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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
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Topics: Boundary layers, Cascades (Fluid dynamics), Delay differential equations, Pressure, Reynolds-averaged Navier–Stokes equations, Separation (Technology), Simulation, Suction, Turbines, Turbulence
Journal Articles

Excitation of a Separated Flow by a Series of Protuberances Near the Leading Edge of a Model Aerofoil

Pradeep Singh, S. Sarkar
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. November 2023, 145(11): 111001.
Paper No: TURBO-23-1047
https://doi.org/10.1115/1.4063048
Published Online: August 16, 2023
View Article titled, Excitation of a Separated Flow by a Series of Protuberances Near the Leading Edge of a Model Aerofoil
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Topics: Airfoils, Bubbles, Excitation, Flow (Dynamics), Separation (Technology), Shear (Mechanics), Turbulence, Fluctuations (Physics), Boundary layers
Journal Articles

Unsteady Structure of Compressor Tip Leakage Flows

Joshua M. Maynard, Andrew P. S. Wheeler, James V. Taylor, Roger Wells
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051005.
Paper No: TURBO-22-1153
https://doi.org/10.1115/1.4055769
Published Online: November 25, 2022
View Article titled, Unsteady Structure of Compressor Tip Leakage Flows
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Topics: Blades, Flow (Dynamics), Separation (Technology), Simulation, Turbulence, Corners (Structural elements), Compressors, Stators, Bubbles, Suction
Journal Articles

Profile Loss Reduction of High-Lift Turbine Blades With Rough and Ribbed Surfaces

Ananth Sivaramakrishnan Malathi, Massimiliano Nardini, Aditya Vaid, Nagabhushana Rao Vadlamani, Richard D. Sandberg
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. February 2023, 145(2): 021001.
Paper No: TURBO-22-1214
https://doi.org/10.1115/1.4055501
Published Online: October 11, 2022
View Article titled, Profile Loss Reduction of High-Lift Turbine Blades With Rough and Ribbed Surfaces
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Topics: Boundary layers, Flow (Dynamics), Pressure gradient, Suction, Surface roughness, Turbulence, Simulation, Skin friction (Fluid dynamics), Turbine blades, Shapes
Journal Articles

Low Reynolds Number Effects on the Separation and Wake of a Compressor Blade

Qiang Liu, Will Ager, Cesare Hall, Andrew P.S. Wheeler
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2022, 144(10): 101008.
Paper No: TURBO-21-1221
https://doi.org/10.1115/1.4054148
Published Online: April 19, 2022
View Article titled, Low Reynolds Number Effects on the Separation and Wake of a Compressor Blade
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Topics: Blades, Bubbles, Compressors, Flow (Dynamics), Pressure, Reynolds number, Separation (Technology), Turbulence, Wakes, Cascades (Fluid dynamics)
Journal Articles

Dynamics of Shock Waves Interacting With Laminar Separated Transonic Turbine Flow Investigated by High-Speed Schlieren and Surface Hot-Film Sensors

Marcel Börner, Reinhard Niehuis
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2021, 143(5): 051010.
Paper No: TURBO-20-1249
https://doi.org/10.1115/1.4050330
Published Online: April 13, 2021
View Article titled, Dynamics of Shock Waves Interacting With Laminar Separated Transonic Turbine Flow Investigated by High-Speed Schlieren and Surface Hot-Film Sensors
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Topics: Boundary layers, Flow (Dynamics), Mach number, Sensors, Separation (Technology), Shock waves, Turbines, Suction, Cascades (Fluid dynamics), Bubbles
Journal Articles

Numerical and Experimental Investigation of the Reynolds Number and Reduced Frequency Effects on Low-Pressure Turbine Airfoils

M. Bolinches-Gisbert, David Cadrecha Robles, Roque Corral, Fernando Gisbert
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. February 2021, 143(2): 021004.
Paper No: TURBO-20-1230
https://doi.org/10.1115/1.4049612
Published Online: February 1, 2021
View Article titled, Numerical and Experimental Investigation of the Reynolds Number and Reduced Frequency Effects on Low-Pressure Turbine Airfoils
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Topics: Airfoils, Boundary layers, Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Reynolds number, Turbines, Turbulence, Wakes, Bubbles
Journal Articles

