Online: July 9, 2020
View Article titled, Evaluating the Effect of Vane Trailing Edge Flow on Turbine Rim Sealing
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Topics: Carbon dioxide, Cavities, Cooling, Flow (Dynamics), Turbines
Journal Articles

A Parametric Investigation of Vane Showerhead Film Cooling by Pressure-Sensitive Paint Technique

H. Abdeh, G. Barigozzi, S. Ravelli, S. Rouina
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2020, 142(3): 031007.
Paper No: TURBO-19-1270
https://doi.org/10.1115/1.4045875
Published Online: February 21, 2020
View Article titled, A Parametric Investigation of Vane Showerhead Film Cooling by Pressure-Sensitive Paint Technique
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Topics: Coolants, Density, Film cooling, Pressure, Cooling, Wind tunnels, Turbulence, Cascades (Fluid dynamics), Flow (Dynamics), Cooling systems
Journal Articles

Influence of Scaling Parameters and Gas Properties on Overall Effectiveness on a Leading Edge Showerhead

Connor J. Wiese, Carol E. Bryant, James L. Rutledge, Marc D. Polanka
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. November 2018, 140(11): 111007.
Paper No: TURBO-18-1204
https://doi.org/10.1115/1.4041292
Published Online: October 24, 2018
View Article titled, Influence of Scaling Parameters and Gas Properties on Overall Effectiveness on a Leading Edge Showerhead
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Topics: Carbon dioxide, Coolants, Cooling, Flow (Dynamics), Temperature
Journal Articles

Experimental Evaluation of Thermal and Mass Transfer Techniques to Measure Adiabatic Effectiveness With Various Coolant to Freestream Property Ratios

Connor J. Wiese, James L. Rutledge, Marc D. Polanka
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. February 2018, 140(2): 021001.
Paper No: TURBO-17-1118
https://doi.org/10.1115/1.4038177
Published Online: November 7, 2017
View Article titled, Experimental Evaluation of Thermal and Mass Transfer Techniques to Measure Adiabatic Effectiveness With Various Coolant to Freestream Property Ratios
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Topics: Carbon dioxide, Coolants, Cooling, Flow (Dynamics), Nitrogen, Mass transfer, Temperature, Heat transfer, Film cooling
Journal Articles

Computational Fluid Dynamics Evaluations of Film Cooling Flow Scaling Between Engine and Experimental Conditions

James L. Rutledge, Marc D. Polanka, Nathan J. Greiner
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. February 2017, 139(2): 021004.
Paper No: TURBO-16-1186
https://doi.org/10.1115/1.4034557
Published Online: September 27, 2016
View Article titled, Computational Fluid Dynamics Evaluations of Film Cooling Flow Scaling Between Engine and Experimental Conditions
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Topics: Carbon dioxide, Coolants, Density, Engines, Flow (Dynamics), Simulation, Temperature, Film cooling, Computational fluid dynamics
Journal Articles

A Study of Trailing-Edge Losses in Organic Rankine Cycle Turbines

Francisco J. Durá Galiana, Andrew P.S. Wheeler, Jonathan Ong
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. December 2016, 138(12): 121003.
Paper No: TURBO-16-1080
https://doi.org/10.1115/1.4033473
Published Online: June 1, 2016
View Article titled, A Study of Trailing-Edge Losses in Organic Rankine Cycle Turbines
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Topics: Engineering simulation, Flow (Dynamics), Mach number, Organic Rankine cycle, Pressure, Shock (Mechanics), Simulation, Turbines, Wakes, Computational fluid dynamics
Journal Articles

An Investigation of Real Gas Effects in Supercritical CO 2 Centrifugal Compressors

Nikola D. Baltadjiev, Claudio Lettieri, Zoltán S. Spakovszky
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. September 2015, 137(9): 091003.
Paper No: TURBO-14-1319
https://doi.org/10.1115/1.4029616
Published Online: September 1, 2015
View Article titled, An Investigation of Real Gas Effects in Supercritical CO 2 Centrifugal Compressors
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Topics: Carbon dioxide, Compressors, Condensation, Flow (Dynamics), Fluids, Pressure, Supercritical carbon dioxide, Impellers, Computational fluid dynamics
Journal Articles

