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Journal Articles

The Unsteady Shock-Boundary Layer Interaction in a Compressor Cascade – Part 3: Mechanisms of Shock Oscillation

Accepted Manuscript
Edwin Joseph Munoz Lopez, Alexander Hergt, Joachim Klinner, Bjoern F. Klose, Christian Willert, Volker Gümmer
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach.
Paper No: TURBO-24-1157
https://doi.org/10.1115/1.4066186
Published Online: August 7, 2024
View Article titled, The Unsteady Shock-Boundary Layer Interaction in a Compressor Cascade – Part 3: Mechanisms of Shock Oscillation
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Topics: Cascades (Fluid dynamics), Compressors, Oscillations, Shock (Mechanics), Turbochargers, Computational fluid dynamics, Pressure, Unsteady flow, Waves, Blades
Journal Articles

Characterizing the Unsteady Flow Field in Low-Flow Turbine Operation

Hye Rim Kim, Lennart Stania, Niklas Maroldt, Marcel Oettinger, Joerg R. Seume
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2024, 146(10): 101003.
Paper No: TURBO-23-1232
https://doi.org/10.1115/1.4065243
Published Online: April 23, 2024
View Article titled, Characterizing the Unsteady Flow Field in Low-Flow Turbine Operation
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Topics: Blades, Flow (Dynamics), Pressure, Turbines, Vibration, Excitation, Acoustics, Rotors, Unsteady flow, Transients (Dynamics)
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
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Topics: Blades, Cascades (Fluid dynamics), Flow (Dynamics), Pressure, Reynolds number, Suction, Turbines, Wakes, Unsteady flow, Boundary layers
Journal Articles

Unsteady Flow Structure of Corner Separation in a Highly Loaded Compressor Cascade

Weibo Zhong, Yangwei Liu, Yumeng Tang
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. March 2024, 146(3): 031003.
Paper No: TURBO-23-1220
https://doi.org/10.1115/1.4063926
Published Online: November 16, 2023
View Article titled, Unsteady Flow Structure of Corner Separation in a Highly Loaded Compressor Cascade
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Topics: Cascades (Fluid dynamics), Compressors, Corners (Structural elements), Flow (Dynamics), Pressure, Separation (Technology), Unsteady flow, Vortices, Blades, Delay differential equations
Journal Articles

Investigation of Unsteady Rotor–Stator Interaction and Deterministic Correlation Analysis in a Transonic Compressor Stage

Yangwei Liu, Xindi Wei, Yumeng Tang
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2023, 145(7): 071004.
Paper No: TURBO-22-1301
https://doi.org/10.1115/1.4056716
Published Online: February 9, 2023
View Article titled, Investigation of Unsteady Rotor–Stator Interaction and Deterministic Correlation Analysis in a Transonic Compressor Stage
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Topics: Rotors, Stators, Compressors, Flow (Dynamics), Stress, Unsteady flow, Blades, Anisotropy
Journal Articles

High-Fidelity Simulation Study of the Unsteady Flow Effects on High-Pressure Turbine Blade Performance

John Leggett, Yaomin Zhao, Richard D. Sandberg
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2023, 145(1): 011002.
Paper No: TURBO-22-1215
https://doi.org/10.1115/1.4055576
Published Online: October 3, 2022
View Article titled, High-Fidelity Simulation Study of the Unsteady Flow Effects on High-Pressure Turbine Blade Performance
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Topics: Blades, Boundary layers, Flow (Dynamics), Pressure, Rotors, Stators, Suction, Turbulence, Wakes, High pressure (Physics)
Journal Articles

An Approximate Time Domain Nonlinear Harmonic Method for Analyzing Unsteady Flows With Multiple Fundamental Modes

Dingxi Wang, Sen Zhang
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2022, 144(12): 121002.
Paper No: TURBO-22-1130
https://doi.org/10.1115/1.4055266
Published Online: September 15, 2022
View Article titled, An Approximate Time Domain Nonlinear Harmonic Method for Analyzing Unsteady Flows With Multiple Fundamental Modes
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Topics: Blades, Fourier transforms, Turbomachinery, Unsteady flow, Flow (Dynamics), Boundary-value problems
Journal Articles

