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Journal Articles

EFFECTS OF LOCALIZED NON-GAUSSIAN ROUGHNESS ON HIGH PRESSURE TURBINE AERO-THERMAL PERFORMANCE: CONVECTIVE HEAT TRANSFER, SKIN-FRICTION AND THE REYNOLDS' ANALOGY

Accepted Manuscript
Thomas Jelly, Massimiliano Nardini, Richard Sandberg, Paul Vitt, Greg Sluyter
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach.
Paper No: TURBO-24-1286
https://doi.org/10.1115/1.4067354
Published Online: December 6, 2024
View Article titled, EFFECTS OF LOCALIZED NON-GAUSSIAN ROUGHNESS ON HIGH PRESSURE TURBINE AERO-THERMAL PERFORMANCE: CONVECTIVE HEAT TRANSFER, SKIN-FRICTION AND THE REYNOLDS' ANALOGY
Open the PDF for EFFECTS OF LOCALIZED NON-GAUSSIAN ROUGHNESS ON HIGH PRESSURE TURBINE AERO-THERMAL PERFORMANCE: CONVECTIVE HEAT TRANSFER, SKIN-FRICTION AND THE REYNOLDS' ANALOGY in another window
Topics: Boundary layers, Convection, Heat transfer, High pressure (Physics), Skin friction (Fluid dynamics), Surface roughness, Turbines, Turbochargers, Drag (Fluid dynamics), Computational fluid dynamics
Journal Articles

ROUGHNESS INVESTIGATIONS ON IN-SERVICE HIGH-PRESSURE COMPRESSOR BLADES - PART I: AN AUTOMATED PROCESS FOR HIGH-FIDELITY ROUGHNESS MEASUREMENTS

Accepted Manuscript
Ilias Vasilopoulos, Mirco Rostamian, Matthias Voigt, Marcus Meyer, Ronald Mailach
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach.
Paper No: TURBO-24-1054
https://doi.org/10.1115/1.4067291
Published Online: November 27, 2024
View Article titled, ROUGHNESS INVESTIGATIONS ON IN-SERVICE HIGH-PRESSURE COMPRESSOR BLADES - PART I: AN AUTOMATED PROCESS FOR HIGH-FIDELITY ROUGHNESS MEASUREMENTS
Open the PDF for ROUGHNESS INVESTIGATIONS ON IN-SERVICE HIGH-PRESSURE COMPRESSOR BLADES - PART I: AN AUTOMATED PROCESS FOR HIGH-FIDELITY ROUGHNESS MEASUREMENTS in another window
Topics: Blades, Compressors, High pressure (Physics), Surface roughness, Turbochargers, Rotors, Approximation, Engineering simulation, Errors, Lenses (Optics)
Journal Articles

Multirow Film-Cooling Effectiveness of Vertically Oriented Slot Cross-Section Diffusion Holes on a Turbine Nozzle Guide Vane Suction Surface

Accepted Manuscript
Jiajun Hu, Baitao An
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach.
Paper No: TURBO-24-1129
https://doi.org/10.1115/1.4067239
Published Online: November 21, 2024
View Article titled, Multirow Film-Cooling Effectiveness of Vertically Oriented Slot Cross-Section Diffusion Holes on a Turbine Nozzle Guide Vane Suction Surface
Open the PDF for Multirow Film-Cooling Effectiveness of Vertically Oriented Slot Cross-Section Diffusion Holes on a Turbine Nozzle Guide Vane Suction Surface in another window
Topics: Diffusion (Physics), Film cooling, Nozzle guide vanes, Suction, Turbines, Turbochargers
Journal Articles

Large Eddy Simulation Analysis of Loss Anomaly of a Turbine Blade With Large Trailing Edge Radius

Kenji Miki, Ali Ameri, Paul Giel
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2025, 147(3): 031012.
Paper No: TURBO-24-1265
https://doi.org/10.1115/1.4066914
Published Online: November 18, 2024
View Article titled, Large Eddy Simulation Analysis of Loss Anomaly of a Turbine Blade With Large Trailing Edge Radius
Open the PDF for Large Eddy Simulation Analysis of Loss Anomaly of a Turbine Blade With Large Trailing Edge Radius in another window
Topics: Pressure, Suction, Turbine blades, Vortex shedding, Wakes, Waves, Flow (Dynamics), Large eddy simulation, Blades, Reynolds number
Journal Articles