Measurements of Hub Flow Interaction on Film Cooled Nozzle Guide Vane in Transonic Annular Cascade

Lamyaa A. El-Gabry, Ranjan Saha, Jens Fridh, Torsten Fransson
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. August 2015, 137(8): 081004.
Paper No: TURBO-14-1287
https://doi.org/10.1115/1.4029242
Published Online: August 1, 2015
View Article titled, Measurements of Hub Flow Interaction on Film Cooled Nozzle Guide Vane in Transonic Annular Cascade
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Topics: Carbon dioxide, Coolants, Flow (Dynamics), Vorticity, Cascades (Fluid dynamics), Nozzle guide vanes, Vortices, Cooling
Journal Articles

Computational Fluid Dynamics Evaluations of Unconventional Film Cooling Scaling Parameters on a Simulated Turbine Blade Leading Edge

James L. Rutledge, Marc D. Polanka
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. October 2014, 136(10): 101006.
Paper No: TURBO-14-1018
https://doi.org/10.1115/1.4028001
Published Online: July 29, 2014
View Article titled, Computational Fluid Dynamics Evaluations of Unconventional Film Cooling Scaling Parameters on a Simulated Turbine Blade Leading Edge
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Topics: Carbon dioxide, Coolants, Film cooling, Computational fluid dynamics, Temperature, Flow (Dynamics), Heat transfer coefficients
Journal Articles

Preparing for the Future: Reducing Gas Turbine Environmental Impact—IGTI Scholar Lecture

Nicholas A. Cumpsty
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2010, 132(4): 041017.
https://doi.org/10.1115/1.4001221
Published Online: May 11, 2010
View Article titled, Preparing for the Future: Reducing Gas Turbine Environmental Impact—IGTI Scholar Lecture
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Topics: Aircraft, Design, Engines, Fuels, Gas turbines, Pressure, Temperature, Thrust, Turbines, Flow (Dynamics)
Journal Articles

Heat Transfer Coefficients of Film Cooling on a Rotating Turbine Blade Model—Part I: Effect of Blowing Ratio

Zhi Tao, Zhenming Zhao, Shuiting Ding, Guoqiang Xu, Bin Yang, Hongwei Wu
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2009, 131(4): 041005.
https://doi.org/10.1115/1.3068329
Published Online: July 1, 2009
View Article titled, Heat Transfer Coefficients of Film Cooling on a Rotating Turbine Blade Model—Part I: Effect of Blowing Ratio
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Topics: Blades, Coolants, Film cooling, Heat transfer coefficients, Carbon dioxide, Density, Pressure, Rotation
Journal Articles

Continuous Monitoring of Binary Gas Mixture Concentration With Application to Turbine Blade Cooling Experiments

Tomas Strilka, Graduate Student, Miklos Sajben, Professor. Mem. ASME, Peter Nagy, Associate Professor. Mem. ASME
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2000, 122(3): 570–578.
https://doi.org/10.1115/1.1302285
Published Online: February 1, 1999
View Article titled, Continuous Monitoring of Binary Gas Mixture Concentration With Application to Turbine Blade Cooling Experiments
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Topics: Calibration, Cooling, Errors, Flow (Dynamics), Flowmeters, Gases, Pressure, Speed of sound, Temperature, Transducers
Journal Articles

Detailed Film Cooling Measurements on a Cylindrical Leading Edge Model: Effect of Free-Stream Turbulence and Coolant Density

S. V. Ekkad, J. C. Han, H. Du
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 1998, 120(4): 799–807.
https://doi.org/10.1115/1.2841792
Published Online: October 1, 1998
View Article titled, Detailed Film Cooling Measurements on a Cylindrical Leading Edge Model: Effect of Free-Stream Turbulence and Coolant Density
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Topics: Coolants, Density, Film cooling, Turbulence, Carbon dioxide, Cylinders, Heat transfer coefficients, Liquid crystals, Transients (Dynamics), Reynolds number