Validation Studies of Linear Oscillating Compressor Cascade and Use of Influence Coefficient Method

H. M. Phan, L. He
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2020, 142(5): 051005.
Paper No: TURBO-19-1211
https://doi.org/10.1115/1.4045657
Published Online: April 9, 2020
View Article titled, Validation Studies of Linear Oscillating Compressor Cascade and Use of Influence Coefficient Method
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Topics: Blades, Cascades (Fluid dynamics), Clearances (Engineering), Damping, Pressure, Suction, Boundary layers, Flow (Dynamics), Compressors, Turbulence
Journal Articles

Prediction of Reynolds Number Effects on Low-Pressure Turbines Using a High-Order ILES Method

M. Bolinches-Gisbert, David Cadrecha Robles, Roque Corral, Fernando Gisbert
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2020, 142(3): 031002.
Paper No: TURBO-19-1248
https://doi.org/10.1115/1.4045776
Published Online: February 20, 2020
View Article titled, Prediction of Reynolds Number Effects on Low-Pressure Turbines Using a High-Order ILES Method
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Topics: Airfoils, Boundary layers, Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Reynolds number, Simulation, Turbulence, Wakes, Fluctuations (Physics)
Journal Articles

Numerical Analysis of an Instrumented Turbine Blade Cascade

Bryn N. Ubald, Paul G. Tucker, Jiahuan Cui, Rob Watson, Shahrokh Shahpar
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2019, 141(5): 051013.
Paper No: TURBO-18-1272
https://doi.org/10.1115/1.4041935
Published Online: March 1, 2019
View Article titled, Numerical Analysis of an Instrumented Turbine Blade Cascade
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Topics: Blades, Bubbles, Cascades (Fluid dynamics), Flow (Dynamics), Numerical analysis, Pressure, Probes, Separation (Technology), Turbulence, Inflow
Journal Articles

On the Simulation and Spectral Analysis of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine

Georg Geiser, Jens Wellner, Edmund Kügeler, Anton Weber, Anselm Moors
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2019, 141(5): 051012.
Paper No: TURBO-18-1281
https://doi.org/10.1115/1.4041820
Published Online: January 25, 2019
View Article titled, On the Simulation and Spectral Analysis of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine
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Topics: Blades, Flow (Dynamics), Flow separation, Pressure, Simulation, Turbines, Turbulence, Wheels, Fluctuations (Physics), Separation (Technology)
Journal Articles

Correlations for the Prediction of Intermittency and Turbulent Spot Production Rate in Separated Flows

M. Dellacasagrande, R. Guida, D. Lengani, D. Simoni, M. Ubaldi, P. Zunino
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2019, 141(3): 031003.
Paper No: TURBO-18-1164
https://doi.org/10.1115/1.4042066
Published Online: January 16, 2019
View Article titled, Correlations for the Prediction of Intermittency and Turbulent Spot Production Rate in Separated Flows
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Topics: Boundary layers, Flow (Dynamics), Reynolds number, Separation (Technology), Turbulence, Fittings, Bubbles, Shear (Mechanics)
Journal Articles

Experimental Investigation of Pressure Side Flow Separation on the T106C Airfoil at High Suction Side Incidence Flow

Stephan Stotz, Yavuz Guendogdu, Reinhard Niehuis
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2017, 139(5): 051007.
Paper No: TURBO-16-1242
https://doi.org/10.1115/1.4035210
Published Online: January 24, 2017
View Article titled, Experimental Investigation of Pressure Side Flow Separation on the T106C Airfoil at High Suction Side Incidence Flow
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Topics: Pressure, Separation (Technology), Turbulence, Suction, Flow (Dynamics), Reynolds number, Cascades (Fluid dynamics), Wakes, Bubbles
Journal Articles

Experimental Investigation on the Time–Space Evolution of a Laminar Separation Bubble by Proper Orthogonal Decomposition and Dynamic Mode Decomposition

D. Lengani, D. Simoni, M. Ubaldi, P. Zunino, F. Bertini
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2017, 139(3): 031006.
Paper No: TURBO-16-1225
https://doi.org/10.1115/1.4034917
Published Online: November 16, 2016
View Article titled, Experimental Investigation on the Time–Space Evolution of a Laminar Separation Bubble by Proper Orthogonal Decomposition and Dynamic Mode Decomposition
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Topics: Bubbles, Dynamics (Mechanics), Eigenvalues, Flow (Dynamics), Fluctuations (Physics), Principal component analysis, Separation (Technology), Shear (Mechanics), Wavelength, Boundary layers
Journal Articles

