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Journal Articles

Internal Heat Transfer Measurement on Metal-Based Additively Manufactured Channels Using a Transient Technique

Patrick Lüscher, Marin Deflorin, Manuel Voggesser, Peter Stuber, Vincent Galoul, Minseok Ko
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. September 2023, 145(9): 091012.
Paper No: TURBO-23-1009
https://doi.org/10.1115/1.4062807
Published Online: July 27, 2023
View Article titled, Internal Heat Transfer Measurement on Metal-Based Additively Manufactured Channels Using a Transient Technique
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Topics: Additive manufacturing, Friction, Heat transfer, Metals, Reynolds number, Pressure, Transients (Dynamics), Flow (Dynamics), Temperature, Surface roughness
Journal Articles

Heat Transfer and Pressure Loss of Additively Manufactured Internal Cooling Channels With Various Shapes

Alexander J. Wildgoose, Karen A. Thole
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2023, 145(7): 071011.
Paper No: TURBO-22-1255
https://doi.org/10.1115/1.4056775
Published Online: February 10, 2023
View Article titled, Heat Transfer and Pressure Loss of Additively Manufactured Internal Cooling Channels With Various Shapes
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Topics: Friction, Heat transfer, Pressure, Shapes, Surface roughness, Reynolds number, Diamonds
Journal Articles

On the Probabilistic Endurance Prediction Approach for Turbomachinery Blades and Vanes

Davendu Y. Kulkarni
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2023, 145(6): 061011.
Paper No: TURBO-21-1276
https://doi.org/10.1115/1.4056511
Published Online: January 9, 2023
View Article titled, On the Probabilistic Endurance Prediction Approach for Turbomachinery Blades and Vanes
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Topics: Airfoils, Blades, Compressors, Damping, Design, Friction, High cycle fatigue, Simulation, Stress, Turbomachinery
Journal Articles

Impacts of Pin Fin Shape and Spacing on Heat Transfer and Pressure Losses

Thomas M. Corbett, Karen A. Thole, Sudhakar Bollapragada
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051014.
Paper No: TURBO-22-1200
https://doi.org/10.1115/1.4056092
Published Online: December 6, 2022
View Article titled, Impacts of Pin Fin Shape and Spacing on Heat Transfer and Pressure Losses
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Topics: Friction, Heat transfer, Pins (Engineering), Pressure, Shapes, Surface roughness, Flow (Dynamics), Diamonds, Additive manufacturing
Journal Articles

Amplitude and Wavelength Effects for Wavy Channels

Thomas M. Corbett, Karen A. Thole, Sudhakar Bollapragada
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2023, 145(3): 031011.
Paper No: TURBO-22-1199
https://doi.org/10.1115/1.4055612
Published Online: October 20, 2022
View Article titled, Amplitude and Wavelength Effects for Wavy Channels
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Topics: Flow (Dynamics), Friction, Heat transfer, Wavelength, Reynolds number, Computational fluid dynamics, Pressure, Surface roughness
Journal Articles

Thermal Performance of Double-Sided, Partial Height Strip Fin Arrays in a High Aspect Ratio, Rectangular Channel

Nathaniel J. Tracy, Lesley M. Wright, Je-Chin Han
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. November 2022, 144(11): 111006.
Paper No: TURBO-21-1234
https://doi.org/10.1115/1.4054544
Published Online: July 21, 2022
View Article titled, Thermal Performance of Double-Sided, Partial Height Strip Fin Arrays in a High Aspect Ratio, Rectangular Channel
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Topics: Fins, Flow (Dynamics), Friction, Heat transfer, Reynolds number, Strips
Journal Articles

Calibration of a Computational Fluid Dynamics Methodology for the Simulation of Roughness Effects on Friction and Heat Transfer in Additive Manufactured Components

Lorenzo Mazzei, Riccardo Da Soghe, Cosimo Bianchini
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. August 2022, 144(8): 081002.
Paper No: TURBO-21-1242
https://doi.org/10.1115/1.4053493
Published Online: March 3, 2022
View Article titled, Calibration of a Computational Fluid Dynamics Methodology for the Simulation of Roughness Effects on Friction and Heat Transfer in Additive Manufactured Components
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Topics: Computational fluid dynamics, Friction, Heat transfer, Surface roughness, Calibration, Additive manufacturing, Simulation
Journal Articles