Analysis of the Unsteady Flow Field at Stall Conditions for a Low-Speed Low-Pressure Ratio Axial Fan With Full-Annulus Simulation

Yannick Bousquet, Nicolas Binder, Ludovic Rojda, Adrien Thacker
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. November 2022, 144(11): 111008.
Paper No: TURBO-22-1019
https://doi.org/10.1115/1.4054815
Published Online: July 21, 2022
View Article titled, Analysis of the Unsteady Flow Field at Stall Conditions for a Low-Speed Low-Pressure Ratio Axial Fan With Full-Annulus Simulation
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Topics: Blades, Flow (Dynamics), Pressure, Rotors, Simulation, Stators, Stall inception, Annulus, Unsteady flow, Computer simulation
Journal Articles

Physics and Instantaneous Performance of Radial Turbines in Unsteady Flows: Validity of the Quasi-Steady Assumption for the Rotor

Nicolas Binder, Yanncik Bousquet, Florian Hermet, Jérémie Gressier
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. November 2022, 144(11): 111002.
Paper No: TURBO-21-1186
https://doi.org/10.1115/1.4054777
Published Online: July 4, 2022
View Article titled, Physics and Instantaneous Performance of Radial Turbines in Unsteady Flows: Validity of the Quasi-Steady Assumption for the Rotor
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Topics: Flow (Dynamics), Pressure, Rotors, Torque, Transients (Dynamics), Turbines, Unsteady flow, Waves, Computer simulation, Physics
Journal Articles

Detached Eddy Simulation of the Unsteady Flow and Film Cooling Characteristics of an Endwall With an Interrupted Slot

Qiang Du, Guangyao Xu, Qingzong Xu, Pei Wang
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2022, 144(10): 101012.
Paper No: TURBO-21-1195
https://doi.org/10.1115/1.4054543
Published Online: June 16, 2022
View Article titled, Detached Eddy Simulation of the Unsteady Flow and Film Cooling Characteristics of an Endwall With an Interrupted Slot
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Topics: Coolants, Film cooling, Flat plates, Flow (Dynamics), Simulation, Unsteady flow, Vortices, Eddies (Fluid dynamics), Temperature, Vorticity
Journal Articles

Coupled Time and Passage Spectral Method for an Efficient Resolution of Turbomachinery Far Upstream Wakes

Dingxi Wang, Sen Zhang, Xiuquan Huang, Huang Huang
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. February 2022, 144(2): 021006.
Paper No: TURBO-21-1119
https://doi.org/10.1115/1.4052232
Published Online: September 27, 2021
View Article titled, Coupled Time and Passage Spectral Method for an Efficient Resolution of Turbomachinery Far Upstream Wakes
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Topics: Blades, Flow (Dynamics), Rotors, Wakes, Turbomachinery, Stators, Resolution (Optics), Fourier transforms, Unsteady flow
Journal Articles

Efficient Passage-Spectral Method For Unsteady Flows Under Stall Conditions

David Romera, Roque Corral
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2020, 142(12): 121007.
Paper No: TURBO-19-1176
https://doi.org/10.1115/1.4047934
Published Online: November 16, 2020
View Article titled, Efficient Passage-Spectral Method For Unsteady Flows Under Stall Conditions
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Topics: Annulus, Blades, Flow (Dynamics), Pressure, Rotors, Simulation, Unsteady flow, Compressors, Stall inception, NASA
Journal Articles

Unsteady Flow Interactions Between a High- and Low-Pressure Turbine

P. Z. Sterzinger, S. Zerobin, F. Merli, L. Wiesinger, M. Dellacasagrande, A. Peters, G. Maini, F. Heitmeir, E. Göttlich
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2020, 142(10): 101012.
Paper No: TURBO-19-1259
https://doi.org/10.1115/1.4046453
Published Online: September 18, 2020
View Article titled, Unsteady Flow Interactions Between a High- and Low-Pressure Turbine
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Topics: Flow (Dynamics), Fluctuations (Physics), Pressure, Rotors, Turbines, Unsteady flow
Journal Articles