Numerical Investigation of Three-Dimensional Separation in an Axial Flow Compressor: The Influence of Freestream Turbulence Intensity and Endwall Boundary Layer State

Ashley D. Scillitoe, Paul G. Tucker, Paolo Adami
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. February 2017, 139(2): 021011.
Paper No: TURBO-16-1170
https://doi.org/10.1115/1.4034797
Published Online: October 26, 2016
View Article titled, Numerical Investigation of Three-Dimensional Separation in an Axial Flow Compressor: The Influence of Freestream Turbulence Intensity and Endwall Boundary Layer State
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Topics: Boundary layers, Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Separation (Technology), Suction, Turbulence, Inflow, Compressors, Bubbles
Journal Articles

Aerothermal Characterization of a Rotating Ribbed Channel at Engine Representative Conditions—Part I: High-Resolution Particle Image Velocimetry Measurements

Ignacio Mayo, Gian Luca Gori, Aude Lahalle, Tony Arts
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. October 2016, 138(10): 101008.
Paper No: TURBO-16-1034
https://doi.org/10.1115/1.4032926
Published Online: April 26, 2016
View Article titled, Aerothermal Characterization of a Rotating Ribbed Channel at Engine Representative Conditions—Part I: High-Resolution Particle Image Velocimetry Measurements
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Topics: Flow (Dynamics), Particulate matter, Resolution (Optics), Rotation, Shear (Mechanics), Turbulence, Vortices, Fluids, Bubbles, Engines
Journal Articles

Compressible Direct Numerical Simulation of Low-Pressure Turbines—Part II: Effect of Inflow Disturbances

Vittorio Michelassi, Li-Wei Chen, Richard Pichler, Richard D. Sandberg
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. July 2015, 137(7): 071005.
Paper No: TURBO-14-1212
https://doi.org/10.1115/1.4029126
Published Online: July 1, 2015
View Article titled, Compressible Direct Numerical Simulation of Low-Pressure Turbines—Part II: Effect of Inflow Disturbances
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Topics: Boundary layers, Flow (Dynamics), Pressure, Separation (Technology), Turbulence, Wakes, Bubbles, Errors, Blades, Viscosity
Journal Articles

Forcing of Separation Bubbles by Main Flow Unsteadiness or Pulsed Vortex Generating Jets—A Comparison

Christoph Lyko, Jerrit Dähnert, Dieter Peitsch
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2014, 136(5): 051016.
Paper No: TURBO-13-1125
https://doi.org/10.1115/1.4025214
Published Online: October 23, 2013
View Article titled, Forcing of Separation Bubbles by Main Flow Unsteadiness or Pulsed Vortex Generating Jets—A Comparison
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Topics: Boundary layers, Bubbles, Flow (Dynamics), Separation (Technology), Turbulence, Vortices, Shapes, Momentum, Reynolds number
Journal Articles

The Effect of Airfoil Thickness on the Efficiency of Low-Pressure Turbines

Diego Torre, Raúl Vázquez, Leyre Armañanzas, Fernando Partida, Guillermo García-Valdecasas
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2014, 136(5): 051014.
Paper No: TURBO-12-1218
https://doi.org/10.1115/1.4025163
Published Online: October 23, 2013
View Article titled, The Effect of Airfoil Thickness on the Efficiency of Low-Pressure Turbines
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Topics: Airfoils, Design, Flow (Dynamics), Pressure, Turbines, Separation (Technology), Bubbles, Reynolds number, Suction
Journal Articles

The Effect of Surface Roughness on Laminar Separated Boundary Layers

Mark P. Simens, Ayse G. Gungor
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. March 2014, 136(3): 031014.
Paper No: TURBO-13-1117
https://doi.org/10.1115/1.4025200
Published Online: October 22, 2013
View Article titled, The Effect of Surface Roughness on Laminar Separated Boundary Layers
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Topics: Surface roughness, Separation (Technology), Bubbles, Boundary layers