Cooling Performance of Additively Manufactured Pin Fins in Stacked Microchannels for the Inside-Out Ceramic Turbine Shroud-Cooling Ring

Patrick K. Dubois, Alexandre Landry-Blais, Rym Gazzah, Sani Sivić, Vladimir Brailovski, Mathieu Picard
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2022, 144(7): 071004.
Paper No: TURBO-21-1219
https://doi.org/10.1115/1.4053232
Published Online: February 24, 2022
View Article titled, Cooling Performance of Additively Manufactured Pin Fins in Stacked Microchannels for the Inside-Out Ceramic Turbine Shroud-Cooling Ring
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Topics: Additive manufacturing, Cooling, Design, Fins, Flow (Dynamics), Friction, Heat transfer, Turbines, Ceramics, Pins (Engineering)
Journal Articles

Efficiency Scaling: Influence of Reynolds and Mach Numbers on Fan Performance

Peter F. Pelz, Sebastian Saul, Johannes Brötz
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2022, 144(6): 061001.
Paper No: TURBO-20-1106
https://doi.org/10.1115/1.4053172
Published Online: January 28, 2022
View Article titled, Efficiency Scaling: Influence of Reynolds and Mach Numbers on Fan Performance
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Topics: Fans, Flow (Dynamics), Friction, Mach number, Pressure, Reynolds number, Machinery, Impellers, Surface roughness
Journal Articles

Optimization of Rib Shape and Inclination in a Square Duct With Response Surface Methodology

Yigang Luan, Lanyi Yan, Yue Yin, Hao Fu
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2022, 144(5): 051007.
Paper No: TURBO-21-1066
https://doi.org/10.1115/1.4052988
Published Online: January 13, 2022
View Article titled, Optimization of Rib Shape and Inclination in a Square Duct With Response Surface Methodology
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Topics: Flow (Dynamics), Friction, Heat transfer, Optimization, Response surface methodology, Reynolds number, Shapes, Ducts, Cooling, Computational fluid dynamics
Journal Articles

Convection in Scaled Turbine Internal Cooling Passages With Additive Manufacturing Roughness

Gabriel J. Stafford, Stephen T. McClain, David R. Hanson, Robert F. Kunz, Karen A. Thole
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2022, 144(4): 041008.
Paper No: TURBO-21-1182
https://doi.org/10.1115/1.4052524
Published Online: November 10, 2021
View Article titled, Convection in Scaled Turbine Internal Cooling Passages With Additive Manufacturing Roughness
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Topics: Convection, Friction, Heat transfer, Surface roughness, Aluminum, Additive manufacturing, Cooling
Journal Articles

Impact of Ceramic Matrix Composite Topology on Friction Factor and Heat Transfer

Trevor M. Cory, Ryan D. Edelson, Karen A. Thole, Tyler Vincent, San Quach, Dominic Mongillo
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2022, 144(3): 031003.
Paper No: TURBO-21-1164
https://doi.org/10.1115/1.4052355
Published Online: October 1, 2021
View Article titled, Impact of Ceramic Matrix Composite Topology on Friction Factor and Heat Transfer
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Topics: Ceramic matrix composites, Computational fluid dynamics, Friction, Heat transfer, Reynolds number, Flow (Dynamics), Topology, Temperature, Pressure, Additive manufacturing
Journal Articles

Investigating Gas Turbine Internal Cooling Using Supercritical CO 2 at Higher Reynolds Numbers for Direct Fired Cycle Applications

Matthew Searle, Arnab Roy, James Black, Douglas Straub, Sridharan Ramesh
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2022, 144(1): 011007.
Paper No: TURBO-21-1148
https://doi.org/10.1115/1.4052138
Published Online: September 7, 2021
View Article titled, Investigating Gas Turbine Internal Cooling Using Supercritical CO 2 at Higher Reynolds Numbers for Direct Fired Cycle Applications
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Topics: Cooling, Flow (Dynamics), Friction, Gas turbines, Heat transfer, Reynolds number, Surface roughness, Computational fluid dynamics, Supercritical carbon dioxide, Uncertainty
Journal Articles

Flow in a Simulated Turbine Blade Cooling Channel With Spatially Varying Roughness Caused by Additive Manufacturing Orientation