UNSTEADY FLOW MECHANISM OF IMPELLER STALL INCEPTION IN A HIGH-PRESSURE RATIO CENTRIFUGAL COMPRESSOR WITH BLEED SLOTS

Accepted Manuscript
Nobumichi Fujisawa, Yuta Yamamoto, Yutaka Ohta, Atsushi Ogino, Ryo Nakayama, Eijiro Kitamura
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach.
Paper No: TURBO-24-1248
https://doi.org/10.1115/1.4067178
Published Online: November 14, 2024
View Article titled, UNSTEADY FLOW MECHANISM OF IMPELLER STALL INCEPTION IN A HIGH-PRESSURE RATIO CENTRIFUGAL COMPRESSOR WITH BLEED SLOTS
Open the PDF for UNSTEADY FLOW MECHANISM OF IMPELLER STALL INCEPTION IN A HIGH-PRESSURE RATIO CENTRIFUGAL COMPRESSOR WITH BLEED SLOTS in another window
Topics: Compressors, High pressure (Physics), Impellers, Stall inception, Turbochargers, Unsteady flow, Blades, Suction, Pressure, Computational fluid dynamics
Journal Articles

Film-Cooling Performance Comparison of Blade Tips With a Trailing Edge, Pressure Side Cutback, or a Suction Side Squealer in a Transonic Linear Cascade

Ming-Feng Yeh, Timothy A. Burdett, Lesley M. Wright, Je-Chin Han
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2025, 147(5): 051002.
Paper No: TURBO-24-1281
https://doi.org/10.1115/1.4066911
Published Online: November 12, 2024
View Article titled, Film-Cooling Performance Comparison of Blade Tips With a Trailing Edge, Pressure Side Cutback, or a Suction Side Squealer in a Transonic Linear Cascade
Open the PDF for Film-Cooling Performance Comparison of Blade Tips With a Trailing Edge, Pressure Side Cutback, or a Suction Side Squealer in a Transonic Linear Cascade in another window
Topics: Blades, Coolants, Cooling, Density, Film cooling, Leakage flows, Pressure, Suction, Cascades (Fluid dynamics)
Journal Articles

A Digital Engineering Analysis of an Additively-Manufactured Turbine Vane

Reid A. Berdanier, Leland Tien, Karen A. Thole
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2025, 147(5): 051008.
Paper No: TURBO-24-1273
https://doi.org/10.1115/1.4066987
Published Online: November 12, 2024
View Article titled, A Digital Engineering Analysis of an Additively-Manufactured Turbine Vane
Open the PDF for A Digital Engineering Analysis of an Additively-Manufactured Turbine Vane in another window
Topics: Additive manufacturing, Airfoils, Design, Geometry, Pressure, Turbines, Flow (Dynamics), Digital engineering, Simulation, Hardware
Journal Articles

Cooling Injection Effect on the Suction Side Near-Tip Region of Turbine Blade With High-Speed Relative Casing Motion

Xu Peng, Hongmei Jiang, Shaopeng Lu
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2025, 147(4): 041009.
Paper No: TURBO-24-1237
https://doi.org/10.1115/1.4066813
Published Online: October 25, 2024
View Article titled, Cooling Injection Effect on the Suction Side Near-Tip Region of Turbine Blade With High-Speed Relative Casing Motion
Open the PDF for Cooling Injection Effect on the Suction Side Near-Tip Region of Turbine Blade With High-Speed Relative Casing Motion in another window
Topics: Blades, Cooling, Suction, Flow (Dynamics), Leakage, Turbine blades, Heat transfer
Journal Articles

Optimization of Low-Pressure Turbine Blade by Means of Fine Inspection of Loss Production Mechanisms

Matteo Russo, Andrea Carlucci, Matteo Dellacasagrande, Daniele Petronio, Davide Lengani, Daniele Simoni, Juri Bellucci, Matteo Giovannini, Angelo A. Granata, Monica Gily, Carlotta Manca
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2025, 147(4): 041005.
Paper No: TURBO-24-1304
https://doi.org/10.1115/1.4066818
Published Online: October 25, 2024
View Article titled, Optimization of Low-Pressure Turbine Blade by Means of Fine Inspection of Loss Production Mechanisms
Open the PDF for Optimization of Low-Pressure Turbine Blade by Means of Fine Inspection of Loss Production Mechanisms in another window
Topics: Blades, Design, Flow (Dynamics), Optimization, Pressure, Turbulence, Wakes, Boundary layers, Large eddy simulation, Suction
Journal Articles

Performance of Rough-Ribbed Low-Pressure Turbine Blades Under Varying Loading and Operating Conditions