Time-Space Spectral Method for Rotor–Rotor/Stator–Stator Interactions

Xiuquan Huang, Ding Xi Wang
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. November 2019, 141(11): 111006.
Paper No: TURBO-19-1125
https://doi.org/10.1115/1.4044771
Published Online: October 11, 2019
View Article titled, Time-Space Spectral Method for Rotor–Rotor/Stator–Stator Interactions
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Topics: Blades, Flow (Dynamics), Rotors, Stators, Unsteady flow
Journal Articles

Employing the Time-Domain Unsteady Discrete Adjoint Method for Shape Optimization of Three-Dimensional Multirow Turbomachinery Configurations

Georgios Ntanakas, Marcus Meyer, Kyriakos C. Giannakoglou
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. August 2018, 140(8): 081006.
Paper No: TURBO-17-1229
https://doi.org/10.1115/1.4040564
Published Online: July 26, 2018
View Article titled, Employing the Time-Domain Unsteady Discrete Adjoint Method for Shape Optimization of Three-Dimensional Multirow Turbomachinery Configurations
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Topics: Compressors, Computation, Design, Flow (Dynamics), Turbines, Turbomachinery, Optimization, Blades, Unsteady flow, Computational fluid dynamics
Journal Articles

A Theory on the Onset of Acoustic Resonance in a Multistage Compressor

Xiaohua Liu, Tobias Willeke, Florian Herbst, Jun Yang, Joerg Seume
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. August 2018, 140(8): 081003.
Paper No: TURBO-18-1032
https://doi.org/10.1115/1.4040551
Published Online: July 24, 2018
View Article titled, A Theory on the Onset of Acoustic Resonance in a Multistage Compressor
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Topics: Acoustics, Blades, Compressors, Flow (Dynamics), Pressure, Resonance, Rotors, Unsteady flow
Journal Articles

Investigation of Unsteady Flow Phenomena in First Vane Caused by Combustor Flow With Swirl

Simon Jacobi, Cosimo Mazzoni, Budimir Rosic, Krishan Chana
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. April 2017, 139(4): 041006.
Paper No: TURBO-16-1167
https://doi.org/10.1115/1.4035073
Published Online: January 10, 2017
View Article titled, Investigation of Unsteady Flow Phenomena in First Vane Caused by Combustor Flow With Swirl
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Topics: Combustion chambers, Computational fluid dynamics, Flow (Dynamics), Gas turbines, Heat transfer, Unsteady flow, Turbines, Design, Cascades (Fluid dynamics), Compressors
Journal Articles

Simulating Periodic Unsteady Flows Using a Cubic-Spline-Based Time Collocation Method

Pengcheng Du, Fangfei Ning
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. April 2014, 136(4): 041014.
Paper No: TURBO-13-1120
https://doi.org/10.1115/1.4025203
Published Online: October 23, 2013
View Article titled, Simulating Periodic Unsteady Flows Using a Cubic-Spline-Based Time Collocation Method
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Topics: Blades, Flow (Dynamics), Pressure, Rotors, Splines, Stators, Unsteady flow, Inlet guide vanes, Simulation
Journal Articles

Nonlinear Time and Frequency Domain Methods for Multirow Aeromechanical Analysis

M. T. Rahmati, L. He, D. X. Wang, Y. S. Li, R. G. Wells, S. K. Krishnababu
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. April 2014, 136(4): 041010.
Paper No: TURBO-13-1091
https://doi.org/10.1115/1.4024899
Published Online: September 26, 2013
View Article titled, Nonlinear Time and Frequency Domain Methods for Multirow Aeromechanical Analysis
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Topics: Blades, Cascades (Fluid dynamics), Compressors, Flow (Dynamics), Pressure, Rotors, Stators, Unsteady flow, Vibration, Turbines
Journal Articles

A Physical Interpretation of Stagnation Pressure and Enthalpy Changes in Unsteady Flow

H. P. Hodson, T. P. Hynes, E. M. Greitzer, C. S. Tan
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Special Section: Honoring Dr. Leroy H. Smith
J. Turbomach. November 2012, 134(6): 060902.
https://doi.org/10.1115/1.4007208
Published Online: September 19, 2012
View Article titled, A Physical Interpretation of Stagnation Pressure and Enthalpy Changes in Unsteady Flow
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Topics: Fluids, Particulate matter, Pressure, Unsteady flow, Enthalpy, Wakes, Blades, Rotors, Turbomachinery, Flow (Dynamics)