Stephen T. McClain, David R. Hanson, Emily Cinnamon, Jacob C. Snyder, Robert F. Kunz, Karen A. Thole
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2021, 143(7): 071013.
Paper No: TURBO-20-1292
https://doi.org/10.1115/1.4050389
Published Online: April 19, 2021
View Article titled, Flow in a Simulated Turbine Blade Cooling Channel With Spatially Varying Roughness Caused by Additive Manufacturing Orientation
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Topics: Surface roughness, Flow (Dynamics), Friction
Journal Articles

Impact of Additive Manufacturing on Internal Cooling Channels With Varying Diameters and Build Directions

Alexander J. Wildgoose, Karen A. Thole, Paul Sanders, Lieke Wang
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2021, 143(7): 071003.
Paper No: TURBO-20-1283
https://doi.org/10.1115/1.4050336
Published Online: April 8, 2021
View Article titled, Impact of Additive Manufacturing on Internal Cooling Channels With Varying Diameters and Build Directions
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Topics: Additive manufacturing, Cooling, Design, Friction, Heat transfer, Pressure, Shapes, Surface roughness, Reynolds number
Journal Articles

Effects of Attack Angle and Relative Thickness of Novel Wing-Shaped Turbulators on Turbulent Hydrothermal Performance in a Two-Pass Square Channel

Tong-Miin Liou, Chieh-Chu Chen, Chun-Sheng Wang
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2021, 143(4): 041003.
Paper No: TURBO-20-1225
https://doi.org/10.1115/1.4049614
Published Online: March 22, 2021
View Article titled, Effects of Attack Angle and Relative Thickness of Novel Wing-Shaped Turbulators on Turbulent Hydrothermal Performance in a Two-Pass Square Channel
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Topics: Flow (Dynamics), Heat transfer, Turbulence, Wings, Friction, Pressure drop, Thermography
Journal Articles

Tailoring Surface Roughness Using Additive Manufacturing to Improve Internal Cooling

Jacob C. Snyder, Karen A. Thole
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2020, 142(7): 071004.
Paper No: TURBO-19-1058
https://doi.org/10.1115/1.4047380
Published Online: June 30, 2020
View Article titled, Tailoring Surface Roughness Using Additive Manufacturing to Improve Internal Cooling
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Topics: Cooling, Friction, Heat transfer, Surface roughness, Additive manufacturing, Geometry
Journal Articles

Multipass Serpentine Cooling Designs for Negating Coriolis Force Effect on Heat Transfer: 45-deg Angled Rib Turbulated Channels

Prashant Singh, Yongbin Ji, Srinath V. Ekkad
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. July 2019, 141(7): 071003.
Paper No: TURBO-18-1269
https://doi.org/10.1115/1.4042648
Published Online: February 15, 2019
View Article titled, Multipass Serpentine Cooling Designs for Negating Coriolis Force Effect on Heat Transfer: 45-deg Angled Rib Turbulated Channels
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Topics: Heat transfer, Reynolds number, Cooling, Liquid crystals, Heat transfer coefficients, Coriolis force, Pressure, Flow (Dynamics), Buoyancy, Thermography
Journal Articles

Rib Turbulator Effects on Crossflow-Fed Shaped Film Cooling Holes

Dale W. Fox, Fraser B. Jones, John W. McClintic, David G. Bogard, Thomas E. Dyson, Zachary D. Webster
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2019, 141(3): 031013.
Paper No: TURBO-18-1258
https://doi.org/10.1115/1.4041673
Published Online: January 21, 2019
View Article titled, Rib Turbulator Effects on Crossflow-Fed Shaped Film Cooling Holes
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Topics: Coolants, Film cooling, Flow (Dynamics), Discharge coefficient, Friction
Journal Articles

Numerical Optimization, Characterization, and Experimental Investigation of Additively Manufactured Communicating Microchannels

Kathryn L. Kirsch, Karen A. Thole
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. November 2018, 140(11): 111003.
Paper No: TURBO-18-1205
https://doi.org/10.1115/1.4041494
Published Online: October 8, 2018
View Article titled, Numerical Optimization, Characterization, and Experimental Investigation of Additively Manufactured Communicating Microchannels
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Topics: Design, Flow (Dynamics), Friction, Heat transfer, Microchannels, Pressure, Reynolds number, Shapes, Surface roughness, Fluids