S. M. Ananth, Massimiliano Nardini, Melissa Kozul, Nagabhushana Rao Vadlamani, Richard D. Sandberg
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. April 2025, 147(4): 041011.
Paper No: TURBO-24-1255
https://doi.org/10.1115/1.4066815
Published Online: October 25, 2024
View Article titled, Performance of Rough-Ribbed Low-Pressure Turbine Blades Under Varying Loading and Operating Conditions
Open the PDF for Performance of Rough-Ribbed Low-Pressure Turbine Blades Under Varying Loading and Operating Conditions in another window
Topics: Boundary layers, Flow (Dynamics), Reynolds number, Skin friction (Fluid dynamics), Surface roughness, Turbulence, Pressure, Simulation, Blades, Statistics
Journal Articles

Effects of Ribbed Crossflow Channel in a Turbine Blade on Film Cooling Performance of Diffusion Slot Holes with Various Cross Section Orientations

Jia-Jun Hu, Bai-Tao An
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2025, 147(1): 011003.
Paper No: TURBO-23-1304
https://doi.org/10.1115/1.4066144
Published Online: September 3, 2024
View Article titled, Effects of Ribbed Crossflow Channel in a Turbine Blade on Film Cooling Performance of Diffusion Slot Holes with Various Cross Section Orientations
Open the PDF for Effects of Ribbed Crossflow Channel in a Turbine Blade on Film Cooling Performance of Diffusion Slot Holes with Various Cross Section Orientations in another window
Topics: Blades, Coolants, Diffusion (Physics), Discharge coefficient, Fans, Film cooling, Flow (Dynamics), Pressure, Rotors, Turbine blades
Journal Articles

Investigation of the Discharge Coefficient for Laidback Fan-Shaped Holes on Turbine Blades Under Internal Crossflow Condition

Haoyang Liu, Qiang Du, Qingzong Xu, Hongye Li, Guangyao Xu
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2025, 147(1): 011005.
Paper No: TURBO-24-1087
https://doi.org/10.1115/1.4066145
Published Online: September 3, 2024
View Article titled, Investigation of the Discharge Coefficient for Laidback Fan-Shaped Holes on Turbine Blades Under Internal Crossflow Condition
Open the PDF for Investigation of the Discharge Coefficient for Laidback Fan-Shaped Holes on Turbine Blades Under Internal Crossflow Condition in another window
Topics: Blades, Coolants, Discharge coefficient, Flow (Dynamics), Pressure, Suction, Turbine blades, Reynolds number
Journal Articles

Aerothermal Performance of Slashface Leakage With Double Surface Angle Under Realistic Swirling Inflow

Zhiyu Li, Kaiyuan Zhang, Zhigang Li, Jun Li
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2025, 147(1): 011011.
Paper No: TURBO-24-1162
https://doi.org/10.1115/1.4066272
Published Online: September 3, 2024
View Article titled, Aerothermal Performance of Slashface Leakage With Double Surface Angle Under Realistic Swirling Inflow
Open the PDF for Aerothermal Performance of Slashface Leakage With Double Surface Angle Under Realistic Swirling Inflow in another window
Topics: Cascades (Fluid dynamics), Coolants, Design, Film cooling, Flow (Dynamics), Heat transfer, Inflow, Leakage, Pressure, Swirling flow
Journal Articles

Mid-Span Stall Inception in Low-Pressure-Ratio Transonic Fans

H. Verschueren, C. A. Hall, M. J. Wilson
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2024, 146(6): 061010.
Paper No: TURBO-22-1327
https://doi.org/10.1115/1.4064418
Published Online: January 29, 2024
View Article titled, Mid-Span Stall Inception in Low-Pressure-Ratio Transonic Fans
Open the PDF for Mid-Span Stall Inception in Low-Pressure-Ratio Transonic Fans in another window
Topics: Blades, Design, Flow (Dynamics), Pressure, Rotors, Suction, Separation (Technology), Stall inception, Computational fluid dynamics, Leakage flows
Journal Articles

Improvements in the Prediction of Steady and Unsteady Transition and Mixing in Low-Pressure Turbines by Means of Machine-Learnt Closures

Roberto Pacciani, Michele Marconcini, Andrea Arnone, Francesco Bertini, Ennio Spano, Simone Rosa Taddei, Richard D. Sandberg
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2024, 146(5): 051009.
Paper No: TURBO-23-1186
https://doi.org/10.1115/1.4064312
Published Online: January 16, 2024
View Article titled, Improvements in the Prediction of Steady and Unsteady Transition and Mixing in Low-Pressure Turbines by Means of Machine-Learnt Closures
Open the PDF for Improvements in the Prediction of Steady and Unsteady Transition and Mixing in Low-Pressure Turbines by Means of Machine-Learnt Closures in another window
Topics: Blades, Boundary layers, Cascades (Fluid dynamics), Machinery, Pressure, Reynolds number, Reynolds-averaged Navier–Stokes equations, Turbines, Turbulence, Wakes
Journal Articles

Heat Transfer Coefficient and Adiabatic Effectiveness Measurements on a Nozzle Guide Vane With a Single Row of Cylindrical Holes

S. Galeotti, T. Bacci, A. Picchi, B. Facchini, S. Cubeda
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2024, 146(5): 051010.
Paper No: TURBO-23-1241
https://doi.org/10.1115/1.4064315
Published Online: January 16, 2024
View Article titled, Heat Transfer Coefficient and Adiabatic Effectiveness Measurements on a Nozzle Guide Vane With a Single Row of Cylindrical Holes
Open the PDF for Heat Transfer Coefficient and Adiabatic Effectiveness Measurements on a Nozzle Guide Vane With a Single Row of Cylindrical Holes in another window
Topics: Boundary layers, Coolants, Film cooling, Flow (Dynamics), Free stream turbulence, Heat transfer coefficients, Nozzle guide vanes, Pressure, Suction, Turbulence
Journal Articles

Experimental Investigation of Additional Loss Associated With Incoming Wakes in Low-Pressure Turbine Cascades

Hidekazu Kodama, Ken-ichi Funazaki
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2024, 146(5): 051013.
Paper No: TURBO-23-1274
https://doi.org/10.1115/1.4064318
Published Online: January 16, 2024
View Article titled, Experimental Investigation of Additional Loss Associated With Incoming Wakes in Low-Pressure Turbine Cascades
Open the PDF for Experimental Investigation of Additional Loss Associated With Incoming Wakes in Low-Pressure Turbine Cascades in another window
Topics: Blades, Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Reynolds number, Suction, Turbines, Wakes, Unsteady flow, Boundary layers
Journal Articles

Compressor Tip Leakage Mechanisms

James V. Taylor, Anthony M. J. Dickens, Harry Simpson
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2024, 146(5): 051012.
Paper No: TURBO-23-1261
https://doi.org/10.1115/1.4064317
Published Online: January 16, 2024
View Article titled, Compressor Tip Leakage Mechanisms
Open the PDF for Compressor Tip Leakage Mechanisms in another window
Topics: Blades, Compressors, Design, Flow (Dynamics), Leakage, Leakage flows, Pressure, Reynolds-averaged Navier–Stokes equations, Shear (Mechanics), Suction
Journal Articles

Direct Numerical Simulation of Transitional and Turbulent Flows Over Multi-Scale Surface Roughness—Part II: The Effect of Roughness on the Performance of a High-Pressure Turbine Blade

Massimiliano Nardini, Thomas O. Jelly, Melissa Kozul, Richard D. Sandberg, Paul Vitt, Greg Sluyter
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2024, 146(3): 031009.
Paper No: TURBO-23-1225
https://doi.org/10.1115/1.4063974
Published Online: December 4, 2023
View Article titled, Direct Numerical Simulation of Transitional and Turbulent Flows Over Multi-Scale Surface Roughness—Part II: The Effect of Roughness on the Performance of a High-Pressure Turbine Blade
Open the PDF for Direct Numerical Simulation of Transitional and Turbulent Flows Over Multi-Scale Surface Roughness—Part II: The Effect of Roughness on the Performance of a High-Pressure Turbine Blade in another window
Topics: Blades, Boundary layers, Surface roughness, Turbulence, Computer simulation, Turbine blades, High pressure (Physics), Flow (Dynamics), Heat flux, Wakes
Journal Articles

Assessment of the DDES- γ Model for the Simulation of a Highly Loaded Turbine Cascade

Nima Fard Afshar, Felix M. Möller, Stefan Henninger, Dragan Kožulović, Christian Morsbach, Patrick Bechlars, Peter Jeschke
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2024, 146(1): 011011.
Paper No: TURBO-23-1219
https://doi.org/10.1115/1.4064079
Published Online: November 30, 2023
View Article titled, Assessment of the DDES- γ Model for the Simulation of a Highly Loaded Turbine Cascade
Open the PDF for Assessment of the DDES- γ Model for the Simulation of a Highly Loaded Turbine Cascade in another window
Topics: Boundary layers, Cascades (Fluid dynamics), Delay differential equations, Pressure, Reynolds-averaged Navier–Stokes equations, Separation (Technology), Simulation, Suction, Turbines, Turbulence